200-314 part 1

What bearing is used to take axial loads on a main rotation shaft of a gas turbine engine?

• Plain bearing.
• Roller bearing.
• Ball bearing.

A floating bearing is usually

• Plain bearing.
• Roller bearing.
• Ball bearing.

Which types of sensor is normally used to measure the N1 rotor speed?

• The tachometer generator type sensor
• The variable reluctance type sensor.
• The inductive type sensor.

Which types of sensor is normally used to measure the N2 rotor speed?

• The tachometer generator type sensor or The inductive type sensor.
• The inductive type sensor or the variable reluctance type sensor.
• The tachometer generator type sensor or the variable reluctance type sensor.

On engine speed indication, the red line shows on N1 indication it mean:

• The reference of speed N1 target.
• The speed N1 limit.
• The exceedance of speed N1 before.

A flat rated engine gives a constant thrust at

• All ambient conditions below this flat rate temperature.
• All ambient conditions above this flat rate temperature.
• All ambient conditions

The thermocouples for the EGT are

• Connected in parallel in order to measure the average exhaust gas temperature.
• Connected in serial in order to measure the average exhaust gas temperature.
• Directly to engine control unit in order to measure the average exhaust gas temperature.

What does the engine vibration sensors measure?

• The radial acceleration of the rotor system.
• The axial acceleration of the rotor system.
• The axial and radial acceleration of the rotor system.

Which parameters are the engines used to measure the thrust ?

• The engine pressure ratio or the RPM
• The engine pressure ratio or the engine burn temperature
• The engine fuel flow or the RPM

The term thrust specific fuel consumption (TSFC) is

• The amount of fuel which an engine used at 100% speed for 1hour.
• The amount of fuel which an engine used at idle speed for 1hour.
• The amount of fuel which an engine needs to make 1kN of thrust for 1hour.