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Machine Design

Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/3
d/4
3d/4
d/2

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Machine Design
The taper on key is given on

Any side
Top side only
Bottom side only
On both sides

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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

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

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Machine Design
Guest's theory is used for

Ductile materials
Plastic materials
Brittle materials
Elastic materials

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Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

Equal to 1/10
Greater than 1/10
None of these
Less than 1/10

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Machine Design
The contact ratio for gears is

Greater than one
Zero
None of these
Less than one

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