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Machine Design

Machine Design
The strength of the unriveted plate (P) per pitch length is equal to

(p - d) σt
p.d.σt
(p - d) t.σt
p.t.σt

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Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

1.2 d
0.8 d
1.8 d
1.57 d

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Machine Design
The rolling contact bearings are known as

Plastic bearings
Thin lubricated bearings
Thick lubricated bearings
Antifriction bearings

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Machine Design
The permissible stress for carbon steel under static loading is generally taken as

4000-4500 kg/cm²
7500-10,000 kg/cm²
3000-4000 kg/cm²
2000-3000 kg/m²

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Machine Design
The radial distance from the __________ to the clearance circle is called working depth.

Pitch circle
None of these
Dedendum circle
Addendum circle

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Machine Design
A key capable of tilting in a recess milled out in a shaft is known as

Feather key
Flat saddle key
Woodruff key
Hollow saddle key

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