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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Cobalt and molybdenum
Nickel and chromium
Chromium
Nickel

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Machine Design
The dedendum is the radial distance from the

Pitch circle to the bottom of a tooth
Addendum circle to the clearance circle
Pitch circle to the top of a tooth
Top of a tooth to the bottom of a tooth

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Machine Design
A connecting rod is designed as a

Long column
Short column
All of these
Strut

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Machine Design
If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio

Decreases
None of these
Increases
Remains unchanged

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Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

25°
5°
15°
8°

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Machine Design
The ratio of pitch circle diameter in millimeters to the number of teeth, is called

Module
None of these
Circular pitch
Diametral pitch

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