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Machine Design

Machine Design
Which one of the following is a positive drive?

Chain drive
Rope drive
Crossed flat belt drive
V-belt drive

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Machine Design
The function of cutting oil when threading a pipe is to

Provide cooling action
Lubricate the dies
Help removes chips
All of these

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

3-15 m/s
1-3 m/s
30-50 m/s
15-30 m/s

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Gib of cotter joint
Spigot socket cotter joint
Knuckle joint
Sleeve and cotter joint

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Machine Design
Pick up wrong statement. Fatigue strength can be increased by

Cold working
Hot working
Shot peening
Grinding and lapping surface

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Machine Design
In case of pressure vessels having closed ends, the fluid pressure induces

Shear stress
Circumferential stress
Longitudinal stress
None of these

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