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Machine Design

Machine Design
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.

Medium
None of these
Smaller
Greater

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Machine Design
The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.

Moderate
Lighter
None of these
Heavier

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Machine Design
I.S. specifies following total number of grades of tolerances

16
20
18
22

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Machine Design
A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole)

Equal to inside diameter of pipe
Less than 20d
Between 20d and 30d
Greater than 30d

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Machine Design
The maximum shear stress theory is used for

Plastic materials
Nonferrous materials
Brittle materials
Ductile materials

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Machine Design
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be

3W/A
2W/A
W/2A
W/A

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