1. What is the primary function of the leading edge flaps in landing configuration during the flare before touchdown?

Prevent flow separation.
Decrease rate of sink.
Increase profile drag.

2. What effect does the leading edge slot in the wing have on performance?

Decreases profile drag.
Changes the stalling angle of attack to a higher angle.
Decelerates the upper surface boundary layer air.

3. Within what Mach range does transonic flight regimes usually occur?

.50 to .75 Mach.
.75 to 1.20 Mach.
1.20 to 2.50 Mach.

4. What is the highest speed possible without supersonic flow over the wing?

initial buffet speed.
Critical Mach number.
Transonic index.

5. What is the free stream Mach number which produces first evidence of local sonic flow?

Supersonic Mach number.
Transonic Mach number.
Critical Mach number.

6. At what Mach range does the subsonic flight range normally occur?

Below .75 Mach.
From .75 to 1.20 Mach.
From 1.20 to 2.50 Mach.

7. What is the principal advantage of a sweepback design wing over a straightwing design?

The critical Mach number will increase significantly.
Sweepback will increase changes in the magnitude of force coefficients due to compressibility.
Sweepback will accelerate the onset of compressibility effect.

8. What is the result of a shock-induced separation of airflow occurring symmetrically near the wing root of a sweptwing aircraft?

A high-speed stall and sudden pitchup.
A severe moment or "tuck under."
Severe porpoising.

9. What is one disadvantage of a sweptwing design?

The wing root stalls prior to the wingtip section.
The wingtip section stalls prior to the wing root.
Severe pitchdown moment when the center of pressure shifts forward.

10. What is the condition known as when gusts cause a sweptwing-type airplane to roll in one direction while yawing in the other?

Porpoise.
Wingover.
Dutch roll.

11. What is the movement of the center of pressure when the wingtips of a sweptwing airplane are shock-stalled first?

Inward and aft.
Inward and forward.
Outward and forward.

12. For a given angle of bank, the load factor imposed on both the aircraft and pilot in a coordinated constant-altitude turn

is directly related to the airplane's gross weight.
varies with the rate of turn.
is constant.

13. What is the relationship between induced and parasite drag when the gross weight is increased?

Parasite drag increases more than induced drag.
induced drag increases more than parasite drag.
Both parasite and induced drag are equally increased.

14. What should a pilot do to maintain "best range" airplane performance when a tailwind is encountered?

Increase speed.
Maintain speed.
Decrease speed.

15. At which speed will increasing the pitch attitude cause an airplane to climb?

Low speed.
High speed.
Any speed.

16. At what speed, with reference to L/Dmax does maximum rate-of-climb for a jet airplane occur?

A speed greater than that for L/D_max
A speed equal to that for L/D_max
A speed less than that for L/D_max

17. At what speed, with reference to L/Dmax, does maximum range for a jet airplane occur?

A speed less than that for L/D_max
A speed equal to that for L/D_max
A speed greater than that for L/D_max

18. What result does a level turn have on the total lift force and load factor?

Lift force remains constant and the load factor increases.
Lift force increases and the load factor decreases.
Both total lift force and load factor increase.

19. A definition of the term "viscous hydroplaning" is where

the airplane rides on standing water.
a film of moisture covers the painted or rubbercoated portion of the runway.
the tires of the airplane are actually riding on a mixture of steam and melted rubber.

20. Which term describes the hydroplaning which occurs when an airplane's tire is effectively held off a smooth runway surface by steam generated by friction?

Reverted rubber hydroplaning.
Dynamic hydroplaning.
Viscous hydroplaning.