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Machine Design

Machine Design
If two springs are in parallel then their overall stiffness will be

None of these
Double
Same
Half

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Machine Design
Two shafts will have equal strength, if

Angle of twist of both the shafts is same
Diameter of both the shafts is same
Twisting moment of both the shafts is same
Material of both the shafts is same

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force)

3 Pc
Pc/3
2 Pc
1 Pc

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Machine Design
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to

Reduce vibration
Ensure proper alignment
Reduce slip
Ensure uniform loading

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Machine Design
According to Indian standard specifications, a Grey cast iron designated by 'FG 200' means that the

Maximum compressive strength is 200 N/mm²
Maximum shear strength is 200 N/mm²
Minimum tensile strength is 200 N/mm²
Carbon content is 2%

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Machine Design
For low and moderate speed engines, the cam follower should move with

Uniform velocity
Uniform acceleration and retardation
Simple harmonic motion
Cycloidal motion

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