Results
Q1. From the following list select the correct combination of statements.The primary tasks of lubrication are to:1. reduce friction2. cool the engine3. clean the engine4. reduce component wear5. act as a hydraulic medium
Correct answer is – 1 and 4.
Q2. In a piston engine dry sump oil system, the oil temperature and pressure are sensed:
Correct answer is – for the temperature when the oil is leaving the tank, and for the pressure when the oil is leaving the pressure pump.
Q3. Oil returning to the oil tank is filtered by:
Correct answer is – the scavenge filter.
Q4. Engine oil pressure is:
Correct answer is – relatively unaffected by engine speed.
Q5. The purpose of the crankcase breather is to:
Correct answer is – prevent pressure building up inside the crankcase.
Q6. The most probably cause of small fluctuations in the oil pressure would be:
Correct answer is – the pressure relief valve sticking.
Q7. The extra space in the oil tank is to cater for:
Correct answer is – frothing and aeration of the oil as it passes through the engine.
Q8. The scavenge pump system in a lubrication system has:
Correct answer is – a larger capacity than the pressure pump.
Q9. In a “wet sump” oil system, the oil is contained in the:
Correct answer is – engine and sump.
Q10. The oil contents of a piston engine (wet sump) are checked:
Correct answer is – after approximately 15 minutes once the engine has stopped.
