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Machine Design

Machine Design
A backing ring is used inside the pipe joint when making a

Butt weld
Socket weld
Fillet weld
Sleeve weld

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Machine Design
Guest's theory of failure is applicable for following type of materials

Ductile
Plastic
Brittle
Elastic

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Machine Design
If a bearing is designated by the number 305, it means that the bearing is of

Medium series whose bore is 5 mm
Light series whose bore is 25 mm
Medium series whose bore is 25 mm
Light series whose bore is 5 mm

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Machine Design
Tensile strength of a mild steel specimen can be roughly predicted from following hardness test

Vickers
Brinell
Rockwell
None of these

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Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.8 d
0.5 d
1.2 d
d

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Machine Design
The process extensively used for making bolts and nuts is

Hot piercing
Cold heading
Extrusion
Cold peening

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