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Machine Design

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

None of these
Same
Double
Half

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Machine Design
Basic shaft is one

Whose lower deviation is zero
Whose upper deviation is zero
Does not exist
Whose lower as well as upper deviations are zero

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

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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.

Twice
Equal to
Four times
Three times

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Machine Design
The bearing characteristic number in a hydrodynamic bearing depends upon

Length, width and load
Viscosity, speed and bearing pressure
Viscosity, speed and load
Length, width and speed

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Machine Design
Which of the following pipe joints would be suitable for pipes carrying steam?

Threaded
Flanged
Bell and spigot
Expansion

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