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Machine Design

Machine Design
In radial bearings, the load acts __________ to the axis of rotation.

Both A and B
Perpendicular
Parallel
None of these

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Machine Design
Cast iron pipes are mainly used

All of these
For conveying steam
In pressure lubrication systems on prime movers
In water and sewage systems

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Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Double
Same
None of these
Half

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Machine Design
The value of Lewis form factor used in design of gears is

Independent of size of teeth
Dependent on number of teeth of a gear
Dependent on system of teeth
All of these

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Machine Design
When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate)

π/4 × d² × tτu
t.τu
πd.t.τu
π/4 × d².τu

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Machine Design
Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment?

Universal coupling
Oldham coupling
All of these
Bushed pin type coupling

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