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Machine Design

Machine Design
Shear stress theory is applicable for

Elastic materials
Ductile materials
Brittle materials
All of these

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

Brittle
Plastic
Ductile
Elastic

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Machine Design
When a helical compression spring is cut into halves, the stiffness of the resulting spring will be

One-half
Double
Same
One-fourth

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Machine Design
Rankine's theory is used for

Brittle materials
Ductile materials
Plastic materials
Elastic materials

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Machine Design
The ball bearings are provided with a cage

To prevent the lubricant from flowing out
To reduce friction
To maintain the balls at a fixed distance apart
To facilitate slipping of balls

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Machine Design
When spring index increases, the value of Wahl's stress factor

Increases exponentially
Decreases linearly
Increases linearly
Remains same

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MORE MCQ ON Machine Design

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