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Machine Design

Machine Design
The most important dimension in the design of a nut is

Inside diameter
Height
Outside diameter
Pitch diameter

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Machine Design
Auto frettage is the method of

Calculating stresses in thick cylinders
Pre-stressing thick cylinders
Increasing the life of thick cylinders
Joining thick cylinders

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Machine Design
The groove angle of pulleys for V-belt is

More than 400
340 to 360
420 to 450
300 to 320

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Machine Design
A tapered key which fits in a key way in the hub and is flat on the shaft, is known as

Gib-head key
Flat saddle key
Feather key
Wood ruff key

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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
sinθ cosθ
1/cosθ
1/sinθ

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Machine Design
A V-belt designated as B 4430 LP has

4430 mm as centre distance between pulleys
4430 mm as nominal pitch length
4430 mm as diameter of large pulley
4430 mm as diameter of small pulley

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