Question 19 of 30
Piston in a Diesel engine _______
A
Stays in place
B
Moves up and down
C
Oscillates
D
Rotates in place
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Answer & Explanation
The correct answer is Option B: Moves up and down.
In a diesel engine's operational cycle, the piston is designed to reciprocate, meaning it moves linearly up and down within the cylinder. This reciprocating motion is fundamental to converting the energy from fuel combustion into rotational mechanical work via the crankshaft.