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Machine Design

Machine Design
The fatigue life of a part can be improved by

Polishing
Coating
Electroplating
Shot peening

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Machine Design
The square threads are usually found on

Feed mechanism of machine tools
Screw cutting lathes
Railway carriage couplings
Spindles of bench vices

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Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Back pitch
Pitch
Margin
Diagonal pitch

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Machine Design
The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.

None of these
Lighter
Heavier
Moderate

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Machine Design
If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?

Maximum distortion energy theory
Maximum principal stress theory
Maximum shear stress theory
Maximum strain energy theory

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

Tempering
Spheroidizing
Normalizing
Annealing

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MORE MCQ ON Machine Design

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