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Theory of Machine

Theory of Machine
The number of links in pantograph mechanism is equal to

3
2
5
4

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Theory of Machine
The Scott-Russell mechanism consists of

Turning and rotary pairs
Sliding and turning pairs
Sliding and rotary pairs
Sliding pairs only

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Theory of Machine
One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

1/2π. √(δ/g)
2π. √(g/δ)
1/2π. √(g/δ)
2π. √(δ/g)

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Theory of Machine
The secondary unbalanced force is __________ the primary unbalanced force.

1/n times
One-half
Two-third
n times

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Theory of Machine
The method of direct and reverse cranks is used in engines for

The control of speed fluctuations
Kinematic analysis
Vibration analysis
Balancing of forces and couples

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Theory of Machine
The angle of inclination of the plane, at which the body begins to move down the plane is called

None of these
Angle of projection
Angle of friction
Angle of repose

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