

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 | |