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Machine Design

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

90°
45°
22.5°
67.5°

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Machine Design
Which of the following pipe joints would be suitable for pipes carrying steam?

Threaded
Bell and spigot
Expansion
Flanged

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Machine Design
A type of brake commonly used in motor cars is a

Band and block brake
Band brake
Shoe brake
Internal expanding brake

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Machine Design
Maximum principal stress theory is applicable for

All of these
Elastic materials
Ductile materials
Brittle materials

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Machine Design
The spring mostly used in gramophones is

Volute spring
Conical spring
Helical spring
Flat spiral spring

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Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

Equal to
None of these
Greater than
Less than

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