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Engineering
Mechanical
ME Set-3
Theory of Machines
77

Theory of Machines MCQ with Answers

77) The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be

same in both cases

2 times more

3 times more

4 times more

Answer is:

3 times more

Theory of Machines MCQ with Answers

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Related Theory of Machines MCQ with Answers

78) The fatigue life of a part can be improved by

electroplating

polishing

coating

shot peening

Answer is:

shot peening

79) Stress concentration in static loading is more serious in

ductile materials

brittle materials

equally serious in both cases

depends on other factors

Answer is:

brittle materials

80) Stress concentration in cyclic loading is more serious in

ductile materials

brittle materials

equally serious in both cases

depends on other factors

Answer is:

ductile materials

81) 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

dynamic loading

static loading

combined static and dynamic loading

completely reversed loading

Answer is:

completely reversed loading

Theory of Machines MCQ with Answers

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