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Machine Design

Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

None of these
Less than
Equal to
Greater than

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

Canvas or cotton duck
Balata gum
Rubber
Leather

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Machine Design
The coefficient of friction in belt drive depends upon

Materials of belt and pulley
Material of belt
Belt velocity
Material of pulley

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Machine Design
When two springs are in series (having stiffness K), the equivalent stiffness will be

2K
K
K/2
K/4

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Machine Design
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

Hollow key
Hollow saddle key
Soft key
None of these

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

Elastic
Plastic
Brittle
Ductile

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