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Machine Design

Machine Design
Crushing resistance required to crush the rivet per pitch length is

(p - d) t.σc
n.d.t.σc
p.t.σc
p.d.σc

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Machine Design
Belt slip may occur due to

Heavy load
All of these
Driving pulley too small
Loose belt

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

20
22
18
16

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Machine Design
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called

Backlash
Working depth
Clearance
Face width

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Machine Design
For crank shaft bearings, the ratio of the length of the journal to its diameter is_________.

Equal to 1
None of these
Greater than unity
Less than unity

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Machine Design
If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio

None of these
Increases
Remains unchanged
Decreases

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