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Theory of Machine

Theory of Machine
The number of centers in a crank driven slider crank mechanism is

6
2
4

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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)
1/2π. √(g/δ)
2π. √(δ/g)
2π. √(g/δ)

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Theory of Machine
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to

Ensure proper alignment
Reduce slip
Ensure uniform loading
Reduce vibration

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Theory of Machine
A spring controlled governor is said to be stable if the controlling force line when produced intersects the Y-axis

Below the origin
At the origin
Above the origin
Any one of these

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Theory of Machine
To connect two parallel and coplanar shafts the following type of gearing is used

Bevel gear
Spur gear
None of the listed here
Spiral gear

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Theory of Machine
Which of the following would constitute a link?

Piston, piston rod and cross head
Piston, crank pin and crank shaft
Piston and piston rod
Piston rod and cross head

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