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Machine Design

Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.5 d
d
0.8 d
1.2 d

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Machine Design
Which of the following is an anti-friction bearing?

Pedestal bearing
Collar bearing
Needle bearing
Journal bearing

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Machine Design
Wahl's stress factor __________ very rapidly as the spring index decreases.

Remain same
None of these
Increases
Decreases

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

(6V/ π)1/2
(6V/ π)3
(6V/ π)2
(6V/ π)1/3

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Machine Design
The longitudinal joint in boilers is used to get the required

Length and diameter of boiler
Efficiency of boiler
Length of boiler
Diameter of boiler

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Machine Design
The sleeve or muff coupling is designed as a

Dun cylinder
Thick cylinder
Hollow shaft
Solid shaft

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