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Theory of Machine

Theory of Machine
If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

0.5
1
2
1.5

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

Real
None of these
Equal
Complex conjugate

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Theory of Machine
A cam mechanism imparts following motion

Rotating
Oscillating
All of these
Reciprocating

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Theory of Machine
The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

An infinite distance on the plane surface
The point of contact
The point on the circumference situated vertically opposite to the contact point
The center of the disc

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Theory of Machine
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

None of these
Hammer blow
Tractive force
Swaying couple

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Theory of Machine
In a reciprocating steam engine, which of the following forms a kinematic link?

Cylinder and piston
Crankshaft and flywheel
Piston rod and connecting rod
Flywheel and engine frame

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