One of the periodic maintenance tasks that should be performed on a vehicle is to:

1. wash the floor mats to prevent rust
2. replace the radiator water monthly
3. wash the tires to prevent skidding
4. replace the oil and air filtersCorrect answer!

Explanation

The correct answer is option 4 (replace the oil and air filters). This question assesses Basic mechanics; this choice directly satisfies the conditions in the question and road-safety rules. The other choices broaden, narrow, or depart from the stated conditions, so they should not be selected. Under the current rule, the difficulty is 2 on a scale of 1 to 5.

Source

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