Google News
logo
Mechanical Engineering : Machine Design - Quiz(MCQ)
What will be efficiency of the screw in case of raising the load when coefficient of friction is 0.1553 and tangent of helix angle is 0.0813?
A)
34%
B)
43%
C)
45%
D)
54%

Correct Answer : Option (A) :   34%


Explanation : Efficiency= taná¼€(1-0.1553 x tan á¼€)/(0.1553+taná¼€).

Advertisement