Starting; Ignition; Relight; and Shutdown and Lubrication System

Gas turbines use for lubrication:

• synthetic oil.

• mineral oil with additives (compound).

• mineral oil straight.

• multi-grade 20/50.

The fuel-cooled oil cooler:

• heats the oil and cools the fuel

• heats the fuel and cools the oil

• heats the fuel only

• cools the oil only

Magnetic Chip Detectors are fitted in the engine:

• to facilitate early detection of cracks in the compressor blades.

• to facilitate early warning of cracks in the turbine blades.

• to provide a warning of impending failure in the engine bearings.

• to prevent a build up of starch in the scavenge oil filter.

The magnetic chip detectors are fitted in:

• the pressure line between the pressure pump and the engine.

• suction line between the reservoir and the pressure pump.

• return line between the engine and the scavenge pump.

• return line after the FCOC.

For a pressure relief lubricating system, select the correct statement:

• the flow and pressure change with engine speed.

• the pressure relief valve is fitted in series with the pump.

• the pressure remains the same for all engine operating parameters.

• the relief valve opens when pressure has reached the required pressure. Any excess flow is returned by a dedicated line to the base of the engine for scavenging.

Which of the following would be classed as prudent when carrying out Engine Ground Runs?

• Only carry out engine runs with a tailwind.

• Fit debris guards when running.

• Only do ground runs on tarmac.

• Only do ground runs on concrete.

In a multispool engine, which spool does the starter rotate?

• High pressure spool.

• Low pressure spool

• Experimental spool

• Differential spool

Failure of the engine to light up is shown by:

• the failure of the engine to turn and no TGT

• low rpm fuel flow indication, and no TGT

• TGT increasing but no rpm

• no rpm and no TGT

After engine start, the engine igniters are normally deactivated by:

• an electric interlock system

• a speed switch

• the time switch

• centrifugal force

The term “self sustaining speed” means that:

• the aircraft can roll forward with no further opening of the throttles

• the speed from which the engine can accelerate to idle without the help of the starter motor

• the speed from which the engine can accelerate to full power within 5 seconds

• the engine will run independently of external help