1|Page
PRIVATE PILOT- FAA WRITTEN
EXAM 2026|| COMPREHENSIVE Q&A
FOR CERTIFICATION SUCCESS
What is one procedure to aid in cooling an engine that is overheating. - correct-
answer -Enrich the fuel mixture
How is engine operation controlled on an engine equipped with a constant-speed
propeller? - correct-answer -The throttle controls power output as registered on
the manifold pressure gauge and the propeller control regulates engine RPM
A precaution for the operation of an engine equipped with a constant-speed
propeller is to... - correct-answer -Avoid high manifold pressure settings with low
RPM
,2|Page
What is an advantage of a constant-speed propeller? - correct-answer -Permits
the pilot to select the blade angle for the most efficient performance
One purpose of the dual ignition system on an aircraft engine is to provide for... -
correct-answer -Improved engine performance, and increased safety
(redundancy)
If the ignition switch ground wire becomes disconnected, the magneto... - correct-
answer -May continue to fire
With regard to carburetor ice, float-type carburetor systems in comparison to fuel
injection systems are generally considered to be... - correct-answer -More
susceptible to icing
,3|Page
Which condition is most favorable to the development of carburetor icing? -
correct-answer -Temperature between 20ºF and 70ºF and high humidity
The possibility of carburetor icing exist even when the ambient air temperature is
as... - correct-answer -High as 70ºF and the relative humidity is high
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... - correct-answer -Loss
of RPM
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
, 4|Page
The presence of carburetor ice in an aircraft equipped with a fixed-pitch propeller
can be verified by applying carburetor heat and noting... - correct-answer -A
decrease in RPM and then a gradual increase in RPM
Generally speaking, the use of carburetor heat tends to... - correct-answer -
Decrease engine performance
Applying carburetor heat will... - correct-answer -Enrich the fuel/air mixture
What change occurs in the fuel/air mixture when the carburetor heat is applied? -
correct-answer -The fuel/air mixture becomes richer
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
PRIVATE PILOT- FAA WRITTEN
EXAM 2026|| COMPREHENSIVE Q&A
FOR CERTIFICATION SUCCESS
What is one procedure to aid in cooling an engine that is overheating. - correct-
answer -Enrich the fuel mixture
How is engine operation controlled on an engine equipped with a constant-speed
propeller? - correct-answer -The throttle controls power output as registered on
the manifold pressure gauge and the propeller control regulates engine RPM
A precaution for the operation of an engine equipped with a constant-speed
propeller is to... - correct-answer -Avoid high manifold pressure settings with low
RPM
,2|Page
What is an advantage of a constant-speed propeller? - correct-answer -Permits
the pilot to select the blade angle for the most efficient performance
One purpose of the dual ignition system on an aircraft engine is to provide for... -
correct-answer -Improved engine performance, and increased safety
(redundancy)
If the ignition switch ground wire becomes disconnected, the magneto... - correct-
answer -May continue to fire
With regard to carburetor ice, float-type carburetor systems in comparison to fuel
injection systems are generally considered to be... - correct-answer -More
susceptible to icing
,3|Page
Which condition is most favorable to the development of carburetor icing? -
correct-answer -Temperature between 20ºF and 70ºF and high humidity
The possibility of carburetor icing exist even when the ambient air temperature is
as... - correct-answer -High as 70ºF and the relative humidity is high
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... - correct-answer -Loss
of RPM
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
, 4|Page
The presence of carburetor ice in an aircraft equipped with a fixed-pitch propeller
can be verified by applying carburetor heat and noting... - correct-answer -A
decrease in RPM and then a gradual increase in RPM
Generally speaking, the use of carburetor heat tends to... - correct-answer -
Decrease engine performance
Applying carburetor heat will... - correct-answer -Enrich the fuel/air mixture
What change occurs in the fuel/air mixture when the carburetor heat is applied? -
correct-answer -The fuel/air mixture becomes richer
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
