FAA Private Pilot Exam: Powerplant Exam
Questions and Answers
Which would most likely cause the cylinder head temperature and
engine oil temperature gauges to exceed their normal operating
ranges? -
correct answer ✅Using fuel that has a lower-than-specified fuel
rating.
The operating principle of float-type carburetors is based on the -
correct answer ✅difference in air pressure at the venturi throat
and the air inlet.
The uncontrolled firing of the fuel/air charge in advance of normal
spark ignition is known as -
correct answer ✅pre-ignition.
Applying carburetor heat will -
correct answer ✅enrich the fuel/air mixture.
Most of the heat caused by internal combustion is eliminated via: -
correct answer ✅The exhaust system.
A disconnected ground wire from a magneto to the ignition switch:
-
, FAA Private Pilot Exam: Powerplant Exam
Questions and Answers
correct answer ✅Could allow the engine to continue to run after
the ignition switch is turned off.
What should be the first action after starting an aircraft engine? -
correct answer ✅Adjust for proper RPM and check for desired
indications on the engine gauges.
What would happen if your airplane experienced a complete
electrical failure during flight? -
correct answer ✅The airplane will lose all electrical equipment.
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 -
correct answer ✅lower the nose slightly to increase airspeed.
An abnormally high engine oil temperature indication may be
caused by -
correct answer ✅the oil level being too low.
If an aircraft is equipped with a fixed-pitch propeller and a float-
type carburetor, the first indication of carburetor ice would most
Questions and Answers
Which would most likely cause the cylinder head temperature and
engine oil temperature gauges to exceed their normal operating
ranges? -
correct answer ✅Using fuel that has a lower-than-specified fuel
rating.
The operating principle of float-type carburetors is based on the -
correct answer ✅difference in air pressure at the venturi throat
and the air inlet.
The uncontrolled firing of the fuel/air charge in advance of normal
spark ignition is known as -
correct answer ✅pre-ignition.
Applying carburetor heat will -
correct answer ✅enrich the fuel/air mixture.
Most of the heat caused by internal combustion is eliminated via: -
correct answer ✅The exhaust system.
A disconnected ground wire from a magneto to the ignition switch:
-
, FAA Private Pilot Exam: Powerplant Exam
Questions and Answers
correct answer ✅Could allow the engine to continue to run after
the ignition switch is turned off.
What should be the first action after starting an aircraft engine? -
correct answer ✅Adjust for proper RPM and check for desired
indications on the engine gauges.
What would happen if your airplane experienced a complete
electrical failure during flight? -
correct answer ✅The airplane will lose all electrical equipment.
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 -
correct answer ✅lower the nose slightly to increase airspeed.
An abnormally high engine oil temperature indication may be
caused by -
correct answer ✅the oil level being too low.
If an aircraft is equipped with a fixed-pitch propeller and a float-
type carburetor, the first indication of carburetor ice would most
