Aircraft Systems

Question 1

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

Answer 1

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

Question 2

What change occurs in the air-fuel mixture when carburetor heat is applied?

Answer 2

The air-fuel mixture becomes richer.

Question 3

During a night flight, you observe a steady white light and a flashing red light ahead and at the same altitude.
What is the general direction of movement of the other aircraft?

Answer 3

The other aircraft is flying away
from you.

Question 4

Applying carburetor heat will

Answer 4

enrich the air-fuel mixture.

Question 5

While cruising at 9,500 feet MSL, the air-fuel mixture is properly adjusted.
What will occur if a descent to 4,500 feet MSL is made without readjusting the mixture?

Answer 5

The air-fuel mixture may become excessively lean.

Question 6

What type fuel can be substituted for an aircraft if the recommended octane is not available?

Answer 6

The next higher octane aviation gas.

Question 7

An abnormally high engine oil temperature indication may be caused by

Answer 7

the oil level being too low.

Question 8

What is one procedure to aid in cooling an engine that is overheating?

Answer 8

Enrichen the fuel mixture.

Question 9

During the run-up at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action?

Answer 9

Check the results obtained with a leaner setting of the mixture.

Question 10

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

Answer 10

loss of RPM.

Question 11

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

Answer 11

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

Question 12

During a night flight, you observe a steady red light and a flashing red light ahead and at the same altitude. What is the general direction of movement of the other aircraft?

Answer 12

The other aircraft is crossing to
the left.

Question 13

It the grade of tuel used in an aircraft engine is lower than specified for the
engine, it will most likely cause

Answer 13

detonation.

Question 14

Excessively high engine temperatures will

Answer 14

cause loss of power, excessive oil consumption, and possible permanent internal engine damage.

Question 15

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

Answer 15

Thorough and systematic means recommended by the manufacturer.

Question 16

Should it become necessary to handprop an airplane engine, it is extremely important that a competent pilot

Answer 16

be at the controls in the flight deck.

Question 17

During a night flight, you observe steady red and green lights ahead and at the
same altitude. What is the general direction of movement of the other aircraft?

Answer 17

The other aircraft is approaching head on

Question 18

What action can a pilot take to aid in cooling an engine that is overheating
during a climb?

Answer 18

Reduce rate of climb and increase airspeed

Question 19

For internal cooling, reciprocating aircraft engines are especially dependent
on

Answer 19

the circulation of lubricating oil.

Question 20

Generally speaking, the use of carburetor heat tends to

Answer 20

decrease engine performance.

Question 21

In what flight condition are torque effects more pronounced in a single-engine airplane?

Answer 21

Low airspeed, high power, high angle
of attack.

Question 22

Pilots are encouraged to turn on their landing lights when operating below 10,000 feet, day or night, and when operating within

Answer 22

10 miles of any airport.

Question 23

When does P-factor cause the airplane to yaw to the left?

Answer 23

When at high angles of attack.

Question 24

If the ground wire between the magneto and the ignition switch becomes disconnected, the most noticeable result will be that the engine

Answer 24

cannot be shut down by turning the switch to the OFF position.

Question 25

The uncontrolled firing of the air-fuel charge in advance of normal spark ignition is known as

Answer 25

pre-ignition.