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Machine Design

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

22.5°
90°
45°
67.5°

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Machine Design
The rolling contact bearings are known as

Antifriction bearings
Thick lubricated bearings
Plastic bearings
Thin lubricated bearings

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Machine Design
A chain drive transmits __________ power as compared to belt drive.

Same
More
Less
None of these

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Machine Design
For steel, the ultimate strength in shear as compared to ultimate strength in tension is

43864
43834
43832
43833

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Machine Design
A backing ring is used inside the pipe joint when making a

Sleeve weld
Fillet weld
Socket weld
Butt weld

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Machine Design
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Zero film bearing
Hydrostatic lubricated bearing
Boundary lubricated bearing
Hydrodynamic lubricated bearing

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