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Machine Design

Machine Design
In radial bearings, the load acts __________ to the axis of rotation.

Perpendicular
Both A and B
Parallel
None of these

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Machine Design
The ratio of endurance limit in shear to the endurance limit in flexure is

0.33
0.5
0.4
0.55

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

Bolted joint
Cotter joint
Universal coupling
Knuckle joint

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Machine Design
Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Four times
Sixteen times
Eight times
Twice

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Machine Design
A column of length l is fixed at both ends. The equivalent length of the column is

l
l/2
l/√2
2 l

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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))

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

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