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Machine Design

Machine Design
The suitable material for belt used in flour mill is

Canvas or cotton duck
Leather
Rubber
Balata gum

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Machine Design
Residual stress in materials

Is independent of external loads
Is always harmful
Becomes zero when external load is removed
Acts when external load is applied

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Machine Design
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

6
10
4
8

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Machine Design
In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders normal to the teeth, is called

Module
Diametral pitch
Axial pitch
Normal pitch

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Machine Design
A steel containing 0.8% carbon is known as

None of these
Hypo-eutectoid steel
Eutectoid steel
Hypereutectoid steel

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Machine Design
The piston rod of a steam engine is usually connected to the cross-head by means of

Universal joint
Cotter joint
Bolted joint
Knuckle joint

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