Aviation Info Flashcards
(128 cards)
1
Q
What are the visibility limits for the VASI system during the daytime?
A. 1 mile
B. 2 miles
C. 3 miles
D. 4 miles
E. 5 miles
A
Correct Answer: E
Explanation:
E. Five miles. The upper limit for the VASI system during the day under normal conditions is five miles.
2
Q
Which of these is not a common helicopter control?
A. The jawbone
B. The collective
C. The cyclic
D. The directional control system
E. None of the above
A
Correct Answer: A
Explanation:
A. The jawbone. The jawbone is not a helicopter control whereas the cyclic, the collective, and the directional control system all are.
3
Q
Which of the following physical forces is not part of the flight envelope?
A. Thrust
B. Drag
C. Weight
D. Gravity
E. Lift
A
Correct Answer: C
Explanation:
C. Weight. Lift, gravity, thrust, and drag are all part of the flight envelope.
4
Q
Why does the landing gear wheels on an airplane come in sets of 3?
A. More streamlined
B. Tradition
C. Better weight tolerance
D. Better takeoff speed
A
E. Increased passenger capacity
Correct Answer: C
Explanation:
C. Better weight tolerance. Landing gear wheels come in sets of three in order to tolerate more weight.
5
Q
What is the shape of the Delta Wing system?
A. Triangular
B. Rectangular
C. Circular
D. Diamond
E. Uneven
A
Correct Answer: A
Explanation:
A. Triangular. The Delta Wing system consists of a triangular shape.
6
Q
A third set of landing gear wheels positioned under the nose of a plane is known as the
A. Frontal arrangement
B. Common arrangement
C. Common configuration
D. Tricycle arrangement
E. Forward landing configuration
A
Correct Answer: D
Explanation:
D. Tricycle arrangement. The most common and modern configuration.
7
Q
A plane’s longitudinal axis runs
A. From the nose to the tale in a straight line running through the center
B. From wing to wing
C. From floor to ceiling
D. Diagonally, from the front of the plane to the rear
E. Diagonally, from the rear of the plane to the front
A
Correct Answer: A
Explanation:
A. Nose to tail straight line through center. One of the three main axis.
8
Q
Which of the following is not a primary flight maneuver?
A. Hovering
B. Straight and level flight
C. Turning
D. Climbing
E. Descending
A
Correct Answer: A
Explanation:
A. Hovering. Hovering is performed by helicopters.
9
Q
A plane’s wings serve the function of
A. Powerplants
B. Rudders
C. Airfoils
D. Truss fuselages
E. Trim Tabs
A
Correct Answer: C
Explanation:
C. Airfoils
10
Q
The wing shape that performs well at higher speeds is known as the
A. Swept Wing
B. Swoop Wing
C. Site Wing
D. Stand Wing
E. Swift Wing
A
Correct Answer: A
Explanation:
A. Swept wing. Like all wing types, the swept wing involves a trade-off in performance depending upon the conditions present.
11
Q
The purpose of a tail rotor on a helicopter is to
A. Counteract lift
B. Counteract torque
C. Increase thrust
D. Increase lift
E. Decrease thrust
A
Correct Answer: B
Explanation:
B. Counteract torque. Without this manipulation, a helicopter would not be able to fly in the intended direction and instead would spin in an uncontrolled way.
12
Q
If a runway is positioned equal to the number 6 on a normal clock face, it would be given the number
A. 6
B. 12
C. 9
D. 18
E. 7
A
Correct Answer: D
Explanation:
D. 18. The naming is based on the degrees of a circle, so the halfway point would receive the name 18.
13
Q
The areas of an airport controlled by an air traffic controller are called the
A. Movement areas
B. Major areas
C. Motion areas
D. Aviation areas
E. Operational areas
A
Correct Answer: A
Explanation:
A. Movement areas.
14
Q
For an airplane turn to be classed as shallow, it must occur at
A. An angle of 30 degrees or less
B. An angle of 20 degrees or less
C. An angle of 45 degrees or less
D. An angle of 10 degrees or less
E. An angle of 5 degrees or less
A
Correct Answer: B
Explanation:
B. An angle of 20 degrees or less. Turns occurring at 20 degrees or less are termed shallow.
15
Q
To recover from a plane stalling, a pilot is required to
A. Angle the nose of the plane upwards and greatly increase throttle
B. Angle the nose of the plane downwards and slightly increase throttle
C. Angle the nose of the plane downwards and greatly increase throttle
D. Angle the nose of the plane upwards and slightly increase throttle
E. Angle the nose of the plane straight and level and slightly increase
A
Correct Answer: C
Explanation:
C. Angle the nose of the plane downwards and greatly increase throttle. This action is needed to attempt to restart the plane and avoid a crash or forced landing.
16
Q
Runway lights colored an unbroken red indicate an aircraft is
A. Within 3000 feet of the runway
B. Within 2000 feet of the runway
C. Within 4000 feet of the runway
D. Within 100 feet of the runway
E. Within 1000 feet of the runway
A
Correct Answer: E
Explanation:
E. Within 1000 feet of the runway.
17
Q
During landing, a plane’s nose is angled
A. Upwards
B. Downwards
C. Level
D. Different positions are possible
E. Depends on the type of plane
A
Correct Answer: A
Explanation:
A. Upwards. The landing is achieved by manipulating the levels of thrust to allow the plane to touch the ground in the smoothest way possible.
18
Q
Which of the following are not one of the four main flight maneuvers?
A. Straight and level flight
B. Climbing
C. Swooping
D. Descending
E. Turning
A
Correct Answer: C
Explanation:
C. Swooping
19
Q
In night conditions, a VASI system is effective up to a distance of
A. 10 miles
B. 30 miles
C. 40 miles
D. 20 miles
E. 35 miles
A
Correct Answer: D
Explanation:
D. 20 miles
20
Q
A helicopter’s directional control system allows the pilot to
A. Adjust the pitch of the main rotor
B. Decrease levels of thrust
C. Hover without using any other controls
D. Adjust the pitch of the tail rotor
E. None of the above
A
Correct Answer: D
Explanation:
D. Adjust the pitch of the tail rotor.
21
Q
During a climb, an airplane pilot is required to
A. Generate extra thrust to counter increased torque
B. Generate extra torque to counter increased lift
C. Generate extra lift to counter increased torque
D. Generate extra thrust to counter increased drag
E. Generate extra torque to counter increased drag
A
Correct Answer: D
Explanation:
D. Generate extra thrust to counter increased drag. If a pilot does not do this, the plane will not be able to climb due to the increased drag acting on it.
22
Q
Which of the following best describes the difference between a wing’s leading edge and trailing edge?
A. The leading edge is fatter and more rounded than the trailing edge.
B. The leading edge is thinner and more rounded than the trailing edge.
C. The leading edge is of equal thickness but more rounded than the trailing edge.
D. The leading edge is thinner and less rounded than the trailing edge.
E. The leading edge is fatter and less rounded than the trailing edge.
A
Correct Answer: A
Explanation:
A. The leading edge is fatter and more rounded than the trailing edge.
23
Q
During the daytime, the VASI system is effective up to a distance of
A. 20 miles
B. 5 miles
C. 10 miles
D. 15 miles
E. 25 miles
A
Correct Answer: B
Explanation:
B. 5 miles
24
Q
When a pilot angles the nose of a plane downwards, the wings generate
A. Higher levels of thrust
B. Lower levels of thrust
C. Lower levels of lift
D. Higher levels of lift
E. No change in lift or thrust
A
Correct Answer: C
Explanation:
C. Lower levels of lift. This maneuver is used during descents accordingly.
25
Which of the following pairs are considered viable powerplants for airplanes?
A. Rudders and propellers
B. Engines and rudders
C. Engines and throttles
D. Propellers and throttles
E. Engines and propellers
Correct Answer: E
Explanation:
E. Engines and propellers. Engines are the normal source of power on modern planes, but propellers are viable powerplants as well.
26
Translational lift occurs for a helicopter when it is
A. In forward flight
B. Hovering
C. Descending
D. Spinning
E. Taking off
Correct Answer: A
Explanation:
A. In forward flight. Translational lift results in greater efficiency of a plane's rotors.
27
An increase in density in the air a plane flies through results in
A. An increase in drag and a decrease in lift
B. A decrease in drag and an increase in lift
C. An increase in both drag and lift
D. A decrease in both drag and lift
E. A non-linear impact on drag and lift
Correct Answer: C
Explanation:
C. An increase in both drag and lift. The atmospheric pressure acting on a plane requires different actions from the pilot depending on circumstance.
28
An airplane travelling in the same direction as the wind experiences
A. Higher levels of drag
B. Lower levels of lift and higher levels of drag
C. Higher levels of lift and lower levels of drag
D. Lower levels of lift and drag
E. Higher levels of lift and drag
Correct Answer: D
Explanation:
D. Lower levels of lift and drag. A plane's journey time can be reduced in such conditions.
29
A plane's yaw motion is primarily controlled by the
A. Joystick
B. Elevators
C. Ailerons
D. Cyclic
E. Rudder
Correct Answer: E
Explanation:
E. Rudder.
30
A plane's yaw motion is primarily controlled by the
A. Joystick
B. Elevators
C. Ailerons
D. Cyclic
E. Rudder
Correct Answer: E
Explanation:
E. Rudder.
31
When raised elevators push down on the tail of an aircraft, what effect does that have on the aircraft?
A. The ailerons automatically extend simultaneously.
B. The nose of the aircraft lowers.
C. The nose of the aircraft rises.
D. The aircraft veers left.
E. The aircraft veers right.
Correct Answer: C
Explanation:
(C) is correct. When the elevators are raised, the tail of the aircraft is pushed down, which increases the pitch and
32
Which aircraft component(s) affect yaw?
A. the ailerons
B. the elevators
C. the rudder
D. the spoilers
E. the wings
Correct Answer: C
Explanation:
(A) is incorrect. The ailerons affect the longitudinal axis of the aircraft during turns.
(B) is incorrect. The elevators affect pitch.
(C) is correct. The rudder affects yaw; it controls the vertical axis of the aircraft.
(D) is incorrect. The spoilers reduce lift, increase drag, and control speed.
(E) is incorrect. The position of the wings adjusts the airflow pressure, controlling lift and drag.
33
What part of a rotary-wing aircraft makes directional control possible?
A. the teeter hinge
B. the swashplate
C. the ducted fan
D. the tail boom
E. the skids
Correct Answer: B
Explanation:
(A) is incorrect. The teeter hinge allows the blades to flap.
(B) is correct. The swashplate allows for directional movement of the aircraft.
(C) is incorrect. The ducted fan is a component of the NOTAR aircraft design.
(D) is incorrect. The tail boom is a structural component that supports the tail rotor assembly.
(E) is incorrect. The skids are used as landing gear for rotary-wing aircraft.
34
Which type of climb produces the most altitude in a given distance?
A. a best angle of climb
B. a best rate of climb
C. a normal climb
D. a shallow climb
E. a steep climb
Correct Answer: A
Explanation:
(A) is correct. This climb is used to clear obstacles that may be in the flight path.
(B) is incorrect. This climb is used to cover the most distance, not the most altitude.
(C) is incorrect. This climb will not produce the greatest altitude.
(D) is incorrect. This is not a type of climb.
(E) is incorrect. This is not a type of climb.
35
What causes a rotary-wing aircraft to drift laterally due to tail rotor thrust?
A. a coaxial rotor system
B. translating tendency
C. gyroscopic precession
D. the tail rotor
E. translational lift
Correct Answer: B
Explanation:
(A) is incorrect. A coaxial rotor system cancels torque effect by using counter rotating rotor heads.
(B) is correct. Translating tendency causes a rotary-wing aircraft to drift laterally due to tail rotor thrust.
(C) is incorrect. Gyroscopic precession is when a force input is applied yet the force output is felt 90 degrees later in the plane of rotation.
(D) is incorrect. The tail rotor cancels out the torque effect.
(E) is incorrect. An effective translational lift results from increased efficiency of the main rotor system as directional flight is established.
36
If the cyclic or control wheel in a helicopter is moved forward
A. the aircraft pitch changes.
B. the airspeed decreases.
C. the airspeed increases.
D. the airspeed increases and the pitch changes.
E. the aircraft tends to yaw.
Correct Answer: D
Explanation:
(A) is incorrect. The aircraft pitch would indeed change; however, this is not the best complete answer.
(B) is incorrect. The airspeed would increase and the nose of the aircraft would pitch downward.
(C) is incorrect. The airspeed would indeed increase due to the change of airflow around the wings caused by the cyclic or control wheel; however, this is not the best answer.
(D) is correct. This is the best answer because it describes the combination of changes to the aircraft.
(E) is incorrect. Changes in the foot pedals control the rudder, which affects any yawing of an aircraft.
37
If the airspeed indicator needle is in the yellow and approaching the red line during a maneuver, what would be the correct response?
A. change attitude by 90 degrees
B. decrease altitude
C. decrease airspeed
D. increase airspeed
E. increase thrust
Correct Answer: C
Explanation:
(A) is incorrect. A change of heading would not reduce airspeed.
(B) is incorrect. Decreasing altitude will result in an initial higher airspeed.
(C) is correct. Approaching the red line means the aircraft is reaching the maximum airspeed for the aircraft.
(D) is incorrect. Increasing airspeed will exceed the maximum airspeed of the aircraft.
(E) is incorrect. Increasing thrust will increase airspeed to an excess level if all other forces remain the same.
38
In aviation terminology, rate of climb is expressed as
A. AGL
B. degrees
C. fpm
D. knots
E. MSL
Correct Answer: C
Explanation:
(A) is incorrect. Above ground level (AGL) is an altitude measurement.
(B is incorrect. Degrees are used in directional headings.
(C) is correct. Feet per minute (fpm) describes a rate of climb.
(D) is incorrect. Airspeed is measured in knots.
(E) is incorrect. Mean sea level (MSL) is an altitude measurement.
39
Which statement is true about lag and trend information?
A. Lag is the same as trend information.
B. Lag displays real-time movement of the aircraft.
C. Both lag and trend information display real-time movement of the aircraft.
D. Trend information displays real-time movement of the aircraft.
E. Trend information does not display real-time movement of the aircraft.
Correct Answer: D
Explanation:
(A) is incorrect. Lag has a delay of 6 to 9 seconds; trend information is in real time.
(B) is incorrect. Lag has a delay of 6 to 9 seconds.
(C) is incorrect. Although trend information is in real time, lag is not.
(D) is correct. Trend information displays in real time in relation to the movement of the cyclic.
(E) is incorrect. Trend information does display in real time.
40
The lateral axis of an aircraft controls which of the following?
A. adverse yaw
B. banks
C. pitch
D. roll
E. yaw
Correct Answer: C
Explanation:
(A) is incorrect. The rudder controls adverse yaw.
(B) is incorrect. The wings and ailerons control bank.
(C) is correct. The lateral axis controls pitch when the nose moves up and down.
(D) is incorrect. The longitudinal axis controls roll.
(E) is incorrect. The vertical axis controls yaw.
41
Which component allows the rotor blades to feather?
A. the teeter hinge
B. the rotor hub
C. the blade grips
D. the skids
E. the pitch horn
Correct Answer: C
Explanation:
(A) is incorrect. The teeter hinge allows the blades to flap.
(B) is incorrect. The rotor hub is the center attachment point for the rotor head components.
(C) is correct. The blade grips allow the main rotor blades to feather.
(D) is incorrect. The skids are used as landing gear for rotary-wing aircraft.
(E) is incorrect. The pitch horn couples the blade cuff to the pitch links.
42
Which of the following is expressed in degrees that include the area between the direction of the wind and the chord of the aircraft wing?
A. AOA
B. the artificial horizon
C. the lower limits of the vertical speed indicator
D. the pressure altitude
E. a stall
Correct Answer: A
Explanation:
(A) is correct. The angle of attack (AOA) is the angle between the chord (pitch) of the aircraft wing and the direction of relative wind.
(B) is incorrect. The artificial horizon is the line that represents the horizon of the earth and the aircraft attitude on the attitude indicator.
(C) is incorrect. The minimum limits of aircraft performance are shown on the vertical speed indicator.
(D) is incorrect. The pressure altitude is displayed on the altimeter when the setting window is adjusted to 29.92 Hg.
(E) is incorrect. A stall is when aircraft airspeed experiences decreased lift and lower airspeed, causing the AOA to be exceeded.
43
When entering and exiting Class C controlled airspace, which statement is true regarding airspace clearance?
A. The ATC must acknowledge the pilot by responding with the aircraft's call sign for communication to be considered established.
B. An ATC response of only "Standby" is enough to establish approval for entry to the controlled airspace.
C. No approval for clearance is needed.
D. Only jets flying faster than 200 mph need to request or receive approval for clearance.
E. A pilot does not need approval to exit Class C airspace.
Correct Answer: A
Explanation:
(A) is correct. The pilot must be acknowledged with the aircraft call sign to establish communications.
(B) is incorrect. This is true for Class C and D controlled airspaces but not true for Class B airspace.
(C) is incorrect. Approval for clearance is required for Class A through D controlled airspaces.
(D) is incorrect. When aircraft clearances are required, it applies to all types of aircraft.
(E) is incorrect. If clearance is required for entering an airspace, clearance is also required for exiting it.
44
If there is no increase in thrust, which action would result in an ultimate stall?
A. descending to a lower altitude
B. decreasing pitch
C. extending the ailerons and flaps
D. increasing pitch
E. turning the rudder to the left or right
Correct Answer: D
Explanation:
(A) is incorrect. This would increase airspeed.
(B) is incorrect. This would increase airspeed.
(C) is incorrect. Extending the ailerons and flaps would decrease thrust, but this is done during landing to slow the aircraft.
(D) is correct. When increasing pitch, thrust must be increased to provide lift and maintain vertical speed or a stall will result.
(E) is incorrect. The rudder has no effect on thrust.
45
What one of the acronyms below for all-up weight defined as the total aircraft weight at any given moment during flight?
A. AGW
B. MLW
C. MRW
D. MTOW
E. OEW
Correct Answer: A
Explanation:
(A) is c orrect. This is the acronym for aircraft gross weight, also known as all-up weight (AUW). This weight changes during the flight due to consumables (i.e., oil and fuel).
(B) is incorrect. This is the acronym for maximum landing weight.
(C) is incorrect. This is maximum ramp weight.
(D) is incorrect. This is maximum takeoff weight.
(E) is incorrect. This is operating empty weight.
46
What types of turns require the pilot to input aileron pressure to return the aircraft to level flight?
A. all turns
B. medium and shallow turns
C. a shallow turn
D. medium and steep turns
E. a trimmed turn
Correct Answer: D
Explanation:
(A) is incorrect. A shallow turn is less than 20 degrees and does not need aileron pressure to return the aircraft to level flight, unlike medium and steep turns.
(B) is incorrect. While medium turns do require aileron pressure to return the aircraft to level flight, a shallow turn is less than 20 degrees and does not need aileron pressure to return the aircraft to level flight.
(C) is incorrect. A shallow turn is less than 20 degrees and does not need aileron pressure to return the aircraft to level flight.
(D) is correct. These turns are between 20 and 45 degrees and greater than a 45-degree bank. The pilot inputs aileron pressure to return the aircraft to level flight for both of these types of turns.
(E) is incorrect. There is no such turn.
47
What aerodynamic principle describes the unequal lifting forces of the rotor system due to the advancing and retreating blades?
A. weight, lift, thrust, and drag
B. translational lift
C. dissymmetry of lift
D. gyroscopic precession
E. autorotation
Correct Answer: C
Explanation:
(A) is incorrect. Weight, lift, thrust, and drag must be in balance in order to hover.
(B) is incorrect. An effective translational lift results from increased efficiency of the main rotor system as directional flight is established.
(C) is correct. Advancing and retreating blades of the rotor system generate unequal lifting forces: a dissymmetry of lift.
(D) is incorrect. Gyroscopic precession is when a force input is applied yet the force output is felt 90 degrees later in the plane of rotation.
(E) is incorrect. Autorotation is when the rotor blades are driven by relative wind rather than by the aircraft's powerplant.
48
What flight control maintains the engine within optimal flight parameters?
A. the cyclic
B. the collective
C. the tail rotor pedals
D. translating tendency
E. the throttle
Correct Answer: E
Explanation:
(A) is incorrect. The cyclic controls the pitch and roll axis of the aircraft.
(B) is incorrect. The collective changes the pitch of the blades simultaneously.
(C) is incorrect. The tail rotor pedals control the yaw axis of the aircraft.
(D) is incorrect. Translating tendency causes a rotary-wing aircraft to drift laterally due to tail rotor thrust.
(E) is correct. The throttle maintains the engine within optimal flight parameters.
49
Which statement describes absolute altitude?
A. This is the altitude displayed on the altimeter.
B. The altimeter displays this altitude when the setting window reads 29.92 Hg.
C. This is the pressure altitude corrected for variations from standard temperature.
D. This is the vertical distance above MSL.
E. This is the vertical distance AGL.
Correct Answer: E
Explanation:
(A) is incorrect. This describes indicated altitude.
(B) is incorrect. This describes pressure altitude.
(C) is incorrect. This describes density altitude.
(D) is incorrect. This describes true altitude.
(E) is correct. Absolute altitude is indeed the height above ground level (AGL).
50
What is the unit of measure for airspeed?
A. AOA
B. degrees
C. knots
D. MSL
E. rate of climb
Correct Answer: C
Explanation:
(A) is incorrect. AOA is the angle between the direction of the airflow and the chord on a wing—the imaginary reference line that extends from the leading edge to the trailing edge.
(B) is incorrect. A degree is the directional measurement for an aircraft.
(C) is correct. Airspeed is measured in knots.
(D) is incorrect. Mean sea level (MSL) is an altitude measurement.
(E) is incorrect. Rate of climb is a type of climb performed to navigate above obstacles during takeoff.
51
When the cyclic in a helicopter is pushed forward, what effect does that have on the rudder?
A. The rudder extends outward.
B. It has no effect.
C. The rudder shifts to the left.
D. The rudder shifts to the right.
E. The rudder tilts upward.
Correct Answer: B
Explanation:
(A) is incorrect. The rudder does not extend outward, and it is controlled by the foot pedals, not by the cyclic.
(B) is correct. The cyclic does not control the rudder.
(C) is incorrect. The rudder does not shift from input to the cyclic.
(D) is incorrect. The rudder does not shift from input to the cyclic.
(E) is incorrect. The rudder does not move up and down.
52
Which aircraft component(s) affect roll?
A. the ailerons
B. the ailerons and the spoilers
C. the elevators
D. the rudder
E. the rudder and the elevators
Correct Answer: B
Explanation:
(A) is incorrect. The ailerons affect roll along the longitudinal axis of the aircraft, but so do the spoilers, so this is not the best answer.
(B) is correct. Both the ailerons and the spoilers affect the roll of an aircraft, so this is the best answer.
(C) is incorrect. The elevators control pitch along the lateral axis of the aircraft.
(D) is incorrect. The rudder affects the vertical axis of the aircraft.
(E) is incorrect. Neither component affects the roll of an aircraft.
53
Which type of climb is made with the maximum power available?
A. a best angle of climb
B. a best rate of climb
C. a medium climb
D. a normal climb
E. a steep climb
Correct Answer: B
Explanation:
(A) is incorrect. This climb is used to clear obstacles in the flight path.
(B) is correct. This climb is used to reach the greatest altitude over a given amount of time, requiring maximum power.
(C) is incorrect. This is not a type of climb.
(D) is incorrect. This climb is not used with maximum power.
(E) is incorrect. This is not a type of climb.
54
What type of helicopter design uses a ducted fan in place of a tail rotor to cancel torque effect?
A. the coaxial rotor system
B. the NOTAR
C. the tandem rotor system
D. the semi-monocoque
E. the skids
Correct Answer: B
Explanation:
(A) is incorrect. The coaxial rotor system cancels torque effect by using counter-rotating rotor heads.
(B) is correct. The NOTAR design uses a ducted fan to vector air out of the tail to cancel torque effect.
(C) is incorrect. The tandem rotor system cancels torque effect through the use of counter-rotating rotor heads.
(D) is incorrect. The term semi-monocoque refers to a fuselage type that utilizes longitudinal reinforcement to add strength.
(E) is incorrect. The skids are used as landing gear for rotary-wing aircraft
55
When an aircraft is approaching to land, the leading and trailing edges of its flaps are extended to create the following force(s).
A. a decrease in drag
B. a decrease in lift
C. an increase in airspeed
D. an increase in airspeed and drag
E. maximum lift and high drag
Correct Answer: E
Explanation:
(A) is incorrect. The airflow over and around the extended wings causes an increase in drag.
(B) is incorrect. On an approach to land, since airspeed is decreased, maximum lift is required to keep the aircraft airborne until touchdown.
(C) is incorrect. An aircraft must decrease airspeed when approaching to land.
(D) is incorrect. Although high drag is created, an increase in airspeed is not created.
(E) is correct. Since airspeed is decreased, maximum lift is required plus high drag to slow the aircraft.
56
When flying a helicopter, what response should be taken if the rpm is low and the manifold pressure is high?
A. increase the throttle
B. lower the collective pitch
C. move the cyclic forward
D. raise the collective pitch
E. reduce the throttle
Correct Answer: B
Explanation:
(A) is incorrect. Increasing the throttle increases manifold pressure.
(B) is correct. This decreases the manifold pressure, which in turn increases rpm.
(C) is incorrect. Cyclic movement does not affect manifold pressure.
(D) is incorrect. This increases manifold pressure and decreases rpm.
(E) is incorrect. This decreases rpm and manifold pressure.
57
Which aerodynamic force(s) must a rotary-wing aircraft balance in order to hover?
A. weight, lift, thrust, and drag
B. translational lift
C. dissymmetry of lift
D. gyroscopic precession
E. autorotation
Correct Answer: A
Explanation:
(A) is correct. Weight, lift, thrust, and drag must be in balance in order to hover.
(B) is incorrect. An effective translational lift results from increased efficiency of the main rotor system as directional flight is established.
(C) is incorrect. Dissymmetry of lift is the unequal lifting of forces created by the advancing and retreating blades.
(D) is incorrect. Gyroscopic precession is when a force input is applied yet the force output is felt 90 degrees later in the plane of rotation.
(E) is incorrect. Autorotation is when the rotor blades are driven by relative wind rather than by the aircraft's powerplant.
58
If the ball on the turn and slip indicator is to the left or right, which flight control will return it to the center?
A. the cyclic or control wheel
B. the foot pedals
C. the pitot tube
D. resetting the altimeter
E. the throttle
Correct Answer: B
Explanation:
(A) is incorrect. This would increase or decrease the pitch, not move the ball to the center.
(B) is correct. The foot pedals control the rudder, which moves the aircraft left or right.
(C) is incorrect. The pitot tube measures airspeed and has no impact on changing the pitch of an aircraft.
(D) is incorrect. This would only adjust the barometric pressure for an altitude indicator.
(E) is incorrect. This would increase power from the engine; it would not change the direction to center the ball.
59
Empennage refers to the
A. fuselage
B. landing gear section
C. propellers or rotor blades
D. tail section
E. wings
Correct Answer: D
Explanation:
(A) is incorrect. The fuselage includes the crew, passenger, and cargo areas.
(B) is incorrect. The tail section is separate from the landing gear section.
(C) is incorrect. These are not part of the tail section, the empennage.
(D) is correct. The tail section is known as the empennage.
(E) is incorrect. The wings are not part of the empennage.
60
What part of the aircraft structure supports the tail rotor?
A. the teeter hinge
B. the swashplate
C. the ducted fan
D. the tail boom
E. the skids
Correct Answer: D
Explanation:
(A) is incorrect. The teeter hinge allows the blades to flap.
(B) is incorrect. The swashplate allows for directional movement of the aircraft.
(C) is incorrect. The ducted fan is a component of the NOTAR aircraft design.
(D) is correct. The tail boom is a structural component that supports the tail rotor assembly.
(E) is incorrect. The skids are used as landing gear for rotary-wing aircraft.
61
Which is NOT considered part of the secondary flight control system?
A. the flaps
B. the leading edge devices
C. the rudder
D. the spoilers
E. the trim tabs
Correct Answer: C
Explanation:
(A) is incorrect. The flaps are part of the secondary flight control system.
(B) is incorrect. The leading edge devices are also part of the secondary flight control system.
(C) is correct. The rudder is part of the primary flight control system.
(D) is incorrect. The spoilers are part of the secondary flight control system too.
(E) is incorrect. The trim tabs are also part of the secondary flight control system.
62
Which is NOT considered part of the secondary flight control system?
A. the flaps
B. the leading edge devices
C. the rudder
D. the spoilers
E. the trim tabs
Correct Answer: C
Explanation:
(A) is incorrect. The flaps are part of the secondary flight control system.
(B) is incorrect. The leading edge devices are also part of the secondary flight control system.
(C) is correct. The rudder is part of the primary flight control system.
(D) is incorrect. The spoilers are part of the secondary flight control system too.
(E) is incorrect. The trim tabs are also part of the secondary flight control system.
63
If magnetic north is a positive 15-degree variation (west) from true north, to convert true north to magnetic north when flying eastbound, what is the adjustment a pilot must make to the magnetic compass?
A. add 7.5 degrees
B. add 15 degrees
C. add 345 degrees
D. subtract 15 degrees
E. subtract 345 degrees
Correct Answer: B
Explanation:
(A) is incorrect. Do not halve the degree of variation.
(B) is correct. "East is least, west is best." The adjustment is a 15-degree west variation.
(C) is incorrect. Do not take the difference from 360 degrees to determine variation.
(D) is incorrect. "East is least, west is best." Subtract for an easterly variation, and add for a westerly variation.
(E) is incorrect. Do not take the difference from 360 degrees to determine variation.
64
What direction will induced flow move during an autorotation?
A. horizontally
B. backward
C. parallel to the plane of rotation
D. to the right
E. vertically
Correct Answer: E
Explanation:
(A) is incorrect. The induced flow will not move horizontally.
(B) is incorrect. The induced flow will not move backward.
(C) is incorrect. The induced flow will not move parallel to the plane of rotation.
(D) is incorrect. The induced flow will not move to the right.
(E) is correct. Induced flow, also known as downwash, moves vertically up through the rotor system.
65
What item was developed to reduce compass reading errors?
A. a heading indicator
B. low latitude charts
C. a three-pointer compass
D. sectional charts
E. a vertical card compass
Correct Answer: E
Explanation:
(A) is incorrect. Compasses are used when the heading indicator fails.
(B) is incorrect. These do not correct in-flight compass reading errors.
(C) is incorrect. This compass has inherent errors.
(D) is incorrect. These do not correct in-flight compass reading errors.
(E) is correct. This compass was developed to reduce reading errors.
66
Which is true in right-of-way protocol?
A. Any aircraft in distress always has the right-of-way.
B. Hot-air balloons always have the right-of-way over other aircraft.
C. Jets always have the right-of-way.
D. Powered parachutes always have the right-of-way.
E. The right-of-way protocol applies only in controlled airspaces .
Correct Answer: A
Explanation:
(A) is correct. Aircraft in distress always have the right-of-way over other aircraft.
(B) is incorrect. Hot-air balloons do not always have the right-of-way.
(C) is incorrect. Jets do not always have the right-of-way.
(D) is incorrect. Powered parachutes do not always have the right-of-way.
(E) is incorrect. The right-of-way protocol applies to both controlled and uncontrolled airspaces.
67
Which instrument indicates if an aircraft is in a climb, in a descent, or in level flight?
A. an altimeter
B. a heading indicator
C. a magnetic compass
D. a vertical card compass
E. a vertical speed indicator
Correct Answer: E
Explanation:
(A) is incorrect. This instrument displays the altitude.
(B) is incorrect. This instrument displays the heading (degrees) of the aircraft.
(C) is incorrect. This instrument is used as a backup if the heading indicator fails.
(D) is incorrect. This instrument displays the heading of the aircraft.
(E) is correct. This instrument will indeed display if the aircraft is in a climb, in a descent, or in level flight.
68
What defines unusable fuel?
A. fuel contaminated with oils
B. fuel in the tanks at delivery of an aircraft by the manufacturer
C. fuel not used (leftover) from any flight
D. fuel that cannot get to the engine
E. fuel spills
Correct Answer: D
Explanation:
(A) is incorrect. Aircraft cannot fly with contaminated fuel.
(B) is incorrect. Aircraft manufacturers deliver their aircraft with the tanks empty.
(C) is incorrect. This fuel is usable fuel.
(D) is c orrect. This is fuel that cannot be used and cannot be drained from the tanks.
(E) is incorrect. Fuel spills are not considered unusable fuel as such.
69
If the cyclic is moved forward, in which direction will the helicopter move?
A. forward
B. backward
C. in circles
D. left
E. the nose will pitch up
Correct Answer: A
Explanation:
(A) is correct. The aircraft moves forward when the cyclic is pushed forward.
(B) is incorrect. The aircraft will not move backward.
(C) is incorrect. The aircraft will not spin in circles.
(D) is incorrect. The aircraft will not turn left.
(E) is incorrect. The nose of the aircraft will not pitch up
70
What gives the pilot control over the yaw axis of the aircraft?
A. the cyclic
B. the collective
C. the tail rotor pedals
D. translating tendency
E. the throttle
Correct Answer: C
Explanation:
(A) is incorrect. The cyclic controls the pitch and roll axis of the aircraft.
(B) is incorrect. The collective changes the pitch of the blades simultaneously.
(C) is correct. The tail rotor pedals control the yaw axis of the aircraft.
(D) is incorrect. Translating tendency causes a rotary-wing aircraft to drift laterally due to tail rotor thrust.
(E) is incorrect. The throttle maintains the engine within optimal flight parameters.
71
The altitude measured AGL is called ______________.
A. absolute altitude
B. density altitude
C. indicated altitude
D. pressure altitude
E. true altitude
Correct Answer: A
Explanation:
(A) is correct. Absolute altitude is measured above ground level (AGL).
(B) is incorrect. Density altitude is pressure altitude modified for a nonstandard temperature.
(C) is incorrect. Indicated altitude is the current altitude displayed on an altimeter.
(D) is incorrect. Pressure altitude is an indicated altitude determined with a standard atmosphere level setting of 29.92 Hg.
(E) is incorrect. True altitude is measured from mean sea level (MSL).
72
What altitude is displayed on the aircraft altimeter?
A. Radar
B. Density
C. Calibrated
D. Above Ground Level
E. Pressure
Correct Answer: E
73
What occurs as a result of a forward center of gravity?
A. Difficulty applying downward pitch
B. Decreased stability
C. Longer range
D. Difficulty applying upward pitch
E. Decreased roll responsiveness
Correct Answer: D
74
What type of environmental condition(s) yields the greatest aircraft performance?
A. Sea level and cold
B. High altitude and cold
C. High altitude and hot
D. Sea level and hot
E. Humid
Correct Answer: A
75
Describe how to recover from a stall…
A. Decrease power and increase pitch
B. Increase power and increase pitch
C. Decrease pitch and increase power
D. Decrease pitch and decrease power
E. Increase power and add left or right rudder
Correct Answer: C
76
Dead Reckoning navigation involves…
A. Using landmarks to pinpoint position
B. Using VORs and TACANs to pinpoint position
C. Utilizing a previously known position and using time and distance equations to estimate present position
D. GPS to estimate position
E. Determining position by only using a compass
Correct Answer: C
77
In flight, the rudder controls…
A. Pitch
B. Yaw
C. Roll
D. Power
E. Speed
Correct Answer: B
78
What effect do flaps have on landing distance?
A. Decrease
B. None
C. Increase
D. Decrease on wet runways only
E. Increase on wet runways only
Correct Answer: A
79
When the aircraft yoke or control wheel is moved to the right, what happens to the right aileron?
A. Remains neutral
B. Moves upward
C. Moves downward
D. Initially moves upwards then downwards
E. Initially moves downwards then upwards
Correct Answer: B
80
How does ice accumulated on the aircraft's wings affect the stall speed?
A. No effect
B. Decrease
C. Decrease at high altitude
D. Decrease at low altitude
E. Increase
Correct Answer: E
81
What conditions are conducive to fog formation?
A. High temperature-dew point spread and high winds
B. Dry desert areas and high winds
C. Thunderstorms nearby and calm winds
D. Low temperature-dew point spread and calm winds, especially in low lying valleys and coastal areas
E. Hurricanes and high winds
Correct Answer: D
82
In straight and level flight with the autopilot disengaged, after adding power or thrust the aircraft will…
A. Descend
B. Remain level
C. Climb
D. Roll to the right
E. Roll to the left
Correct Answer: C
83
What type of aircraft has the most severe wake turbulence?
A. Heavy, slow, gear up, flaps up
B. Light, slow, gear up, flaps up
C. Heavy, fast, gear down, flaps deployed
D. Light, fast, gear down, flaps deployed
E. Heavy, fast, gear down, flaps up
Correct Answer: A
84
What must be done to maintain altitude in a turn?
A. Nothing
B. Decrease pitch
C. Decrease power
D. Add rudder
E. Increase pitch
Correct Answer: E
85
What flight control is used to mitigate adverse yaw in a turn?
A. Aileron
B. Spoilers
C. Flaps
D. Rudder
E. Aileron trim
Correct Answer: D
86
Air Traffic Control orders a pilot discretion descent from 12000￠ to meet a 3000￠ crossing restriction. Using a 3 degree descent profile, how far away from the 3000￠ constraint must the descent be initiated?
A. 5 miles
B. 10 miles
C. 20 miles
D. 30 miles
E. 38 miles
Correct Answer: D
87
In calm winds, what happens to fuel consumption as the aircraft climbs?
A. No change
B. Decreases
C. Increases
D. Increases up to 10,000￠ then decreases
E. Decreases up to 5,000￠ then increases
Correct Answer: B
88
What effect does a tailwind have on takeoff distance?
A. None
B. Decreases
C. Increases
D. Decreases on contaminated runways only
E. Increases on contaminated runways only
Correct Answer: C
89
What is the best airspeed for maximum fuel endurance?
A. Maximum lift and lowest drag known as L/D Max
B. Minimum lift and highest drag known as L/D Max
C. Maximum lift and highest drag known as Vne
D. Just above aircraft stall speed
E. Maximum lift and lowest drag known as Vn
Correct Answer: A
90
When is the magnetic compass most accurate?
A. Climb
B. Descent
C. Straight and level flight
D. Right turn
E. Left turn
Correct Answer: C
91
An aircraft has a ground speed of 120 knots. How long will it take to travel 20 nautical miles?
A. 1 minute
B. 2 minutes
C. 5 minutes
D. 10 minutes
E. 30 minutes
Correct Answer: D
92
Which of the following will create lift?
A. Airflow against the tail section of the aircraft
B. Faster flow of air over the wing than beneath it
C. Raised ailerons
D. Helium in the wings
E. Thrust from the engine
Correct Answer: B
93
Which of the following axes is controlled by ailerons?
A. Lateral
B. Longitudinal
C. Vertical
D. Equatorial
E. Felling axes
Correct Answer: B
94
Which of the following axes is controlled by elevators?
A. Lateral
B. Longitudinal
C. Vertical
D. Equatorial
E. All of the above
Correct Answer: A
95
Which of the following axes is controlled by a rudder?
A. Lateral
B. Longitudinal
C. Vertical
D. Equatorial
E. None of the above
Correct Answer: C
96
Which of the following is not a secondary or auxiliary flight control?
A. Flap
B. Spoiler
C. Aileron
D. Slat
E. All of the abov
Correct Answer: C
97
What component is not part of an empennage?
A. Stabilizer
B. Rudder
C. Elevator
D. Truss
E. Slats
Correct Answer: E
98
Which of the following is not a type of landing gear?
A. Ski
B. Skate
C. Skid
D. Float
E. Pontoon
Correct Answer: B
98
Which is not a type of fuselage?
A. Monocoque
B. Semicoque
C. Semi-Monocoque
D. Truss
E. None of the above
Correct Answer:
99
Who should be the most concerned about an aircraft's flight envelope?
A. The pilot
B. Air traffic controller
C. Passengers
D. Aircraft mechanic
E. People on the ground
Correct Answer: A
Explanation:
The pilot. To ensure an aircraft is being operated properly, a pilot needs to be familiar with the aircraft's flight envelope before flying.
100
What is the minimum speed at which an aircraft can maintain level flight?
A. Ceiling speed
B. Cruising speed
C. Stalling speed
D. Mach 1
E. Gliding speed
Correct Answer: C
Explanation:
Stalling speed. The stalling speed is the minimum speed at which an aircraft can maintain level flight. As the aircraft gains altitude, the stall speed increases, since the aircraft's weight can be better supported through speed.
100
What is the maximum operating altitude for a design of an aircraft?
A. Stratosphere roof
B. Service ceiling
C. Stratosphere ceiling
D. Overhead ceiling
E. Upper limit
Correct Answer: B
Explanation:
Service ceiling. The maximum altitude of an aircraft is also referred to as the service ceiling. The ceiling is usually decided by the aircraft performance and the wings and is where an altitude at a given speed can no longer be increased at level flight.
101
Which of the following is another word for aerodynamic friction or wind resistance?
A. Lift
B. Gravity
C. Thrust
D. Drag
E. Stall
Correct Answer: D
Explanation:
Drag. Drag is the force generated when aircraft is moving through the air. Drag is air resistance that opposes thrust, basically aerodynamic friction or wind resistance. The amount of drag is dependent upon several factors, including the shape of the aircraft, the speed it is traveling, and the density of the air it is passing through.
102
What is the purpose of the horizontal stabilizer?
A. Pushes the tail left or right in line with the aircraft
B. Levels the aircraft in flight
C. Controls the roll of an aircraft
D. Decreases speed for landing
E. Decreases speed in a turn
Correct Answer: B
Explanation:
Levels the aircraft in flight. The horizontal stabilizer provides for leveling of aircraft in flight. If the aircraft tilts up or down, air pressure increases on one side of the stabilizer and decreases on the other. This imbalance on the stabilizer will push the aircraft back into level flight. The horizontal stabilizer holds the tail down as well, since most aircraft designs induce the tendency of the nose to tilt downward because the center of gravity is forward of the center of lift in the wings.
103
Where are ailerons located?
A. The trailing edge of a rudder
B. The outer leading edge of a wing
C. The outer trailing edge of a wing
D. The inner trailing edge of a wing
E. The empennage
Correct Answer: C
Explanation:
The outer trailing edge of the wing. Ailerons are located on the outer trailing edges of the wings and control the roll of an aircraft.
104
What occurs when the induced drag on an aircraft exceeds its lift?
A. Roll
B. Yaw
C. Pitch
D. Stall
E. Gravity
Correct Answer: D
Explanation:
Stall. An aircraft stall occurs at the critical Angle of Attack (AOA), where the induced drag exceeds the lift. During a stall, the wing is no longer able to create sufficient lift to oppose gravity. Stall angle is usually around 20°.
105
Which is not considered to be one of the four fundamental flight maneuvers?
A. Landing
B. Straight and level
C. Turns
D. Descent
E. Climbing
Correct Answer: A
Explanation:
Landing. There are four fundamental maneuvers in flight: straight-and-level, turns, climbs, and descents. Every controlled flight usually includes a combination of these four fundamentals.
106
What force acting upon a helicopter attempts to turn the body of the helicopter in the opposite direction of the main rotor travel?
A. Gyroscopic precession
B. Centrifugal force
C. Torque
D. Coriolis effect
E. Centripetal force
Correct Answer: C
Explanation:
Torque. Torque from the engine turning the main rotor forces the body of the helicopter in the opposite direction. Most helicopters use a tail rotor, which counters this torque force by pushing or pulling against the tail.
107
What is used to increase the pitch of the main rotor at the same time at all points of the rotor blade rotation?
A. Cyclic control
B. Collective control
C. Coriolis control
D. Symmetry control
E. Anti-torque control
Correct Answer: B
Explanation:
Collective control. The collective control is used to increase the pitch of the main rotor simultaneously at all points of the rotor blade rotation. The collective increases or decreases total rotor thrust; the cyclic changes the direction of rotor thrust. In forward flight, the collective pitch changes the amount of thrust, which in turn can change the speed or altitude based on the use of the cyclic. During hovering, the collective pitch will alter the hover height.
108
Visual approach slope indicators are visible from what distance during clear, daylight hours?
A. 1-2 miles away
B. 3-5 miles away
C. 5-10 miles away
D. 10-20 miles away
E. 20-25 miles away
Correct Answer: B
Explanation:
3-5 miles away. Visual approach slope indicator (VASI) is a light system designed to provide visual guidance during approach of a runway. The light indicators are visible 3-5 miles away during daylight hours and up to 20 miles away in darkness. The indicators are designed to be used once the aircraft is already visually aligned with the runway.
109
Non-precision instrument runways provide what kind of guidance?
A. Horizontal
B. Vertical
C. Locational
D. Directional
E. Multi-directional
Correct Answer: A
Explanation:
Horizontal. Non-precision instrument runways provide horizontal guidance only when there is an approved procedure for a straight-in non-precision instrument approach.
110
Which of the following aerodynamic forces limits flight?
A. Lift
B. Drag
C. Weight
D. Thrust
E. Power
Correct Answer: C
Explanation:
Weight limits flight, as gravity constantly pulls an aircraft back down to the ground. As such, the thrust (Choice ), which is sometimes called power (Choice ), must be sufficient to propel the weight of the aircraft off the ground to achieve lift (Choice ), which is the force that keeps the aircraft in the air. Drag (Choice ) is a resisting, but not a limiting, force. It runs parallel to the object in motion, trying to push the object back, while weight pulls the object down.
111
Moving about the longitudinal access of the aircraft is termed
A. Bank
B. Pitch
C. Skid
D. Slip
E. Yaw
Answer: A aviation terminology to bank is to roll about the longitudinal access of the aircraft
112
Moving about the longitudinal access of the aircraft is termed
A. Bank
B. Pitch
C. Skid
D. Slip
E. Yaw
Answer: A aviation terminology to bank is to roll about the longitudinal access of the aircraft
113
Which of the following does not affect density altitude?
A. Altitude
B. Atmospheric pressure.
C. Moisture content of air.
D. Temperature.
E. Wind velocity
The correct answer is E. Density altitude pertains to a theoretical air density that exist standard conditions at given altitude the four factors that affect density altitude are altitude, atmospheric pressure, temperature, temperature, and moisture content of the air.
114
The lifting power for dirigibles is now provided by
A. helium.
B. Hot air.
C. Hydrogen.
D. Nitrogen.
E. Oxygen.
The correct answer is A. the dirigible or zeppelin is lifted by helium. Hydrogen is highly flammable and is no longer used for lifting hot air is used to lift balloons.
115
The name Sikorski is generally associated with the development of
A. Lighter than air aircraft.
B. Rotary wing aircraft.
C. Supersonic aircraft.
D. Turbojets.
E. Turboprops.
The correct answer is B. Igor Sikorsky designed and produced the first practical helicopter versatility rotary wing aircraft are now produce in various military and civilian versions.
116
The maneuver in which the helicopter is maintained and nearly motionless Flight over a reference point at a constant altitude and constant heading, is termed
A. Auto rotation.
B. Feathering action.
C. Hovering.
D. Free wheeling.
E. Torque.
The correct answer is C. Hovering is the term applied when a helicopter maintains it. Constant position at a selected point usually several feet above the ground.
117
Most airplanes are designed so that the outer tips of the wings are you higher than the wing roots attached to the fuselage in order to
A. Increase the maximum permissible payload.
B. Provide lateral stability.
C. Provide longitudinal stability.
D. Reduce fuel consumption.
E. streamline the fuselage. 
The correct answer is B. The upward angle formed by the wings, called the Herel counteracts any balance upset, caused by gust of wind and returns the airplane to a wing level attitude.
118
If an air foil moves forward and upwards and relative wind moves
A. Backwards and downwards.
B. Backwards and upwards.
C. Forward and downwards.
D. Forward and upwards.
E. Horizontally
The correct answer is A. The flight path and relative wind or parallel, but travel in opposite direction. If an airfoil moves forward and upward the relative wind moves backward and downward.
119
How many factors influence lift in dragon, if the wing area is doubled
A. The lift will be doubled, but the drag will be halved.
B. The lift will be, but the drag will be doubled.
C. The lift and drag will be doubled.
D. The lift and drag will be halved
E. There is no effect on Lift or drag.
The answer is C. The Lyft, and drag acting on a wing or proportional to the wing area. If the wing area is doubled, and the other variables remain the same, the lift and drag created by the wing will be doubled. 
120
Tetreathyl lead (TEL) did use principle as an additive that
A. Absorbs, moisture, inside gasoline
B. Decreases viscosity of gasoline.
C. Has a low antiknock quality
D. increase gasoline antiknock quality
E. Increase volatility of gasoline.
The correct answer is D. Tetraethyl lead is the best available knock inhibitor it is added to improve the antiknock quality of a fuel
121
Standard weights have been established for numerous items using weight and balance, computations the standard weight for gasoline using an airplane is
A. 6 pounds /US gallon.
B. 7.5 pounds/US gallon
C. 8.35 pounds/US gallon.
D. 10 pounds/US gallon
E. 15 pounds/US gallon.
The correct answer is A. The standard weight for gasoline is 6 pounds/US gallon that for oil is 7.5 pounds/US gallons and that for water is 8.35 pounds/US gallon.
122
The internal pressure of fluid decreases at points where the speed of fluid increases the statement which partially explains how an airplane wing produces lift is called
A. Archimedes principal.
B. Bernoulli’s principal.
C. Kepler’s law.
D. Newton law.
E. Pascals principle.
The correct answer is B. Bernoulli’s principle in newtons third law of motion are the bases for explaining how airplane wing produces lift.
123
The rear word force acting on an airplane during flight is termed
A. Drag.
B. Gravity.
C. Lift.
D. Thrust.
E. Weight
The correct answer is A. The rearward or retarding force acting on an airplane during flight is called drag.
124
The acute angle between the cord line of the wing, and the direction of the relative wind is
A. Angle of attack.
B. Angle of incident.
C. Axis of rotation.
D. Vector.
E. Pitch angle.
The correct answer is A. The angle of attack is the angle between the cord line of the air foil, and the direction of the relative wind.
125
Which of the following statement is true regarding Lyft and drag?
A. And the air density increases lift and drag decreases.
B. As the air density increases, lift increases but drag decreases
C. As the air density increases decreases, but drag increases.
D. As the air density increases, lift and drag increased.
E. Lift varies inversely with the density of the air.
The correct answer is D. Varies directly with the density of the air density of air increases lift, and drag increase.
126
The after end of the air foil, where the airflow over the upper surface meet, the airflow from the lower surface is called the
A. Camber.
B. Cord.
C. Leading edge.
D. Relative wind.
E. Trailing edge.
The correct answer is E. The age of the airfoil order wing is the end of the air foil where the airflow over the upper surface makes airflow from the lower surface 
