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2AX5X > Vol.2 > Flashcards

Vol.2 Flashcards

1
Q

What is atmospheric pressure at sea level?

A

14.7 psi

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2
Q

What is a barometer designed to measure pressure in?

A

inches of mercury

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3
Q

What is the primary force an airfoil has to defeat?

A

weight

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4
Q

What is the force that acts upward at a right angle to the direction of the relative wind?

A

lift

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5
Q

What is the force that acts parallel to the relative wind?

A

Drag

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6
Q

What is the stress that resists the force tending to cause one layer of material to slide over an adjacent layer called?

A

shear

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7
Q

What is the design that uses any combination of longerons, stringers, bulkheads and frames in the construction of the fuselage called?

A

semi-monocoque

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8
Q

What are the structural members used to give shape to the aircraft and provide a means for attaching the skin to the structure called?

A

stringers

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9
Q

What is the most common type of material used for fuselage construction?

A

aluminum alloy

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10
Q

What is the wing design used on most modern military aircraft?

A

cantilever

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11
Q

What is the fixed vertical surface of the empennage called?

A

fin

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12
Q

Engine mounts are typically made of corrosion-resistant steel that is able to withstand forces ranging from what?

A

180,000-200,000 psi

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13
Q

What is the main difference between inspection plates and panels?

A

size

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14
Q

What is a network of ultrafine cracks that form on or under the surface of transparent plastics called?

A

crazing

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15
Q

What are the reference locations in the vertical direction measured from a reference datum that is usually well below the aircraft called?

A

waterlines

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16
Q

What is movement about the vertical axis called?

A

Yaw

17
Q

Which flight control surface is a longitudinal control surface?

A

elevator

18
Q

Which of these is attached to the trailing edge of a horizontal stabilizer?A. FlapB. SpoilerC. RudderD. Elevator

A

D. Elevator

19
Q

When making a right turn, what is the relative position of the ailerons?

A

right aileron trailing edge is up, left aileron trailing edge in down

20
Q

What is the purpose of wing flaps?

A

increase lift and drag

21
Q

What is the purpose of the aircraft trim system?

A

to correct minor deviations in flight attitude

2AX5X (13 decks)

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