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Machine Design

Machine Design
In a flange coupling, the flanges are coupled together by means of

None of these
Bolts and nuts
Studs
Headless taper bolts

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Machine Design
If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then formative number of teeth is written as

T cosecφ
T sec²φ
T/sec³φ
T sec³φ

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Machine Design
The function of a washer is to

Provide smooth surface in place of rough surface
Provide cushioning effect
Provide bearing area
Absorb shocks and vibrations

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Machine Design
When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as,

Worm gearing
None of these
Helical gearing
Bevel gearing

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Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44047
43929
43869
44045

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Machine Design
Failure of a material is called fatigue when it fails

Below the yield point
At the yield point
Below the elastic limit
At the elastic limit

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