A. increases the seriousness of static load-ing stress concentration
B. lessens the seriousness of static load¬ing stress concentration
C. has no effect on it
D. depends on other considerations
E. none of the above
Related Mcqs:
- The property of a material which enables it to resist fracture due to high impact loads is known as__________________?
A. elasticity
B. endurance
C. strength
D. toughness
E. resilience - 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 - Rankine’s theory of failure is applicable for following type of materials___________________?
A. brittle
B. ductile
C. elastic
D. plastic
E. tough - The building up of worn and uridersized parts, subjected to repeated loads by electroplating is_____________________?
A. best method
B. extremely hazardous
C. has no effect as regards fatigue strength
D. cheapest method
E. all of the above - The included angle in unified of American National threads is___________________?
A. 60°
B. 55°
C. 47°
D. 29°
E. none of the above - The pitch of threads on a Jock nut in comparison to pitch of nut is_________________?
A. same
B. coarser
C. finer
D. very coarse
E. very fine - The shear plane in case of bolts should_________________?
A. be across threaded portion of shank
B. be parallel to axis of bolt
C. be normal to threaded portion of shank
D. never be across the threaded portion
E. none of the above - Allen bolts are___________________?
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 - In hydrostatic bearings ____________________?
A. the Oil film pressure is generated only by the rotation of the journal
B. the oil film is maintained by supplying oil under pressure
C. do not require external supply of lubricant
D. grease is used for lubrication
E. none of the above - Elastic nut is a locking device in which__________________?
A. one small 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 a screw
C. hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed 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 other end
E. none of the above
