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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
2E²CS
EC S/2
2ECS²

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Theory of Machine
Klein's construction can be used to determine acceleration of various parts when the crank is at

Inner dead centre
All of the listed here
Outer dead centre
Right angles to the link of the stroke

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Theory of Machine
The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as

Sliding pair
Turning pair
Spherical pair
Rolling pair

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Theory of Machine
The Klein's diagram is used when

Crank has nonuniform angular acceleration
Crank has uniform angular acceleration
Crank has nonuniform angular velocity
Crank has uniform angular velocity

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Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

ω² × NO
ω² × QN
ω² × CO
ω² × CN

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Theory of Machine
In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is

Greater than sum of other two
Equal to sum of other two
There is no such relationship
Less than sum of other two

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