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Machine Design MCQ Questions & Answers | Mechanical Engineering

Learn Machine Design MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Machine Design MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-10 section-2

Each section contains 100 MCQs on Machine Design .
91
Shaft coupling is used in machinery to
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
92
The stress induced in the belt is,
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Answer & Solution
Answer: Option A
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93
A connecting rod subjected to an axial load may buckle with
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Answer & Solution
Answer: Option C
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94
Wire ropes as compared to cotton ropes
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Answer & Solution
Answer: Option C
Solution:
Wire ropes are made of high-strength steel wires twisted together, giving them superior strength and toughness compared to cotton ropes.

They are capable of withstanding heavy and sudden shock loads without failing, which makes them suitable for applications like cranes, lifts, and mining operations.

Option A: Incorrect, because wire ropes are heavier, not lighter, than cotton ropes.

Option B: Incorrect, because wire ropes do not provide silent operation; cotton ropes are quieter in working.

Option D: Incorrect, because not all listed features apply to wire ropes.

Thus, the correct statement is that wire ropes can withstand shock loads.
95
In the calculation of induced shear stress in helical springs, the Wahl's stress factor is used to take care of
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Answer & Solution
Answer: Option B
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96
A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum value of bending moment that can be applied to the shaft is
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Answer & Solution
Answer: Option C
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97
In second type of levers,
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Answer & Solution
Answer: Option A
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98
The following type of nut is used with alien bolt
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Answer & Solution
Answer: Option D
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99
According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by
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Answer & Solution
Answer: Option B
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100
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board