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Machine Design

Machine Design
The lead angle of a worm is 22.5°. Its helix angle will be

22.5°
90°
67.5°
45°

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Machine Design
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

Normal pitch
Axial pitch
Module
Diametral pitch

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Machine Design
The dynamic tooth load is due to

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

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

Tempering
Spheroidizing
Annealing
Normalizing

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Machine Design
Wahl's stress factor __________ very rapidly as the spring index decreases.

Remain same
Increases
None of these
Decreases

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Machine Design
The property of a bearing material which has the ability to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

Bondability
Fatigue strength
Comformability
Embeddability

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