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Objective Questions
Engineering
Mechanical
ME Set-1
Strength of Materials
186

Strength of Materials MCQ with Answers

186) Factor of safety is defined as the ratio of

ultimate stress to working stress

working stress to ultimate stress

breaking stress to ultimate stress

ultimate stress to breaking stress

Answer is:

ultimate stress to working stress

Explanation:

The ratio of ultimate stress to the working stress is known as factor of safety. Its value is more than one.

Strength of Materials MCQ with Answers

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Related Strength of Materials MCQ with Answers

187) In compression test, the fracture in cast iron specimen would occur along

the axis of load

an oblique plane

at right angles to the axis of specimen

would not occur

Answer is:

an oblique plane

188) Fatigue test is carried out for

stresses varying between two limits of equal value, but of opposite sign

stresses varying between two limits of unequal value, but of opposite sign

stresses varying between two limits of unequal value but of same sign

all of the above

Answer is:

all of the above

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