Gas Turbines - Lubrication: DGCA Technical General questions

Question 1

The magnetic chip detectors are fitted in:

Accepted Answer

return line between the engine and the scavenge pump.

Answer

the pressure line between the pressure pump and the engine.

Answer

suction line between the reservoir and the pressure pump.

Answer

return line after the FCOC.

Question 2

An Internal Engine Overheat warning would necessitate:

Accepted Answer

the engine to be shut down.

Answer

the oil temperature to be closely monitored.

Answer

the EGT to be closely monitored.

Answer

the engine power to be reduced to idle.

Question 3

The bearing chambers of a gas turbine engine are vented:

Accepted Answer

via the centrifugal breather.

Answer

via the auxiliary gearbox drive.

Answer

via the air seals, into the gas stream.

Answer

to prevent oil loss.

Question 4

In a gas turbine engine oil pressure is measured:

Accepted Answer

after the pressure pump.

Answer

in the engine.

Answer

in the return line.

Answer

in the FCOC to ensure oil pressure is always above fuel pressure.

Question 5

Oil seals are pressurized:

Accepted Answer

to ensure minimum oil loss.

Answer

to ensure oil is forced into the bearings.

Answer

to ensure that the oil is prevented from leaving the bearing housing.

Answer

to minimize heat loss in the bearing housing.

12 more questions in this chapter, free with an account