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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Counter sunk head
Conical head
Snap head
Pan Head

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

25°
5°
15°
8°

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Machine Design
In a steam engine, the valve rod is connected to an eccentric rod by means of

Flange coupling
Universal joint
Knuckle joint
Cotter joint

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Machine Design
A bench vice has following type of threads

Metric
Square
Acme
Buttress

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Machine Design
According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

M8 - 6d
M6 - 8d
M6
M8

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Machine Design
The endurance limit of a material with finished surface in comparison to rough surface is

Less
More or less depending on quantum of load
More
Same

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