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Theory of Machine

Theory of Machine
A mechanism is an assemblage of

Three links
All of these
Two links
Four or more than four links

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

Spur gear
None of the listed here
Spiral gear
Bevel gear

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Theory of Machine
A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

12,000 r.p.m.
5,367 r.p.m.
6,000 r.p.m.
9,360 r.p.m.

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Theory of Machine
The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as

Incompletely constrained motion
None of these
Successfully constrained motion
Completely constrained motion

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Theory of Machine
Transmission of power from the engine to the rear axle of an automobile is by means of

Worm and wheel method
Compound gears
Hooke's joint
Crown gear

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Theory of Machine
In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)

(S₁ + S₂) / 2h
(S₁ - S₂) / h
(S₁ - S₂) / 2h
(S₁ + S₂) / h

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