WAEC Data Processing 2025 Objective — Question 30

Question 30 of 40 from the West African Examinations Council (WAEC) Data Processing 2025 Objective paper, with the correct answer and a full explanation.

Preventive maintenance measures in the computer room include the following except

A. good ventilation
B. maintaining dust-free environment
C. proper illumination
D. the use of rugs on the floorCorrect

Explanation

The use of rugs on the floor is incorrect because rugs can generate static electricity (harmful to electronic components) and trap dust that can harm hardware.

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