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Machine Design

Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

4
16
2
8

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Machine Design
The following type of nut is used with alien bolt

Hexagonal nut
Any one of the above
Castle nut
Slotted nut

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Machine Design
Oldham coupling is used to connect two shafts

Which are perfectly aligned
Whose axes intersect at a small angle
Which have lateral misalignment
Which are not in exact alignment

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Machine Design
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Hydrostatic lubricated bearing
Hydrodynamic lubricated bearing
Zero film bearing
Boundary lubricated bearing

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Machine Design
In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.

180°
90°
135°
160°

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

Below
None of these
At
Above

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