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Machine Design

Machine Design
Taper usually provided on cotter is

1 in 5
1 in 10
1 in 40
1 in 24

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Machine Design
Stress concentration factor is defined as the ratio of

Nominal stress to the endurance limit
Maximum stress to the endurance limit
Nominal stress to the maximum stress
Maximum stress to the nominal stress

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Machine Design
For crank shaft bearings, the ratio of the length of the journal to its diameter is_________.

Greater than unity
Equal to 1
Less than unity
None of these

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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)

3 d
5 d
2 d
4 d

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Machine Design
Which of the following pipe joints would be suitable for pipes carrying steam?

Bell and spigot
Expansion
Threaded
Flanged

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Machine Design
A type of brake commonly used in motor cars is a

Band brake
Shoe brake
Internal expanding brake
Band and block brake

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