

MCQOPTIONS
Saved Bookmarks
1. |
In a block brake, when the fulcrum point is below the line of action of friction point, the ratio of effort required for clockwise and counter clockwise rotation is____. |
A. | equal to 1 |
B. | greater than 1 |
C. | less than 1 |
D. | unpredictable |
Answer» D. unpredictable | |