The endurance limit of a material with finished surface in comparison to rough surface is_________________?
		A. more
B. less
C. same
D. more or less depending on quantum of load
E. unpredictable
		A. more
B. less
C. same
D. more or less depending on quantum of load
E. unpredictable
		A. self locking bolts
B. designed for shock load
C. used in aircraft application
D. provided with hexagonal depression in head
E. uniform strength bolts
		A. diameter of bolt
B. 0.75 x diameter of bolt
C. 1.25 x diameter of bolt
D. 1.5 x diameter of bolt
E. 0.5 x diameter of bolt
		A. brittle
B. ductile
C. elastic
D. plastic
E. tough
		A. to produce torque
B. for speed reduction
C. to obtain variable speeds
D. to increase efficiency of system
E. to damp out vibrations
		A. decreasing the cross-section area of’ bar
B. increasing the cross-section area of bar
C. remain unaffected with cross-section area
D. would depend upon other factors
E. none of the above
		A. same
B. 1/2
C. 1/3
D. 1/4
E. 2/3