

MCQOPTIONS
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1. |
The_load_cup_of_a_screw_jack_is_made_separate_from_the_head_of_the_spindle_to$ |
A. | enhance the load carrying capacity of the jack |
B. | reduce the effort needed for lifting the working load |
C. | reduce the value of frictional torque required to be countered for lifting the load |
D. | prevent the rotation of load being lifted |
Answer» E. | |