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Machine Design

Machine Design
If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to

0.2
0.25
0.6
0.5

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Machine Design
The shock absorbing capacity of a bolt can be increased by

Increasing shank diameter
Making shank diameter equal to core diameter of thread
Tightening it properly
Grinding the shank

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Machine Design
According to Indian standards, total numbers of fundamental deviations are

15
10
25
20

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Machine Design
When the belt is transmitting maximum power, the belt speed should be (Where, m = mass of belt per meter (kg/m) and Pmax = maximum permissible tension in belt (N))

√(3m /Pmax)
√(Pmax / 2m)
√(Pmax / 3m)
√(Pmax / m)

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Machine Design
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

Diametral pitch
Module
Axial pitch
Normal pitch

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Machine Design
The valve rod in a steam engine is connected to an eccentric rod by

Cotter joint
Bolted joint
Knuckle joint
Universal coupling

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