NIFE Engines Study Questions (from
gouge app) Exam Questions with
Correct Answers
Where is the only location inside an engine where pressure and velocity can increase?
a) exhaust
b) compressor
c) turbine
d) intake - Answer- compressor
What is AOA measured between in a compressor? - Answer- chordline and relative
wind
What happens to thrust as temperature decreases? - Answer- increases
What color is Avgas 100LL? - Answer- blue
What are the limits on military thrust?
a) time only
b) temperature only
c) time and temperature
d) there are no limits - Answer- time and temperature
What converts DC power to AC power?
a) transformer
b) battery
c) rectifier
d) inverter - Answer- inverter
What is one of the functions of the accumulator?
a) the main storage for the oil system
b) a shock absorber for pressure fluctuation in the fuel system
c) a shock absorber for pressure fluctuation in the air system
d) a shock absorber for pressure fluctuation in the hydraulic system - Answer- a shock
absorber for pressure fluctuation in the hydraulic system
What is an indication of a compressor stall?
, a) RPM decay
b) minimal noise fluctuation
c) ITT decrease
d) stall horn - Answer- RPM decay
_________ thrust is the thrust which is corrected for the effects of inlet airflow velocity
a) static
b) total
c) gross
d) net - Answer- net
What is the function of the constant speed drive in the typical electrical system?
a) to keep the accessory gear case rotating at a constant RPM
b) to keep the AC generator rotating at a constant RPM
c) to ensure the aircraft maintains a predetermined TAS
d) to ensure the tachometer does not exceed 100% RPM - Answer- b) to keep the AC
generator rotating at a constant RPM
What cuts off fuel flow when the engine is secured?
a) a valve in the pressurizing and dump valve
b) a pressure signal from the FCU to the flow meter
c) a pressure signal to the FCU from the throttle
d) a valve in the FCU - Answer- a) a valve in the pressurizing and dump valve
What does the selector valve do?
a) adjust system pressure
b) select system pressure
c) direct pump output
d) change direction of fluid flow - Answer- d) change direction of fluid flow
A hydraulic system that contains a constant displacement pump must also contain:
a) unloader valve
b) constant actuating valve
c) variable displacement valve
d) pressure regulator valve - Answer- d) pressure regulator valve
Which bus power mission equipment?
a) primary bus
b) essential bus
c) secondary bus
gouge app) Exam Questions with
Correct Answers
Where is the only location inside an engine where pressure and velocity can increase?
a) exhaust
b) compressor
c) turbine
d) intake - Answer- compressor
What is AOA measured between in a compressor? - Answer- chordline and relative
wind
What happens to thrust as temperature decreases? - Answer- increases
What color is Avgas 100LL? - Answer- blue
What are the limits on military thrust?
a) time only
b) temperature only
c) time and temperature
d) there are no limits - Answer- time and temperature
What converts DC power to AC power?
a) transformer
b) battery
c) rectifier
d) inverter - Answer- inverter
What is one of the functions of the accumulator?
a) the main storage for the oil system
b) a shock absorber for pressure fluctuation in the fuel system
c) a shock absorber for pressure fluctuation in the air system
d) a shock absorber for pressure fluctuation in the hydraulic system - Answer- a shock
absorber for pressure fluctuation in the hydraulic system
What is an indication of a compressor stall?
, a) RPM decay
b) minimal noise fluctuation
c) ITT decrease
d) stall horn - Answer- RPM decay
_________ thrust is the thrust which is corrected for the effects of inlet airflow velocity
a) static
b) total
c) gross
d) net - Answer- net
What is the function of the constant speed drive in the typical electrical system?
a) to keep the accessory gear case rotating at a constant RPM
b) to keep the AC generator rotating at a constant RPM
c) to ensure the aircraft maintains a predetermined TAS
d) to ensure the tachometer does not exceed 100% RPM - Answer- b) to keep the AC
generator rotating at a constant RPM
What cuts off fuel flow when the engine is secured?
a) a valve in the pressurizing and dump valve
b) a pressure signal from the FCU to the flow meter
c) a pressure signal to the FCU from the throttle
d) a valve in the FCU - Answer- a) a valve in the pressurizing and dump valve
What does the selector valve do?
a) adjust system pressure
b) select system pressure
c) direct pump output
d) change direction of fluid flow - Answer- d) change direction of fluid flow
A hydraulic system that contains a constant displacement pump must also contain:
a) unloader valve
b) constant actuating valve
c) variable displacement valve
d) pressure regulator valve - Answer- d) pressure regulator valve
Which bus power mission equipment?
a) primary bus
b) essential bus
c) secondary bus
