Mech Svcs Tut 17-20

One of the functions of a lubrication system of a petrol engine is to remove

• water

• petrol

• lubricating oil

• unwanted heat

A simple splash lubrication system for an engine uses

• dipper to supply oil

• a pump to supply oil

• compressed air to supply oil

• compressed gas to supply oil

The force feed lubrication system for an engine uses

• dipper to supply oil

• a pump to supply oil

• compressed air to supply oil

• compressed gas to supply oil

To release the pressure in the crankcase of an engine,

• crankcase heater is required

• crankcase breather is required

• crankcase pump is required

• crankcase oil filter is required

Engine lubrication oil needs to be changed periodically to

• maintain oil volume

• maintain oil temperature

• maintain oil pressure

• maintain good lubricating quality

When changing the oil and the oil filter of a petrol engine, always

• cool the engine first

• mix the oil with water

• warm up the engine first

• mix the oil with kerosene

Lubricating oil in 2-stroke engine is

• mixed with air

• mixed with water

• mixed with petrol

• mixed with oxygen

Contaminant in lubrication oil which causes the engine wear can be removed by

• crankcase

• oil filter

• piston

• crankcase breather

One of the functions of lubrication is to

• reduce noise

• provide heating

• increase friction

• increase corrosion

Which one of the following is the part of an engine which has to be lubricated?

• camshaft

• piston

• timer

• wheels