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Question
To keep machines running smoothly and to avoid wear and tear of machines, the best and the most commonly used lubricant is:
To keep machines running smoothly and to avoid wear and tear of machines, the best and the most commonly used lubricant is:
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Solution
The correct option is C Oil
Oil is the best and the most commonly used lubricant used for keeping machines running smoothly and to avoiding wear and tear of machines as it reduces the friction more effectively.
Oil is the best and the most commonly used lubricant used for keeping machines running smoothly and to avoiding wear and tear of machines as it reduces the friction more effectively.
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