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Machine Design

Machine Design
In most machine members, the damping capacity of the material should be

Low
High
Could be anything
Zero

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Machine Design
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

3.6 N/mm² compression
3.6 N/mm² tension
7.2 N/mm² compression
7.2 N/mm² tension

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Machine Design
The maximum shear stress theory is used for

Brittle materials
Plastic materials
Nonferrous materials
Ductile materials

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Machine Design
The smallest diameter of an external or internal screw thread is known as

Major diameter
Pitch diameter
None of these
Minor diameter

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Machine Design
Fabric belts are used in industrial applications because

None of these
They are unaffected by moisture and humidity
They can work at high temperature
They are cheap

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Machine Design
I.S. specifies following total number of grades of tolerances

22
18
20
16

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