81. The value of shear stress which is induced in the shaft due to the applied couple varies
(a) from maximum at the centre to zero at the circumference
(b) from zero at the centre to maximum at the circumference
(c) from maximum at the centre to mini-mum at the cricumference
(d) from minimum at the centre to maxi-mum at the circumference
(e) none of the above.
Ans: b
82. A key is subjected to side pressure as well at shearing forces. These pressures are called
(a) bearing stresses
(b) fatigue stresses
(c) crushing stresses
(d) resultant stresses
(e) none of the above.
Ans: a
83. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
(a) increase key length
(b) increase key depth
(c) increase key width
(d) double all the dimensions
(e) none of the above.
Ans: c
84. Shear stress induced in a shaft subjected to tension will be
(a) maximum at periphery and zero at center
(b) maximum at center
(c) uniform throughout
(d) average value in center
(e) none of the above.
Ans: e
Read More Questions:
Strength of Materials - Mechanical Engineering MCQs Part1
Strength of Materials - Mechanical Engineering MCQs Part2
(a) from maximum at the centre to zero at the circumference
(b) from zero at the centre to maximum at the circumference
(c) from maximum at the centre to mini-mum at the cricumference
(d) from minimum at the centre to maxi-mum at the circumference
(e) none of the above.
Ans: b
82. A key is subjected to side pressure as well at shearing forces. These pressures are called
(a) bearing stresses
(b) fatigue stresses
(c) crushing stresses
(d) resultant stresses
(e) none of the above.
Ans: a
83. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
(a) increase key length
(b) increase key depth
(c) increase key width
(d) double all the dimensions
(e) none of the above.
Ans: c
84. Shear stress induced in a shaft subjected to tension will be
(a) maximum at periphery and zero at center
(b) maximum at center
(c) uniform throughout
(d) average value in center
(e) none of the above.
Ans: e
Read More Questions:
Strength of Materials - Mechanical Engineering MCQs Part1
Strength of Materials - Mechanical Engineering MCQs Part2
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