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Machine Design

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

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

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Machine Design
The included angle for the V-belt is usually

30°-40°
40°-60°
60°-80°
10°-20°

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

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

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Gib of cotter joint
Spigot socket cotter joint
Sleeve and cotter joint
Knuckle joint

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Machine Design
Wire ropes as compared to cotton ropes

Offer silent operation
All of these
Are lighter in weight
Can withstand shock loads

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Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Back pitch
Pitch
Diagonal pitch
Margin

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