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Machine Design

Machine Design
The suitable material for belt in agricultural machinery is

Balata gum
Cotton duck
Leather
Rubber

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Machine Design
If the centre distance of the mating gears having involute teeth is increased, then the pressure angle

Remains unchanged
None of these
Decreases
Increases

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Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

8°
15°
25°
5°

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Machine Design
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

Either A or B
Fully
None of these
Partially

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Machine Design
Guest's theory is used for

Brittle materials
Ductile materials
Elastic materials
Plastic materials

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

Band and block brake
Shoe brake
Internal expanding brake
Band brake

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