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Machine Design

Machine Design
Rankine's theory of failure is applicable for following type of materials

Plastic
Brittle
Elastic
Ductile

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

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

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Machine Design
The valve rod in a steam engine is connected to an eccentric rod by

Cotter joint
Knuckle joint
Universal coupling
Bolted joint

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Machine Design
The included angle for the British Association thread is

29°
60°
55°
47.3°

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Machine Design
The ball bearings are provided with a cage

To facilitate slipping of balls
To reduce friction
To maintain the balls at a fixed distance apart
To prevent the lubricant from flowing out

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Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/4
d/2
3d/4
d/3

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