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Machine Design

Machine Design
A cotter joint is used to connect two __________ rods.

None of these
Parallel
Co-axial
Perpendicular

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Machine Design
In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.

Four times
Twice
Three times
Equal to

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

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

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Machine Design
The objective of caulking in a riveted joint is to make the joint

Stronger in tension
Free from stress
Leak-proof
Free from corrosion

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Machine Design
Three different weights fall from a certain height under vacuum. They will take

Times inversely proportional to weight to reach earth
Times proportional to weight to reach earth
Same time to reach earth
None of these

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Machine Design
The root angle of a bevel gear is equal to

Pitch angle + dedendum angle
Pitch angle + addendum angle
Pitch angle - dedendum angle
Pitch angle - addendum angle

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