General Knowledge Test

Question 1

What is the relationship between stall speed and altitude?

Answer 1

The higher the altitude, the higher the stall speed.

Question 2

What is the lift to drag ratio?

Answer 2

Angle of attack that produces the least amount of drag to the lift produced.

Question 3

What can too rich a mixture do?

Answer 3

Lower combustion temperature, unburned gas is expelled and wasted through exhaust, can cause fouled plugs and loss of power.

Question 4

What can too lean a mixture cause?

Answer 4

Hot engine, rough running, causes backfiring and detonation.

Question 5

When on the ground, what could leaning the mixture do for you?

Answer 5

Reduce chances of spark plug fouling.

Question 6

What axis do ailerons affect?

Answer 6

Longitudinal.

Question 7

What axis do elevators affect?

Answer 7

Lateral.

Question 8

What axis does the rudder affect?

Answer 8

Yaw.

Question 9

When are wingtip vorticies at their worst?

Answer 9

Slow, clean configuration.

Question 10

How would a forward C of G affect the longitudinal stability of an aircraft?

Answer 10

Increased stability, the wing flies at a higher angle of attack, lower speeds, more lift and more induced drag. HIGHER STALL SPEED.

Question 11

How would a rearward C of G affect the longitudinal stability of an aircraft?

Answer 11

Decreased stability, higher cruise speed, lower stall speed, no spin recovery.

Question 12

What is a constant speed propeller?

Answer 12

Propeller that is designed to automatically change its blade pitch to allow it to maintain a constant RPM.

Question 13

What are the advantages of a constant speed propeller?

Answer 13

Optimized performance, fuel efficient, reduces wear on engine.

Question 14

What are advantages of fuel-injection engines?

Answer 14

Efficient, accurate and no possibility of carb ice.

Question 15

What are disadvantages of fuel-injected engines?

Answer 15

Suffer from vapor lock, difficult to start hot engine, difficult to start engine because of fuel starvation.

Question 16

What are advantages of a carburetor?

Answer 16

Easier to maintain, cheaper, and are not prone to vapor-lock.

Question 17

What are disadvantages of a carburetor?

Answer 17

Lack of efficiency, float bowl is not suited to negative gravity, prone to carb icing.

Question 18

What are the three types of carburetor icing?

Answer 18

Fuel vaporization, throttle ice, impact ice.

Question 19

When is carb icing at its worst?

Answer 19

-5°C to 15°C.

Question 20

When can carb icing occur?

Answer 20

On high moisture days, -5°C to 30°C.

Question 21

What does carb heat do?

Answer 21

Prevents ice build up in the venturi, but also reduces RPM.

Question 22

What is vapor lock?

Answer 22

A condition, on warm days, where air enters the fuel system and may be impossible to start an engine.

Question 23

What are the three main components of a turbocharger?

Answer 23

Turbine, compressor, shaft that connects the two together.

Question 24

What is the turbine in the turbocharger driven by?

Answer 24

By exhaust gas leaving the engine.

Question 25

Why are turbochargers used in aircraft?

Answer 25

To make up for the loss of manifold pressure in the engine at high altitude.

Question 26

What is a wastegate in a turbocharger?

Answer 26

To bleed off some of the manifold pressure if the turbocharger creates too much manifold pressure.

Question 27

How is a supercharger different from a turbocharger?

Answer 27

A supercharger requires engine power (crankshaft) to drive it.

Question 28

What are the five stresses?

Answer 28

Tension, torsion, shearing, bending, compression.

Question 29

What is the four-stroke cycle?

Answer 29

Intake, compression, ignition, exhaust. (Suck, squeeze, bang, blow)

Question 30

How long is one cycle of the four-stroke cycle?

Answer 30

Two rotations of the crankshaft.

Question 31

What is the airflow over the wing? Is it high or low pressure?

Answer 31

The laminar airflow, low pressure over the wing.

Question 32

Induced drag: what direction is the wind going over the wing? Under the wing?

Answer 32

Over the top is taking air in (low pressure), below is expelling air out (high pressure).

Question 33

What color is 80/87?

Answer 33

Red.

Question 34

What color is 100LL?

Answer 34

Blue.

Question 35

What color is 100 (100/130)?

Answer 35

Green.

Question 36

What color is Jet A1?

Answer 36

Clear or straw.

Question 37

How would you identify water contamination in fuel?

Answer 37

Condensation inside fuel tank; water will sink to the bottom of the tanks.

Question 38

What are the three fuselage types?

Answer 38

Truss-type, monocoque, semi-monocoque.

Question 39

What is a truss-type comprised of?

Answer 39

A frame of wood beams (bolted) or metal tubes (welded).

Question 40

What is a monocoque comprised of?

Answer 40

Stressed skin; carries all the load.

Question 41

What is a semi-monocoque comprised of?

Answer 41

Stressed skin and bulkheads; also has a firewall.

Question 42

What is ground effect?

Answer 42

The increased lift (force) and decreased aerodynamic drag that an aircraft's wings generate when they are close to a fixed surface.

Question 43

What configuration has the greatest wingtip vortices?

Answer 43

Clean configuration, low airspeed, heavy.

Question 44

What happens if a fuel cap is left open in flight?

Answer 44

Will create a vacuum and suck the fuel out at a very fast rate.

Question 45

How do you avoid wake turbulence on take-off?

Answer 45

Rotate prior to the point at which the preceding aircraft rotated.

Question 46

How do you avoid wake turbulence on landing?

Answer 46

Stay at or above the larger aircraft's flight path.

Question 47

What are the four functions of oil?

Answer 47

Lubricating, cooling, flushing, sealing.

Question 48

What would excessive lean mixture cause?

Answer 48

Rough running engine, high EGT temperature, damage to the engine.

Question 49

What is a coarse pitch porpeller?

Answer 49

Large angle (bigger bite of air); slower.

Question 50

What is a fine pitch propeller?

Answer 50

Smaller angle (smaller bite of air); faster and less drag.

Question 51

What are the two types of propellers?

Answer 51

Fixed pitch and variable pitch.

Question 52

What are the three variable pitch types?

Answer 52

Adjustable, controllable, constant speed.

Question 53

What instruments utilize a gyro?

Answer 53

Attitude indicator, heading indicator, and turn coordinator.

Question 54

What items are connected to the vacuum system?

Answer 54

Attitude and heading indicator.

Question 55

What are the two types of drag?

Answer 55

Parasite drag and induced drag.

Question 56

What is a stabilator?

Answer 56

A moving airfoil section that serves both s a horizontal stabilizer and elevator. (All once piece)

Question 57

What do you do to your speed in gusty conditions on landing?

Answer 57

Add half of the gust factor.

Question 58

What is wash-out?

Answer 58

The design of the wing where the angle of incidence at the tip is lower than at the root.

Question 59

What does wash-out do?

Answer 59

The wing root stalls first before the wingtip.

Question 60

What are the 2 types of truss-type?

Answer 60

A "warren" and N-girder.

Question 61

What would a blocked static port affect?

Answer 61

Airspeed indicator, altimeter and vertical speed indicator.

Question 62

What would a blocked pitot tube affect?

Answer 62

Incorrect airspeed, VSI and altimeter readings.