

MCQOPTIONS
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1. |
THE__________NUT_IN_WHICH_SMALL_PIN_IS_SCREWED_IN_THE_PIECE_ADJOINING_THE_NUT_SO_THAT_IT_TOUCHES_ONE_OF_THE_FACES_OF_THE_HEXAGONAL_NUT_WHICH_IS_SUFFICIENT_TO_PREVENT_ITS_GETTING_LOOSE.?$ |
A. | Grooved nut |
B. | Penn nut |
C. | Castle nut |
D. | Ring nut |
Answer» C. Castle nut | |