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Machine Design

Machine Design
Which of the following has threads at both ends?

Tap bolt
None of these
Bolt
Stud

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Machine Design
In order to remove internal stresses produced by hardening the steel, the process usually adopted is

Spheroidizing
Tempering
Normalizing
Annealing

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Machine Design
A connecting rod subjected to an axial load may buckle with

X-axis or Y-axis as neutral axis
X-axis as neutral axis
Y-axis as neutral axis
Z-axis

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Machine Design
According to I.B.R., the factor of safety of riveted joint should not be less than

3
2
1
4

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Machine Design
Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected in series. The stiffness of an equivalent spring is given by

(k₁ k₂)/ (k₁ + k₂)
(k₁ + k₂)/ (k₁ k₂)
(k₁ - k₂)/ (k₁ k₂)
(k₁ - k₂)/ (k₁ + k₂)

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Machine Design
According to Indian standards, total numbers of tolerance grades are

18
20
8
12

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