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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Pan Head
Conical head
Snap head
Counter sunk head

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Flat saddle key
Gib head key
Woodruff key
Feather key

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Machine Design
In a partial journal bearing, the angle of contact of the bearing with the journal is

270°
360°
180°
120°

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Machine Design
The draw of cotter need not exceed

5 mm
3 mm
20 mm
10 mm

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Machine Design
Wire ropes as compared to cotton ropes

All of these
Are lighter in weight
Offer silent operation
Can withstand shock loads

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Machine Design
The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

εc + 2εl
εc² + εl
εc + εl²
2εc + εl

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