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Machine Design

Machine Design
A bench vice has following type of threads

Metric
Buttress
Square
Acme

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Machine Design
At low temperatures (say 75°C) the notched bar impact value of steel

Increases markedly
Remain same
Depends on heat treatment carried out
Decreases markedly

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Machine Design
The design of pin of a rocker arm of an I.C. engine is based on

Bearing failure
Shearing failure
All of these
Bending failure

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Machine Design
The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

None of these
Increases
Decreases
Remain same

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Machine Design
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

8
4
6
10

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Machine Design
18/8 steel contains

18% nickel and 8% vanadium
18% vanadium and 8% nickel
18% nickel and 8% chromium
18% chromium and 8% nickel

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