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Machine Design

Machine Design
The material commonly used for machine tool bodies is

Cast iron
Aluminium
Mild steel
Brass

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Machine Design
Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material.

Shear strength
None of these
Yield strength
Elastic strength

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Machine Design
The pipe joint mostly used for pipes carrying water at low pressures is

Spigot and socket joint
Socket joint
Union joint
Nipple joint

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Machine Design
The connecting rod bolts are tightened up so that tightening stress

Is about yield point divided by safety factor
Approaches yield point
Is 50% of yield point
Is just sufficient to hold parts together

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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)

0.5 d
1.2 d
0.8 d
d

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Machine Design
The suitable material for belt in agricultural machinery is

Rubber
Balata gum
Cotton duck
Leather

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