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Machine Design

Machine Design
A screw is specified by its

Pitch diameter
Minor diameter
Pitch
Major diameter

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Machine Design
A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be

15 mm
25 mm
10 mm
5 mm

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Machine Design
The static tooth load should be __________ the dynamic load.

None of these
Less than
Equal to
Greater than

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Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

2
4
8
16

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Machine Design
Cast iron pipes are mainly used

In pressure lubrication systems on prime movers
In water and sewage systems
For conveying steam
All of these

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Machine Design
According to Indian standards, total numbers of tolerance grades are

20
12
18
8

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