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Machine Design

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Same
Very fine
Finer
Coarser

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Machine Design
The dynamic tooth load is due to

Irregularities in tooth profiles
All of these
Inaccuracies of tooth spacing
Deflections of teeth under load

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Machine Design
For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is

1/tanθ
1/cosθ
1/sinθ
sinθ cosθ

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Machine Design
A locking device extensively used in automobile industry is a

Jam nut
Ring nut
Sawn nut
Castle nut

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Machine Design
The suitable material for belt used in flour mill is

Canvas or cotton duck
Balata gum
Rubber
Leather

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Machine Design
Rankine's theory is used for

Elastic materials
Ductile materials
Plastic materials
Brittle materials

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MORE MCQ ON Machine Design

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