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Machine Design

Machine Design
Shear stress theory is applicable for

Ductile materials
All of these
Brittle materials
Elastic materials

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

2 d
5 d
4 d
3 d

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Machine Design
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called

Clearance
Face width
Working depth
Backlash

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Machine Design
If two springs are in parallel then their overall stiffness will be

Same
Half
Double
None of these

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Machine Design
Shaft coupling is used in machinery to

Introduce protection against over loads
Introduce mechanical flexibility
All of these
Reduce the transmission of shock loads

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Machine Design
Auto frettage is the method of

Increasing the life of thick cylinders
Calculating stresses in thick cylinders
Pre-stressing thick cylinders
Joining thick cylinders

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