Theory Test Practice Ireland

Question 1082 · Truck theory test

What is the purpose of engine oil?

Pick an answer to test yourself.

Correct answer

It lubricates the engine.

Official explanation

The purpose of engine oil is to lubricate and cool the moving parts of the engine. Refer to the vehicle handbook for further information and guidance.

Topic
Technical matters · Vehicle Mechanics
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This question also appears in the bus theory test.

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