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Theory of Machine

Theory of Machine
The moment on the pulley which produces rotation is called

Momentum
Moment of momentum
Torque
Inertia

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Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.4985/ √δS
0.571/ √δS
0.5615/ √δS
0.6253/ √δS

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Theory of Machine
A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

529.2 N-s/m
52.92 N-s/m
1.4 N-s/m
18.52 N-s/m

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Theory of Machine
In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ω/ωn is

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

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Theory of Machine
Whitworth quick return mechanism is obtained by inversion of

Five link mechanism
Slider crank mechanism
Roller cam mechanism
Kinematic chain

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Theory of Machine
Which of the below are inversions of slider crank mechanism?
1. Oscillating cylinder engine mechanism
2. Toggle mechanism
3. Radial cylinder engine mechanism
4. Quick return mechanism

2, 3 and 4
1, 2 and 4
1, 2 and 3
1, 3 and 4

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