# Aerodynamics Prepware – Private Pilot

Select the four flight fundamentals involved in maneuvering an aircraft.
Aircraft power, pitch, bank, and trim.
Straight-and-level flight, turns, climbs, and descents.:

Straight-and-level flight, turns, climbs, and descents.

1. One of the main functions of flaps during approach and landing is to
decrease the angle of descent without increasing the airspeed.
increase the angle of descent without increasing the airspeed

increase the angle of descent without increasing the airspeed.

3. Loading an airplane to the most aft CG will cause the airplane to be

less stable at all speeds.

less stable at high speeds, but more stable at low speeds.:

less stable at all speeds. Loading in a tail-heavy condition can reduce the airplane’s ability to recover from stalls and spins. Tail-heavy loading also produces very light stick forces at all speeds, making it easy for the pilot to inadvertently overstress the airplane.

4. The amount of excess load that can be imposed on the wing of an airplane

depends upon the position of the CG.

speed of the airplane.

speed of the airplane.

L=W= V formula

At slow speeds, the maximum available lifting force of the wing is only slightly greater

than the amount necessary to support the weight of the airplane.

However, at high speeds, the capacity of the elevator controls, or a strong gust, may

increase the load factor beyond safe limits.

5. The wind condition that requires maximum caution when avoiding wake

turbulence on landing is a

light, quartering tailwind.

light, quartering tailwind.

A tailwind condition can move the vortices of a preceding aircraft forward into the touchdown zone.

1. As altitude increases, the indicated airspeed at which a given airplane stalls
in a particular configuration will
decrease as the true airspeed decreases.
decrease as the true airspeed increases.
remain the same regardless of altitude.:

remain the same regardless of altitude.
An increase in altitude has no effect on the indicated airspeed at which an airplane
stalls at altitudes normally used by general aviation aircraft. This means that the
same indicated airspeed should be maintained during the landing approach regardless of the elevation or the density altitude at the airport of landing..

7. Ground effect is most likely to result in which problem?

Settling to the surface abruptly during landing.

Becoming airborne before reaching recommended takeoff speed.:

Becoming airborne before reaching recommended takeoff speed.

Due to the reduced drag in ground effect, the airplane may seem capable of takeoff

well below the recommended speed. It is important that no attempt be made to

force the airplane to become airborne with a deficiency of speed. The recommended

takeoff speed is necessary to provide adequate initial climb performance.

8. he presence of carburetor ice in an aircraft equipped with a fixed-pitch

propeller can be verified by applying carburetor heat and noting

an increase in RPM and then a gradual decrease in RPM.

a decrease in RPM and then a gradual increase in RPM.:

a decrease in RPM and then a gradual increase in RPM.

When heat is applied there will be a drop in RPM in airplanes equipped with

fixed-pitch propellers. If carburetor ice is present, there will normally be a rise in

RPM after the initial drop. Then, when the carburetor heat is turned off, the RPM will rise to a setting greater than that before application of the heat. The engine should also run more smoothly after the ice has been removed.

9. If an aircraft is equipped with a fixed-pitch propeller and a float-type carburetor, the first indication of carburetor ice would most likely be:
increase of RPM.

Loss of RPM.

10. The possibility of carburetor icing exists even when the ambient air temperature is as

high as 70°F and the relative humidity is high.

low as 0°F and the relative humidity is high.:

high as 70°F and the relative humidity is high.

11. What is an advantage of a constant-speed propeller?

Permits the pilot to select the blade angle for the most efficient performance.

Provides a smoother operation with stable RPM and eliminates vibrations.:

Permits the pilot to select the blade angle for the most efficient performance.

A constant-speed propeller permits the pilot to select the blade angle that will result in the most efficient performance for a particular flight condition. A low blade angle allows higher RPM and horsepower, desirable for takeoffs. An intermediate position can be used for subsequent climb. After airspeed is attained during cruising flight, the blade may be changed to a higher angle for lower RPM, reduced engine noise, generally lower vibration, and greater fuel efficiency.

12. How is engine operation controlled on an engine equipped with a constant-speed propeller?

The throttle controls power output as registered on the manifold pressure

gauge and the propeller control regulates engine RPM.

The throttle controls power output as registered on the manifold pressure

gauge and the propeller control regulates a constant blade angle.:

13. How is engine operation controlled on an engine equipped with a constant-speed propeller?

The throttle controls power output as registered on the manifold pressure

gauge and the propeller control regulates engine RPM.

The throttle controls power output as registered on the manifold pressure

gauge and the propeller control regulates a constant blade angle.:

The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates engine RPM.

14. If a pilot suspects that the engine (with a fixed-pitch propeller) is detonating during climb-out after takeoff, the initial corrective action to take would be

to lower the nose slightly to increase airspeed. apply carburetor heat.:

lower the nose slightly to increase airspeed.

Lowering the nose will allow the aircraft to gain airspeed, which eventually lowers the engine temperature.

15. Generally speaking, the use of carburetor heat tends to decrease engine performance.

increase engine performance.:

decrease engine performance.

Carburetor heat – lowers rpm

Use of carburetor heat tends to reduce the output of the engine and also to increase the operating temperature.

16. For internal cooling, reciprocating aircraft engines are especially dependent on air flowing over the exhaust manifold.

the circulation of lubricating oil.:

the circulation of lubricating oil.

Oil, used primarily to lubricate the moving parts of the engine, also cools the internal parts of the engine as it circulates.

17. An abnormally high engine oil temperature indication may be caused by

the oil level being too low.

operating with an excessively rich mixture.:

the oil level being too low.

MORE FRICTION

Oil, used primarily to lubricate the moving parts of the engine, also helps reduce

engine temperature by removing some of the heat from the cylinders. Therefore, if the oil level is too low, the transfer of heat to less oil would cause the oil temperature to rise.

18. To properly purge water from the fuel system of an aircraft equipped with

fuel tank sumps and a fuel strainer quick drain, it is necessary to drain fuel

from the lowest point in the fuel system.

fuel strainer drain and the fuel tank sumps.:

fuel strainer drain and the fuel tank sumps.

stainer removes water too

19. How should an aircraft preflight inspection be accomplished for the first flight of the day?

Quick walk around with a check of gas and oil.

Thorough and systematic means recommended by the manufacturer.:

Thorough and systematic means recommended by the manufacturer.