FOR_A_POWER_SCREW_HAVING_SQUARE_THREADS_WITH_LEAD_ANGLE_OF_450_AND_COEFFICIENT_OF_FRICTION_OF_0.15_BETWEEN_SCREW_AND_NUT,_THE_EFFICIENCY_OF_THE_POWER_SCREW,_NEGLECTING_COLLAR_FRICTION,_IS_GIVEN_BY?$

FOR_A_POWER_SCREW_HAVING_SQUARE_THREADS_WITH_LEAD_ANGLE_OF_450_AND_COE

1.	FOR_A_POWER_SCREW_HAVING_SQUARE_THREADS_WITH_LEAD_ANGLE_OF_450_AND_COEFFICIENT_OF_FRICTION_OF_0.15_BETWEEN_SCREW_AND_NUT,_THE_EFFICIENCY_OF_THE_POWER_SCREW,_NEGLECTING_COLLAR_FRICTION,_IS_GIVEN_BY?$
A.	74%
B.	64%
C.	54%
D.	44%
Answer» B. 64%

Discussion

No Comment Found

Related MCQs

For a power screw having square threads with lead angle of 450 and coefficient of friction of 0.15 between screw and nut, the efficiency of the power screw, neglecting collar friction, is given by
Centrifugal clutches are designed to provide automatic and smooth engagement of load to driving member.
The axial force (We) required for engaging a cone clutch is given by
In case of a multiple disc clutch, if n1 are the number of discs on the driving shaft and n2 are the number of the discs on the driven shaft, then the number of pairs of contact surfaces will be
A jaw clutch is essentially a
If number of contacting surfaces are 5, then number of disks required in multi disk clutch are?
A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform pressure theory, calculate the torque transmitting capacity of the clutch.
A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform pressure theory, calculate the operating force in the clutch.
A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform wear theory, calculate the power transmitting capacity of the clutch at 80rad/s.
A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform wear theory, calculate the torque transmitting capacity of the clutch.

FOR_A_POWER_SCREW_HAVING_SQUARE_THREADS_WITH_LEAD_ANGLE_OF_450_AND_COEFFICIENT_OF_FRICTION_OF_0.15_BETWEEN_SCREW_AND_NUT,_THE_EFFICIENCY_OF_THE_POWER_SCREW,_NEGLECTING_COLLAR_FRICTION,_IS_GIVEN_BY?$

Discussion

No Comment Found

Related MCQs

Reply to Comment