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Machine Design

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

Elastic
Plastic
Ductile
Brittle

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Machine Design
A tapered key which fits in a key way in the hub and is flat on the shaft, is known as

Feather key
Flat saddle key
Wood ruff key
Gib-head key

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Machine Design
A connecting rod is designed as a

Long column
Strut
Short column
All of these

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Machine Design
The maximum shear stress theory is used for

Nonferrous materials
Brittle materials
Ductile materials
Plastic materials

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Machine Design
Surface endurance limit of gear material is dependent upon its

Elastic strength
Brinell hardness number
Toughness
Yield strength

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Machine Design
In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by

Decreasing the cross-section area of bar
Remain unaffected with cross-section area
Would depend upon other factors
Increasing the cross-section area of bar

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