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JSCE Basic Science 2023 Objective — Question 54

Question 54 of 100 from the Junior Secondary Certificate Examination (JSCE) Basic Science 2023 Objective paper, with the correct answer and a full explanation.

Preventive maintenance include the following EXCEPT

A. replacing worn-out partsCorrect
B. cleaning the components before operation
C. routine checking of engine parts
D. lubricating and setting the moving parts

Explanation

Replacing worn-out parts is done after wear or failure (corrective).

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