For the brake to be self locking, the force P at C shown in the below

1.	For the brake to be self locking, the force P at C shown in the below figure, should
A.	be zero
B.	act in upward direction
C.	act in downward direction
D.	none of these
Answer» B. act in upward direction

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For the brake to be self locking, the force P at C shown in the below figure, should

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