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Machine Design

Machine Design
Guest's theory is used for

Ductile materials
Plastic materials
Brittle materials
Elastic materials

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Machine Design
If a load W is applied instantaneously on a bar; Then the stress induced in bar will

Decrease with decrease in y
Increase with increase in y
Be independent of ratio of mass of load W to mass of bar (y)
Depend on other considerations

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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

All of these
Increasing the length of bar
Decreasing the modulus of elasticity of the bar
Decreasing the cross-sectional area of the bar

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Machine Design
If a bearing is designated by the number 305, it means that the bearing is of

Light series whose bore is 5 mm
Light series whose bore is 25 mm
Medium series whose bore is 25 mm
Medium series whose bore is 5 mm

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Machine Design
In designing thick cylinders, the equation used is

All of these
Clavarinos' equation
Lame's equation
Birnie's equation

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Machine Design
The function of the washer is to

Provide cushioning effect
Absorb shocks and vibrations
Provide bearing area
Fill up the axial gap

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