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Machine Design

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
43869
43929
44045

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Machine Design
The size of a gear is usually specified by

Diametral pitch
Pitch circle diameter
Circular pitch
Pressure angle

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Machine Design
A screw will be self locking, if

Friction angle is more than helix angle
Friction angle is less than helix angle
Efficiency of screw is 100%
Friction angle is equal to helix angle

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Machine Design
Which of the following has threads at both ends?

Tap bolt
Bolt
None of these
Stud

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Machine Design
According to I.B.R., the thickness of the boiler shell should not be less than

6 mm
7 mm
5 mm
4 mm

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Machine Design
In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)

d + 17 mm
2d + 20 mm
2d + 13 mm
3.5d

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