In a screw jack, the effort required to lift the load W is given by – McqOptions

MCQOPTIONS

1.	In a screw jack, the effort required to lift the load W is given by
A.	P = W tan (α – ɸ)
B.	P = W tan (α + ɸ)
C.	P = W tan (ɸ – α)
D.	P = W cos (α + ɸ)
Answer» C. P = W tan (ɸ – α)

Discussion

No Comment Found

Related MCQs

The efficiency of the a screw jack is maximum, when
In a screw jack, the effort required to lower the load W is given by
In a screw jack, the effort required to lift the load W is given by
A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by
THE_LOAD_CUP_OF_A_SCREW_JACK_IS_MADE_SEPARATE_FROM_THE_HEAD_OF_THE_SPINDLE_TO?$
The_efficiency_of_the_a_screw_jack_is_maximum,_when$
Efficiency of a screw jack is given b?
The frictional torque for square thread at the mean radius r while raising load W is given by
The coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.
A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is ‚âà√≠¬¨¬±. The effort applied parallel to the plane is given by$