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
Correct Answer: prevent the rotation of load being lifted
For the prevention of the rotation of load being lift, the load cup of a screw jack is made separate from the head of the spindle.