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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Chromium
Cobalt and molybdenum
Nickel
Nickel and chromium

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Machine Design
Fabric belts are used in industrial applications because

They can work at high temperature
They are unaffected by moisture and humidity
They are cheap
None of these

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Machine Design
In a horizontal flat belt drive, it is customary to use

None of these
Bottom side of belt as slack side
Idler pulley
Top side of belt as slack side

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Machine Design
According to I.B.R., the distance between the rows of rivets, for equal number of rivets in more than one row for lap joint or butt joint (chain riveting) shall not be less than

2 d
2.5 d
d
1.5 d

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Machine Design
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

Ring nut
Castle nut
Jam nut
Sawn nut

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Machine Design
Lewis equation is applied

Only to the pinion
To stronger of the pinion or gear
To weaker of the pinion or gear
Only to the gear

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