Question 6 of 30
One of the function of lubricating oil in a diesel engine is to reduce
A
exhaust temperatures
B
friction between moving parts
C
wexhaust gases
D
weight of the engine
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Answer & Explanation
The correct answer is Option B: friction between moving parts.
The primary function of lubricating oil in a diesel engine is to reduce friction between moving parts, thereby minimizing wear and heat generation. It also provides cooling and sealing, but friction reduction is its most crucial role.