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WAEC Data Processing 2020 Question 27

Question 27

Computer Maintenance

Which of the following substances is used for cleaning the mouse ball?

  1. A.Distilled water.
  2. B.Engine oil.
  3. C.Isopropyl alcohol.
  4. D.Kerosene.
Show the answer and explanation

Answer: C (Isopropyl alcohol.)

Explanation

Isopropyl alcohol cleans dirt off the ball and rollers and dries quickly.