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Machine Design

Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Working depth
Clearance
Dedendum
Addendum

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Machine Design
In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)

3.5 d
2d + 13 mm
d + 17 mm
2d + 20 mm

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Machine Design
The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to

3/ (3 + v)
0.75/ (0.75 + √v)
4.5/ (4.5 + v)
6/ (6 + v)

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Machine Design
The sleeve or muff coupling is designed as a

Hollow shaft
Solid shaft
Thick cylinder
Dun cylinder

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Machine Design
Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to

Dynamic loading
Combined static and dynamic loading
Completely reversed loading
Static loading

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Machine Design
Three different weights fall from a certain height under vacuum. They will take

Same time to reach earth
Times proportional to weight to reach earth
None of these
Times inversely proportional to weight to reach earth

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