A. provide cushioning effect
B. provide bearing area
C. absorb shocks and vibrations
D. provide smooth surface in place of rough surface
E. act as a locking device
Related Mcqs:
- When a nut is tightened by plaping a washer below it, the bolt will be subjected to following type of loads___________________?
A. compression
B. tension
C. shear
D. combined loads
E. all of the above - The function of cutting oil when threading a pipe is to___________________?
A. provide cooling action
B. lubricate the dies
C. help remove chips
D. all of the above
E. none of the above - If a material fails below its yield point, failure would be due to___________________?
A. straining
B. fatigue
C. creep
D. sudden loading
E. impact loading - If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to___________________?
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 - If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to___________________?
A. 0.2
B. 0.25
C. 0.50
D. 0.6
E. 0.75 - Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to________________?
A. dynamic loading
B. static loading
C. combined static and dynamic loading
D. completely reversed loading
E. all of the above - A hot short metal is_________________?
A. brittle when cold
B. brittle when hot
C. brittle under all conditions
D. ductile at high temperature
E. hard when hot - Machine screws are________________?
A. similar to small size tap bolts except that a greater variety of shapes of heads are available
B. slotted for a screw driver and generally used with a nut
C. used to prevent relative motion be-tween two parts
D. similar to stud
E. none of the above - Whether any core is required in wire ropes________________?
A. yes
B. no
C. sometimes
D. rarely
E. very often - Split nut is a locking device in which_________________?
A. one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
B. a slot is cut partly in middle of nut and then slot reduced by tightening screw
C. a hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
D. through slots are made at top and a cotter-pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end
E. none of the above
