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.Management Sciences
Category: Strength of Materials
The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?
A. same
B. more
C. less
D. more or less depending on other factors
E. unpredictable
Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunched plate in_________________?
A. tension
B. compression
C. bearing
D. any one of the above
E. none of the above
The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?
A. longitudinal stress
B. hoop stress
C. yeiled stress
D. ultimate stress
E. none of the above
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of __________________?
A. friction
B. limiting friction
C. repose
D. kinematic friction
E. static friction
The property of a material which allows it to be drawn into a smaller section is called________________?
A. plasticity
B. ductility
C. elasticity
D. malleability
E. drawabihty
Percentage reduction of area in performing tensile test on cast iron may be of the order of__________________?
A. 50%
B. 25%
C. 0%
D. 15%
E. 60%.
In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called_____________?
A. creeping
B. yielding
C. breaking
D. plasticity
E. none of the above
In a tensile test, near the elastic limit zone, the______________?
A. tensile strain increases more quickly
B. tensile strain decreases more quickly
C. tensile strain increases in proportion to the stress
D. tensile strain decreases in proportion to the stress
E. tensile strain remains constant
If a material expands freely due to heating it will develop ____________________?
A. thermal stresses
B. tensile stress
C. bending
D. compressive stress
E. no stress
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