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%

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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?$

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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?$