Why should a driver never apply full throttle on a cold engine immediately after starting?
Answer and explanation
Correct answer: C. Cold engine oil is thick and flows slowly, leading to metal-to-metal wear
- Step 1: Cold engine lubrication. Step 2. Engine oil takes time to circulate fully and reach operating temperature; hard revving on cold oil causes severe friction wear on pistons and bearings. Answer: Cold engine oil is thick and flows slowly, leading to metal-to-metal wear. Why not the others: Cold engine does not lock steering; alternator does not catch fire; catalytic converters do not explode.
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More Driving Safety, Emergency Response and Vehicle Operation questions
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