finals

Question 1

most common metals used in aircraft
construction

Answer 1

aluminum, magnesium, titanium,
steel, and their alloys.

Question 2

composed of two or more metals.
largest amount is called
metals added to the base metal

Answer 2

Alloy
base metal
alloying metal

Question 3

widely used in modern
aircraft construction.
valuable
because they have a high strength-to-weight ratio.

Answer 3

aluminum

Question 4

world’s lightest structural metal.
It is a silvery-white material that weighs two-thirds as
much as aluminum.
use to make helicopters

Answer 4

magnesium

Question 5

lightweight, strong, corrosion-
resistant metal.

Answer 5

titanium

Question 6

withstand the forces that occur on today’s modern aircraft.

Answer 6

steel alloy

Question 7

used in canopies,
windshields, and other transparent enclosures.

Answer 7

transparent plastics

Question 8

used in the construction of
radomes, wingtips, stabilizer tips, antenna covers, and
flight controls.
high
strength-to-weight ratio and is resistant to mildew and
rot. Because it is easy to fabricate, it is equally suitable
for other parts of the aircraft.

Answer 8

reinforced plastic

Question 9

High-performance aircraft require an extra high
strength-to-weight ratio material. Fabrication of
composite materials satisfies this special requirement.

Answer 9

composite and carbon fiber material

Question 10

refers to the ability of a material to resist abrasion, penetration, cutting action, or permanent distortion.

Answer 10

Hardness

Question 11

ability of a material to resist deformation

Answer 11

strength

Question 12

ability to withstand tension

Answer 12

tensile

Question 13

resist deformation

Answer 13

yield

Question 14

metal’s ability to resist opposing forces

Answer 14

shear

Question 15

ability of a joint to withstand any form of crushing or excessive compressive distortion.

Answer 15

bearing

Question 16

weight of a unit volume of a material.

Answer 16

density

Question 17

metal that can be hammered, rolled, or pressed into various shapes without cracking, breaking, or leaving some other detrimental effect, is said to be

Answer 17

malleability

Question 18

property of a metal that permits it to be permanently drawn, bent, or twisted into various shapes without breaking.

Answer 18

ductility

Question 19

property that enables a metal to return to its original size and shape

Answer 19

elasticity

Question 20

possesses toughness withstands tearing or shearing

Answer 20

thoughness

Question 21

allows little bending or deformation without shattering.

Answer 21

brittleness

Question 22

ability of a metal to become liquid by the application of heat.

Answer 22

fusibility

Question 23

enables a metal to carry heat or electricity

Answer 23

conductivity

Question 24

contraction and expansion that are reactions produced in metals

Answer 24

thermal exansion

Question 25

made from small strands molten silica glass

Answer 25

fiberglass/glasscloth

Question 26

types of fiber glass that has a high resistance

Answer 26

e glass (electric glass)

Question 27

magna aluminum silicate glass that stronger than eglass

Answer 27

s glass

Question 28

used in material that require chemical resistance

Answer 28

c glass

Question 29

usually characterized by yellow color, lightweight, tensile strength.

Answer 29

aramid

Question 30

very strong, stiff reinforcement

Answer 30

carbon/graphite

Question 31

depositing the element of boron onto a thin fillament of tungsten

Answer 31

boron

Question 32

used when a high temperature application is needed

Answer 32

ceramic

Question 33

Aileron Airplane movement axes of rotation types of stability

Answer 33

roll longitudinal lateral

Question 34

Elevator Airplane movement axes of rotation types of stability

Answer 34

Pitch lateral longitudinal

Question 35

rudder Airplane movement axes of rotation types of stability

Answer 35

yaw vertical directional

Question 36

control roll about longitudinal axis

Answer 36

ailerons

Question 37

this added drag causes the wing to slow down slightly cause by higher drag on the outside wing

Answer 37

adverse yaw

Question 38

controls pitch about the lateral axis

Answer 38

elevator

Question 39

controls movement of the aircraft about its vertical axis

Answer 39

rudder

Question 40

most common high lift devices used on aircraft.

Answer 40

flaps

Question 41

high lift devices also can be applied to the leading edge of the airfoil.

Answer 41

leading edge devices

Question 42

used for roll control device that projects into airstream spoils the smooth airflow

Answer 42

spoilers

Question 43

relieve the pilot of the need to maintain constant pressure on the flight control

Answer 43

trim system

Question 44

The most common installation on small aircraft is a _________ attached to the trailing edge of the elevator.

Answer 44

single trim tab

Question 45

automatic flight control system that keeps an aircraft in level flight or on a set course.

Answer 45

autopilot

Question 46

an instrument that measures the height of an aircraft above a given pressure level.

Answer 46

altimeter

Question 47

indicates whether the aircraft is climbing, descending, or in level flight. The rate of climb or descent is indicated in feet per minute (fpm).

Answer 47

vertical speed indicator

Question 48

sensitive, differential pressure gauge that measures and promptly indicates the difference between pitot (impact/dynamic pressure) and static pressure.

Answer 48

airspeed indicator

Question 49

Any spinning object exhibits gyroscopic properties. A wheel or rotor designed and mounted to utilize these properties is called a gyroscope.

Answer 49

gyroscopic

Question 50

is mounted at an angle, or canted, so it can initially show roll rate. When the roll stabilizes, it indicates rate of turn.

Answer 50

turn indicator

Question 51

gives an instantaneous indication of even the smallest changes in attitude.

Answer 51

attitude indicator

Question 52

fundamentally a mechanical instrument designed to facilitate the use of the magnetic compass.

Answer 52

heading indicator

Question 53

upward force created by the wing

Answer 53

lift

Question 54

rearward, retarding force, caused by distruption of an airflow

Answer 54

drag

Question 55

the forward force

Answer 55

thrust

Question 56

the downward force

Answer 56

weight

Question 57

resistance of the body to its movement through he air

Answer 57

drag

Question 58

due to the cctual shape of the body

Answer 58

form drag

Question 59

caused by retardation of the layers

Answer 59

skin drag

Question 60

occurs at the wing tip, where a swirling of vortex is formed

Answer 60

induced drag

Question 61

drag set up by non lifting parts

Answer 61

parasite drag

Question 62

When a body is acted upon by a constant force, its resulting acceleration is inversely proportional to the mass of the body and is directly proportional to the applied force.

Answer 62

newton's second law

Question 63

A body at rest tends to remain at rest, and a body in motion tends to remain moving at the same speed and in the same direction.

Answer 63

newtons first law

Question 64

Whenever one body exerts a force on another, the second body always exerts on the first, a force that is equal in magnitude but opposite in direction.

Answer 64

newton's third law

Question 65

The front part of the airfoil that first contacts the oncoming air. It is usually rounded to minimize air resistance and smooth the airflow over the surface.

Answer 65

leading edge

Question 66

The rear edge of the airfoil where the airflow over the upper surface meets the airflow over the lower surface. Typically, it is sharp to allow for a smooth exit of air and to reduce drag.

Answer 66

trailing edge

Question 66

A straight line connecting the leading edge to the trailing edge. The length of this line is called the chord length and is a fundamental dimension in airfoil geometry.

Answer 66

chordline

Question 67

The curvature of the airfoil's upper and lower surfaces. measured as the maximum distance between the chord line and the mean camber line (a line equidistant from the upper and lower surfaces). has a curved shape, usually with the upper surface more convex than the lower surface, enhancing lift.

Answer 67

camber

Question 68

since the downward deflected, aileron produces more lift as evidenced by the wing rising, it also produces more drag. caused by higher drag on the outside wing.

Answer 68

adverse yaw

Question 69

one aileron is raised a greater distance than other aileron

Answer 69

differential aileron

Question 70

raised pivot on an offset hinged

Answer 70

frise type aileron

Question 71

combine both aspects of flaps and aileron

Answer 71

flaperons

Question 72

one piece horizontal stabilizer

Answer 72

stabilator

Question 73

concept of two lifting surfaces

Answer 73

canard

Question 74

handwheel that operates the elavator aeleron control

Answer 74

control column or control wheel / joy stick

Question 75

simplest attaches of the trailing edge of the wing

Answer 75

plain flap

Question 76

hinged under the wings trailing edge

Answer 76

split flap

Question 77

has a gap between the wing and the leading edge

Answer 77

slotted flop

Question 78

uses metal tracks to slide backward

Answer 78

fowler flap

Question 79

direct airflow to the upper wing

Answer 79

fixed slots

Question 80

highly cambered airfoil

Answer 80

movable slats

Question 81

leading edge of the wing that folds downward

Answer 81

leading edge flaps