2025 CPAER GENERAL KNOWLEDGE ACTUAL EXAM QUESTIONS
WITH ANSWERS GUARANTEE A+ 2025/2026
In a normally aspirated engine, as density altitude increases, power output ___ -
Decreases
How long should pilots wait to fly after receiving local anesthetic? - 24 hours
Equilibrium in flight means - Steady motion, forces are equal
When weight > lift - Nose down
When lift > weight - Nose up
The tachometer or RPM indicator is an instrument which shows the speed at which the
___ is turning in revolutions per minute - Crankshaft
In a turn, lower airspeed ___ the turn radius - Decreases
Define chord - Straight line joining the leading edge to the trailing edge of the wing
Air time is - The period of time from when the plane leaves the surface, until next point
of landing
Flight time - Total time from the moment an airplane first moves under its own power
until the moment of rest
Fuel control units primary function is - To measure fuel to the engine in correct quantity
to prevent either overheating or flameout
Control horns provide - Dynamic control
Servo tabs are designed to - Reduce pilot force needed on controls (deflects in opposite
direction of elevator)
Anti-Servo tabs are designed to - Increase pilot force needed on controls in instances
where control forces are too light (deflects in same direction as elevator)
Trim tabs are designed to - Balance control forces so pilot does not have to
continuously apply a force
Normally aspirated engine - Air is taken into the inlet manifold at atmospheric pressure
and is not compressed further before routed to the cylinders
The higher the manifold pressure, the ___ engine power output will be - Higher
A fuel's octane rating is a measure of its - Resistance to detonation
, Never use fuel with an octane rating ___ than is specified for the engine - Lower
If detonation is suspected, you should - Richen mixture, open cowl flaps, reduce power
if possible
Pre-ignition is when - The fuel-air mixture in an engine ignites prior to the designed
ignition time
What can cause pre-ignition? - Small accumulations of lead or carbon
Pre-ignition can normally be solved by - Cleaning the spark plugs
What happens to the centre of pressure as angle of attack is increased? - Centre of
pressure will move forward
When a wing stalls what happens to the center of pressure? - Will move rapidly
backward
How long does it take for your eyes to adjust to the dark? - 30 minutes
At night, hypoxia can be apparent at as low as ____ft - 5,000
Hypoxia's effect on vision can be compounded by which bad habit? - Smoking (due to
carbon monoxide)
Low aspect ratio wings produce ___ amounts of ___ - Large, induced drag
Induced drag decreases with increasing - TAS
Flaps ___ stalling speed - Decrease
During a short-field takeoff, ground roll is - Reduced
Steeper approaches ___ ground roll - Reduce
Flaps increase ___ and ___ of the wing - Drag, camber
Ground effect is most noticeable in (low/high) wing planes with (high/low) aspect ratio -
Low, high
Dihedral is (upward/downward) angle of the wing - Upward
Dihedral affects - Lateral stability
Load factor in a turn: - 0º = 1g
WITH ANSWERS GUARANTEE A+ 2025/2026
In a normally aspirated engine, as density altitude increases, power output ___ -
Decreases
How long should pilots wait to fly after receiving local anesthetic? - 24 hours
Equilibrium in flight means - Steady motion, forces are equal
When weight > lift - Nose down
When lift > weight - Nose up
The tachometer or RPM indicator is an instrument which shows the speed at which the
___ is turning in revolutions per minute - Crankshaft
In a turn, lower airspeed ___ the turn radius - Decreases
Define chord - Straight line joining the leading edge to the trailing edge of the wing
Air time is - The period of time from when the plane leaves the surface, until next point
of landing
Flight time - Total time from the moment an airplane first moves under its own power
until the moment of rest
Fuel control units primary function is - To measure fuel to the engine in correct quantity
to prevent either overheating or flameout
Control horns provide - Dynamic control
Servo tabs are designed to - Reduce pilot force needed on controls (deflects in opposite
direction of elevator)
Anti-Servo tabs are designed to - Increase pilot force needed on controls in instances
where control forces are too light (deflects in same direction as elevator)
Trim tabs are designed to - Balance control forces so pilot does not have to
continuously apply a force
Normally aspirated engine - Air is taken into the inlet manifold at atmospheric pressure
and is not compressed further before routed to the cylinders
The higher the manifold pressure, the ___ engine power output will be - Higher
A fuel's octane rating is a measure of its - Resistance to detonation
, Never use fuel with an octane rating ___ than is specified for the engine - Lower
If detonation is suspected, you should - Richen mixture, open cowl flaps, reduce power
if possible
Pre-ignition is when - The fuel-air mixture in an engine ignites prior to the designed
ignition time
What can cause pre-ignition? - Small accumulations of lead or carbon
Pre-ignition can normally be solved by - Cleaning the spark plugs
What happens to the centre of pressure as angle of attack is increased? - Centre of
pressure will move forward
When a wing stalls what happens to the center of pressure? - Will move rapidly
backward
How long does it take for your eyes to adjust to the dark? - 30 minutes
At night, hypoxia can be apparent at as low as ____ft - 5,000
Hypoxia's effect on vision can be compounded by which bad habit? - Smoking (due to
carbon monoxide)
Low aspect ratio wings produce ___ amounts of ___ - Large, induced drag
Induced drag decreases with increasing - TAS
Flaps ___ stalling speed - Decrease
During a short-field takeoff, ground roll is - Reduced
Steeper approaches ___ ground roll - Reduce
Flaps increase ___ and ___ of the wing - Drag, camber
Ground effect is most noticeable in (low/high) wing planes with (high/low) aspect ratio -
Low, high
Dihedral is (upward/downward) angle of the wing - Upward
Dihedral affects - Lateral stability
Load factor in a turn: - 0º = 1g
