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Machine Design

Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

3 d
2 d
5 d
4 d

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Machine Design
The design of the pressure vessel is based on

None of these
Longitudinal stress
Hoop stress
Longitudinal and hoop stress

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Machine Design
The dynamic tooth load is due to

Inaccuracies of tooth spacing
All of these
Deflections of teeth under load
Irregularities in tooth profiles

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Machine Design
The design calculations for members subject to fluctuating loads with the same factor of safety, yield the most conservative estimates when using

Gerber relation
Goodman relation
Soderberg relation
None of these

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Machine Design
A machine part subjected to _________ is called a strut.

An axial tensile force
An axial compressive force
Any one of these
A tangential force

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Machine Design
The pitch diameter is the __________ diameter of an external or internal screw thread.

Largest
Effective
Smallest
None of these

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