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Theory of Machine

Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS
2ECS²
EC S/2
2E²CS

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Theory of Machine
The following is the inversion of slider crank chain mechanism

Whitworth quick return mechanism
All of these
Hand pump
Oscillating cylinder engine

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Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

3
2
1
4

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Theory of Machine
The velocity of sliding of meshing gear teeth is(Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point)

(ω₁ + ω₂) y
(ω₁ × ω₂) y
(ω₁/ω₂) y
(ω₁ + ω₂)/y

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Theory of Machine
When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a

Higher pair
Self-closed pair
Force-closed pair
Lower pair

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Theory of Machine
The arrangement is called bevel gearing, when two __________ are connected by gears.

Non-intersecting and non-coplanar shafts
Parallel and coplanar shafts
Intersecting and coplanar shafts
Parallel and non-coplanar shafts

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