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Mechanical Engineering Mcqs

Castle nut is a locking device in which__________________?

 (A)  one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

 (B)  a slot is cut partly is middle of nut and then slot reduced by tightening a screw

 (C)  a hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

 (D)  through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin spitted and bent in reverse direction at other end

 (E)  none of the above.

Submitted By :Ali Uppal


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