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Theory of Machine

Theory of Machine
A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration is

2ωv
ω²v
2ωv²
ωv

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Theory of Machine
The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is

Equal to 2
Greater than 2
Less than 2
Equal to 1

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Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

1/2π × √(g/δ)
Any one of the listed here
0.4985/√δ
1/2π × √(s/m)

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Theory of Machine
Which gear is used for connecting two coplanar and intersecting shafts?

Helical gear
Spur gear
None of these
Bevel gear

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Theory of Machine
In a pantograph, all the pairs are

Self-closed pairs
Sliding pairs
Turning pairs
Spherical pairs

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Theory of Machine
The stress induced in a body will be shear stress, when it is subjected to

Longitudinal vibrations
None of these
Transverse vibrations
Torsional vibrations

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