AFH 16 EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
What is the primary focus of Chapter 16 in the Airplane Flying Handbook? - ANS An overview
of jet-powered airplane operations and differences from piston-powered airplanes.
What should pilots refer to for airplane-specific information? - ANS The FAA-approved
Airplane Flight Manual for that airplane.
What special caution should be taken near jet airplanes? - ANS Jet engines can be running
without visible propellers, posing a danger of being pulled into the intake or blown down by
exhaust.
What can happen if too much power is added during taxiing? - ANS It can pull debris off the
ground or damage equipment behind the aircraft.
What are the basic operational cycles of a jet engine? - ANS Induction, compression,
combustion, expansion, and exhaust.
What is the role of the compressor section in a jet engine? - ANS It raises the air temperature
and pressure before it enters the combustion chamber.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What happens in the combustion chamber of a jet engine? - ANS Fuel is added to the high-
pressure hot air, and igniters set the mixture on fire.
What is the purpose of the turbine section in a jet engine? - ANS It extracts energy from the
airflow to turn a shaft that drives the compressor.
What distinguishes a turbofan engine from a turbojet engine? - ANS A turbofan diverts some
air around the engine core, producing thrust from cooler bypass air.
What does the bypass ratio in a turbofan engine indicate? - ANS The amount of air that
bypasses the core compared to the amount compressed for combustion.
How does a turbofan engine affect thrust at lower speeds and altitudes? - ANS It increases
thrust, improves initial climb performance, and decreases fuel consumption.
What controls thrust in a jet engine? - ANS The amount of fuel injected into the combustion
chamber.
How do power controls typically function in jet airplanes? - ANS They consist of one thrust
lever linked to a fuel control or electronic engine computer.
What is the significance of monitoring temperature and rpm limits in jet engines? -
ANS Exceeding limits can cause serious damage to turbine blades and other components.
What should pilots do when setting power in a jet engine? - ANS Use pressure or rpm
indications to set maximum allowable thrust and stop forward movement of thrust levers for
limitations.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,How does thrust output change with throttle movement at high engine speeds? - ANS Thrust
output changes significantly with small throttle movements at high speeds.
What is the typical idle rpm range for jets? - ANS Approximately 55 percent to 60 percent.
What can happen when increasing rpm from 90 to 100 percent in a jet engine? - ANS Thrust
may increase significantly, potentially matching the total available at 70 percent.
How does jet engine acceleration compare to piston engine acceleration? - ANS Jet engine
acceleration is usually much slower, with transitions to full power taking up to 10 seconds.
What environmental condition increases jet engine efficiency? - ANS Cold temperatures
found at high altitudes.
How does outside air temperature affect fuel consumption in jet engines? - ANS Fuel
consumption decreases as outside air temperature decreases for constant engine rpm and true
airspeed.
How does outside air temperature affect jet engine fuel consumption? - ANS Fuel
consumption decreases as outside air temperature decreases for constant engine RPM and true
airspeed.
What is the benefit of flying at high altitudes for jet engines? - ANS It improves fuel economy
and speed.
What should pilots consider regarding thrust at high altitudes? - ANS Pilots should maneuver
within the limits of available thrust, stability, and controllability.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What is the absence of propeller effects in jet-powered airplanes? - ANS There is no lift from
propeller slipstream and no propeller drag.
What does a propeller produce thrust by doing? - ANS By accelerating a large mass of air
rearward.
What happens to lift when power is added in a jet airplane? - ANS Lift is not increased
instantly by adding power.
Does adding power decrease stall speed in a jet airplane? - ANS No, the stall speed is not
decreased by adding power.
What is necessary for a stabilized approach in jet airplanes? - ANS Maintaining landing
configuration, constant airspeed, controlled rate of descent, and stable power settings.
What happens when throttles are closed on a piston-powered airplane? - ANS The propellers
create significant drag, decreasing airspeed or altitude.
What is the effect of reducing power to idle on a jet engine? - ANS It produces no drag effect;
the jet engine still produces forward thrust.
What are the maximum speeds in jet airplanes referred to as? - ANS VMO (maximum
operating speed in knots) and MMO (maximum operating speed as a Mach number).
What is the Mach number? - ANS The ratio of true airspeed to the speed of sound.
What limits the aircraft at low/warm altitudes? - ANS Indicated airspeed.
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
ANSWERS GRADED A+ 2025/2026
What is the primary focus of Chapter 16 in the Airplane Flying Handbook? - ANS An overview
of jet-powered airplane operations and differences from piston-powered airplanes.
What should pilots refer to for airplane-specific information? - ANS The FAA-approved
Airplane Flight Manual for that airplane.
What special caution should be taken near jet airplanes? - ANS Jet engines can be running
without visible propellers, posing a danger of being pulled into the intake or blown down by
exhaust.
What can happen if too much power is added during taxiing? - ANS It can pull debris off the
ground or damage equipment behind the aircraft.
What are the basic operational cycles of a jet engine? - ANS Induction, compression,
combustion, expansion, and exhaust.
What is the role of the compressor section in a jet engine? - ANS It raises the air temperature
and pressure before it enters the combustion chamber.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What happens in the combustion chamber of a jet engine? - ANS Fuel is added to the high-
pressure hot air, and igniters set the mixture on fire.
What is the purpose of the turbine section in a jet engine? - ANS It extracts energy from the
airflow to turn a shaft that drives the compressor.
What distinguishes a turbofan engine from a turbojet engine? - ANS A turbofan diverts some
air around the engine core, producing thrust from cooler bypass air.
What does the bypass ratio in a turbofan engine indicate? - ANS The amount of air that
bypasses the core compared to the amount compressed for combustion.
How does a turbofan engine affect thrust at lower speeds and altitudes? - ANS It increases
thrust, improves initial climb performance, and decreases fuel consumption.
What controls thrust in a jet engine? - ANS The amount of fuel injected into the combustion
chamber.
How do power controls typically function in jet airplanes? - ANS They consist of one thrust
lever linked to a fuel control or electronic engine computer.
What is the significance of monitoring temperature and rpm limits in jet engines? -
ANS Exceeding limits can cause serious damage to turbine blades and other components.
What should pilots do when setting power in a jet engine? - ANS Use pressure or rpm
indications to set maximum allowable thrust and stop forward movement of thrust levers for
limitations.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,How does thrust output change with throttle movement at high engine speeds? - ANS Thrust
output changes significantly with small throttle movements at high speeds.
What is the typical idle rpm range for jets? - ANS Approximately 55 percent to 60 percent.
What can happen when increasing rpm from 90 to 100 percent in a jet engine? - ANS Thrust
may increase significantly, potentially matching the total available at 70 percent.
How does jet engine acceleration compare to piston engine acceleration? - ANS Jet engine
acceleration is usually much slower, with transitions to full power taking up to 10 seconds.
What environmental condition increases jet engine efficiency? - ANS Cold temperatures
found at high altitudes.
How does outside air temperature affect fuel consumption in jet engines? - ANS Fuel
consumption decreases as outside air temperature decreases for constant engine rpm and true
airspeed.
How does outside air temperature affect jet engine fuel consumption? - ANS Fuel
consumption decreases as outside air temperature decreases for constant engine RPM and true
airspeed.
What is the benefit of flying at high altitudes for jet engines? - ANS It improves fuel economy
and speed.
What should pilots consider regarding thrust at high altitudes? - ANS Pilots should maneuver
within the limits of available thrust, stability, and controllability.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What is the absence of propeller effects in jet-powered airplanes? - ANS There is no lift from
propeller slipstream and no propeller drag.
What does a propeller produce thrust by doing? - ANS By accelerating a large mass of air
rearward.
What happens to lift when power is added in a jet airplane? - ANS Lift is not increased
instantly by adding power.
Does adding power decrease stall speed in a jet airplane? - ANS No, the stall speed is not
decreased by adding power.
What is necessary for a stabilized approach in jet airplanes? - ANS Maintaining landing
configuration, constant airspeed, controlled rate of descent, and stable power settings.
What happens when throttles are closed on a piston-powered airplane? - ANS The propellers
create significant drag, decreasing airspeed or altitude.
What is the effect of reducing power to idle on a jet engine? - ANS It produces no drag effect;
the jet engine still produces forward thrust.
What are the maximum speeds in jet airplanes referred to as? - ANS VMO (maximum
operating speed in knots) and MMO (maximum operating speed as a Mach number).
What is the Mach number? - ANS The ratio of true airspeed to the speed of sound.
What limits the aircraft at low/warm altitudes? - ANS Indicated airspeed.
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
