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Machine Design

Machine Design
Oil in journal bearing should be applied at the point where load is

Maximum
Average
Any one of the above
Nil or lightest

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Machine Design
The endurance limit of a material with finished surface in comparison to rough surface is

Less
Same
More
More or less depending on quantum of load

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Machine Design
In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to

1.5 d
1 d
1.75 d
1.25 d

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Machine Design
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)

p = D sin (90°/T)
p = D sin (120°/T)
p = D sin (180°/T)
p = D sin (360°/T)

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Machine Design
When a close coiled helical spring is compressed, its wire is subjected to

All of these
Shear
Compression
Tension

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Machine Design
An Involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

Flanks of both gear and pinion
Tip of the gear and flank of pinion
Tip of both gear and pinion
Tip of the pinion and flank of gear

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