 
			 
			MCQOPTIONS
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				| 1. | Which of the following is not the method to prevent rotation of a bolt while screwing a nut on or off it? | 
| A. | By keeping a square neck | 
| B. | By providing a snug | 
| C. | By keeping a lock nut | 
| D. | By inserting a pin in shank | 
| Answer» D. By inserting a pin in shank | |