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THEORY OF MACHINE

Theory of Machine
Cylindrical cams can be classified as

Reciprocating
Tangent
Circular
None of these

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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.

Equal
Real
Complex conjugate
None of these

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

(2/3) μ W R
(1/2) μ W R
(3/4) μ W R
μ W R

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Theory of Machine
When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as

Torsional pendulum
Second's pendulum
Compound pendulum
Simple pendulum

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Theory of Machine
The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel, but intersect is

Chain coupling
Oldham's coupling
Flexible coupling
Universal coupling

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