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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Nickel
Chromium
Nickel and chromium
Cobalt and molybdenum

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Machine Design
The coefficient of friction between the belt and pulley depends upon the

Slip of belt
Speed of belt
All of these
Material of belt and pulley

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Machine Design
The backlash for spur gears depends upon

Pitch line velocity
Tooth profile
Module
Both module and pitch line velocity

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Machine Design
Lewis equation is applied

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

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.58
1.26
1.12
1.06

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Machine Design
The expression 0.175 - 0.841/T is the Lewis form factor for

14½° composite and full depth involute system
None of these
20° full depth involute system
20° stub system

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