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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.

Greater
Smaller
None of these
Medium

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Machine Design
Which of the following bearing is preferred for oscillating conditions?

Needle roller bearing
Angular contact single row ball bearing
Double row roller bearing
Taper roller bearing

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Machine Design
A connecting rod is designed as a

All of these
Short column
Long column
Strut

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Machine Design
The stretching in a belt can be controlled by __________ the stress in the belt.

Reducing
Both A and B
None of these
Increasing

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If σt is the tensile stress for the shell material, then thickness of shell is equal to

pd/σt
pd/3σt
pd/4σt
pd/2σt

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Machine Design
When two helical springs of equal lengths are arranged to form a cluster spring, then

Both A and B is correct
Shear stress in each spring will be equal
Only A is correct
Load taken by each spring will be half the total load

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