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Machine Design

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

Castle nut
Jam nut
Sawn nut
Ring nut

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Machine Design
The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is

1 micron
0.01 micron
10 microns
0.1 micron

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Machine Design
In order to permit the thermal expansion/contraction of tubing, it should be

Flared
Crimped
Honed
Bent

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Machine Design
In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing.

Either A or B
Thick film
None of these
Thin film

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Machine Design
While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as

One end fixed and the other end hinged
Both the ends hinged
One end fixed and the other end free
Both the ends fixed

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Machine Design
Gear box is used

To obtain variable speeds
To produce torque
To increase efficiency of system
For speed reduction

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