Machine Design MCQ Questions & Answers

21

The coefficient of friction between the belt and pulley depends upon the

A) Material of belt and pulley B) Slip of belt C) Speed of belt D) All of these

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Answer & Solution

Answer: Option D

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22

Which one of the following loading is considered for the design of axles?

A) Bending moment only B) Twisting moment only C) Combined bending moment and twisting moments D) Combined action of bending moment, twisting moment and axial thrust

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Answer & Solution

Answer: Option A

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23

Which one of the following loading is considered for the design of axles?

A) Bending moment only B) Twisting moment only C) Combined bending moment and twisting moments D) Combined action of bending moment, twisting moment and axial thrust

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Answer & Solution

Answer: Option A

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24

A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

A) $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^{\frac{1}{2}}}$$ B) $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^{\frac{1}{3}}}$$ C) $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^2}$$ D) $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^3}$$

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Answer & Solution

Answer: Option B

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25

The groove angle of the pulley for rope drive is usually

A) 20° B) 35° C) 45° D) 60°

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Answer & Solution

Answer: Option C

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26

The valve rod in a steam engine is connected to an eccentric rod by

A) Cotter joint B) Bolted joint C) Knuckle joint D) Universal coupling

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Answer & Solution

Answer: Option C

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27

A double strap butt joint (with equal straps) is

A) Always in single shear B) Always in double shear C) Either in single shear or double shear D) Any one of these

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Answer & Solution

Answer: Option B

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28

In designing thick cylinders, the equation used is

A) Lame's equation B) Birnie's equation C) Clavarinos' equation D) All of these

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Answer & Solution

Answer: Option D

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29

The yield point in static loading is __________ as compared to fatigue loading.

A) Higher B) Lower C) Same D) None of these

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Answer & Solution

Answer: Option A

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30

The buckling load will be maximum for a column, if

A) One end of the column is clamped and the other end is free B) Both ends of the column are clamped C) Both ends of the column are hinged D) One end of the column is hinged and the other end is free

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Answer & Solution

Answer: Option B

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Machine Design MCQ Questions & Answers | Mechanical Engineering