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Question 1

It is important to combine the boundary later control with flaps since-

Answer 1

The flap deflection tends to reduce the angle of attack for maximum lift.

Question 2

In a descent maintaining angle of attack, as an aircraft slows with its flaps extended _______ drag ______.

Answer 2

parasite DRAG decreases

Question 3

How are lift and/or drag affected if angle of attack is decreased?

Answer 3

lift will increase if the angle of attack was previously greater that L/D Max

Question 4

how would moving fuel aft in flight affect fuel efficiency?

Answer 4

increase fuel efficiency by counteracting the nose down pitching tendency of the wings

Question 5

in theory, what effect does using reducedthrust for takeoff have on the V1 speed?

Answer 5

V1 will decrease

Question 6

Planning takeoffs at high altitude air[prts with high temperatures require some special considerations, which of the following is one of those considerations?

Answer 6

potential of exceeding tire limit speeds

Question 7

what is a characteristic of fowler flaps?

Answer 7

increase the surface area of the wing and are generally slotted

Question 8

with the center of pressure forward of the center of gravity, extending the flaps will cause the following

Answer 8

the aircraft will pitch up

Question 9

drag divergence usually occurs-

Answer 9

5-10% above the critical MACH number

Question 10

For an airplane with r4elatively high thrust-to-weight ration, a 10% increase in takeoff gross weight would make results in a takeoff distance increase of approximately _%

Answer 10

21%

Question 11

what is shock stall MACH tuck?

Answer 11

as a plane exceeds its MCRT (critical MACH), a shockwave forms on the wing that can cause a shock stall. Local sonic flow creates a shockwave symmetrically near the wingroot; a loss of downwash on the elevator results.

Question 12

Which conditions describe an airplane in unitentional upset?

Answer 12

Pitch attitude more than 25 degrees nose up or more than 10 degrees nose down, bank angle more than 45 degrees and fliight withing these parameters at airspeeds inappropriate for the conditions.

Question 13

IF an airplane attemps to maintain level flight in ground effect with an agle of attack required for level flight out-of-ground effect, the airplane will-

Answer 13

maintain level flight but at a faster airspeed

Question 14

as you increase an airplanes’ airspeed in level flight, which source of energy is affecting this change?

Answer 14

Kinetic …. NOT chemical

Question 15

when flabs are used ____________ increases?

Answer 15

camber increases

Question 16

as an airplane slows with its flaps extended, which statement below is true?

a. parasite drag decreases
b. parasite drag increases
c. induced drag increases and parasite drag decreases
d. induced drag increases

Answer 16

c. induced drag increases and parasite drag decreases

Question 17

all other things being equal, the rougher surface area,________________

Answer 17

the thicker the boundary layer

Question 18

What two factors affect lift in a turn?

Answer 18

AOA and airspeed

Question 19

aspext ratio of the wing is the ratio of ____________

Answer 19

square of wingspan to its planform area

Question 20

during the takeoff phase of flight, ground effect produced some important relationships. An aircraft leaving ground effect after takeoff encounters just the reverse of an aircraft entering ground effect during landing: i.e. the aircraft leaving the ground will-

Answer 20

experience a rediction in static source pressure & increase in indicated airspeed