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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.

Smaller
None of these
Greater
Medium

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Machine Design
Lewis form factor for 14½° composite and full depth involute system is (where T = Number of teeth)

0.124 - (0.684/T)
None of these
0.175 - (0.841/T)
0.154 - (0.912/T)

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Machine Design
Rankine Gordon formula for buckling is valid for

Long column
Very long column
Short column
Short and long column

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Machine Design
In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)

3.5d
2d + 20 mm
2d + 13 mm
d + 17 mm

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Machine Design
According to Indian standards, total numbers of fundamental deviations are

15
25
20
10

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Machine Design
Oil in journal bearing should be applied at the point where load is

Maximum
Any one of the above
Average
Nil or lightest

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