Machine Design MCQ Question with Answer

Machine Design MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 22
The creep in the belt is due to

Effect of temperature on belt

Material of belt

Unequal extensions in the belt due to tight and slack side tensions

Stresses beyond elastic limit of belt material

Question No : 23
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

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Question No : 24
The power transmitted by belt drive depends upon

Belt velocity

Initial belt tension

Arc of contact

All of the above

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Question No : 25
For high speed engines, the cam follower should move with

Uniform velocity

Simple harmonic motion

Uniform acceleration and retardation

Cycloidal motion

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Question No : 26
In the assembly of pulley, key and shaft

Pulley is made the weakest

Key is made the weakest

Key is made the strongest

All the three are designed for equal strength

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Question No : 27
Transverse fillet welded joints are designed for

Tensile strength

Compressive strength

Shear strength

Bending strength

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Question No : 28
Factor of safety for fatigue loading is the ratio of

Elastic limit to the working stress

Elastic limit to the yield point

Endurance limit to the working stress

Young's modulus to the ultimate tensile strength

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