Aircraft systems quiz

Question 1

result in more air going through the carburetor.

Answer 1

enrich the fuel/air mixture.

Question 2

With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be

Answer 2

more susceptible to icing.

Question 3

Carburetor icing can occur with an OAT as high as

Answer 3

20° C and high relative humidity.

Question 4

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

Answer 4

fuel strainer drain and the fuel tank sumps.

Question 5

The most important rule to remember in the event of a power failure after becoming airborne is to

Answer 5

immediately establish the proper gliding attitude and airspeed.

Question 6

One purpose of the dual ignition system on an aircraft engine is to provide for

Answer 6

improved engine performance.

Question 7

What is one purpose for using reciprocating engines?

Answer 7

They are relatively simple and inexpensive to operate.

Question 8

The presence of carburetor ice in an aircraft equipped with a fixed-pitch propeller can be verified by applying carburetor heat and noting

Answer 8

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

Question 9

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

Answer 9

The fuel/air mixture becomes richer.

Question 10

Detonation may occur at high-power settings when

Answer 10

the fuel mixture ignites instantaneously instead of burning progressively and evenly.

Question 11

On aircraft equipped with fuel pumps, when is the auxiliary electric driven pump used?

Answer 11

In the event engine-driven fuel pump fails.

Question 12

An electrical system failure (battery and alternator) occurs during flight. In this situation, you would

Answer 12

experience avionics equipment failure.

Question 13

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

Answer 13

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

Question 14

An abnormally high engine oil temperature indication may be caused by

Answer 14

the oil level being too low.

Question 15

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 15

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

Question 16

If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating range, the pilot may have been operating with

Answer 16

too much power and with the mixture set too lean.

Question 17

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

Answer 17

lower the nose slightly to increase airspeed.

Question 18

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

Answer 18

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

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

During the preflight inspection who is responsible for determining the aircraft is safe for flight?

Answer 21

The pilot-in-command.

Question 22

The basic purpose of adjusting the fuel/air mixture at altitude is to

Answer 22

decrease the fuel flow in order to compensate for decreased air density.

Question 23

The left turning tendency of an airplane caused by P-factor is the result of the

Answer 23

propeller blade descending on the right, producing more thrust than the ascending blade on the left.

Question 24

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

Answer 24

Enrichen the fuel mixture.

Question 25

Which condition is most favorable to the development of carburetor icing?

Answer 25

Temperature between 20 and 70°F and high humidity.

Question 26

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

Answer 26

The fuel/air mixture may become excessively lean.

Question 27

Excessively high engine temperatures will

Answer 27

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

Question 28

Which would most likely cause the cylinder head temperature and engine oil temperature gauges to exceed their normal operating ranges?

Answer 28

Using fuel that has a lower-than-specified fuel rating.

Question 29

The operating principle of float-type carburetors is based on the

Answer 29

difference in air pressure at the venturi throat and the air inlet.

Question 30

What should be the first action after starting an aircraft engine?

Answer 30

Adjust for proper RPM and check for desired indications on the engine gauges.

Question 31

Who is primarily responsible for maintaining an aircraft in airworthy condition?

Answer 31

Owner or operator.

Question 32

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

Answer 32

be at the controls in the cockpit.

Question 33

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

Answer 33

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

Question 34

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 34

loss of RPM.

Question 35

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

Answer 35

pre-ignition.

Question 36

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

Answer 36

The next higher octane aviation gas.

Question 37

Filling the fuel tanks after the last flight of the day is considered a good operating procedure because this will

Answer 37

prevent moisture condensation by eliminating airspace in the tanks.

Question 38

Excessively high engine temperatures, either in the air or on the ground, will

Answer 38

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

Question 39

Detonation occurs in a reciprocating aircraft engine when

Answer 39

the unburned charge in the cylinders explodes instead of burning normally.

Question 40

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

Answer 40

When at high angles of attack.

Question 41

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

Answer 41

Low airspeed, high power, high angle of attack.

Question 42

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

Answer 42

Thorough and systematic means recommended by the manufacturer.

Question 43

What is an advantage of a constant-speed propeller?

Answer 43

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

Question 44

A precaution for the operation of an engine equipped with a constant-speed propeller is to

Answer 44

avoid high manifold pressure settings with low RPM.

Question 45

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

Answer 45

Reduce rate of climb and increase airspeed.

Question 46

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

Answer 46

detonation.