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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