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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)

0.8 d
0.5 d
1.2 d
d

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

40 to 50%
30 to 40%
20 to 30%
10 to 20%

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Machine Design
Which process will increase the fatigue duration of parts?

Shot-peening
Finishing and polishing
Electroplating
De-carburisation

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Machine Design
For general industrial machinery, the ratio of the length of journal to its diameter is taken as

0.5 to 1
1 to 2
3 to 5
5 to 10

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Machine Design
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)

p = D sin (180°/T)
p = D sin (360°/T)
p = D sin (120°/T)
p = D sin (90°/T)

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Machine Design
A locking device extensively used in marine type connecting rod ends is a

Ring nut
Sawn nut
Castle nut
Jam nut

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