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.Management Sciences
Category: Strength of Materials
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
A riveted joint in which the number otrivets decrease from innermost to outer most row is called__________________?
A. chain riveted joint
B. diamond riveted joint
C. criss-cross riveted joint
D. zig-zag riveted joint
E. none of the above
For steel, the ultimate strength in shear as compared to in tension is nearly _________________?
A. same
B. half
C. one-third
D. two-third
E. one-fourth
Longitudinal stress in a thin cylinder is__________________?
A. equal to the hoop stress
B. twice the hoop stress
C. half of the hoop stress
D. one-fourth of hoop stress
E. four times the hoop stress
Which of the following has no unit __________________?
A. kinematic viscosity
B. surface tension
C. bulk modulus
D. strain
E. elasticity
A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of___________________?
A. r/2
B. r/A
C. r/%
D. 0.134 r
E. 3r/8
A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?
A. uniform throughout
B. increase uniformly
C. first increase and then decrease
D. increase uniformly first and then increase rapidly
E. increase rapidly first and then uniformly
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