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Theory of Machine

Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

At
Above
Below
None of these

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Theory of Machine
The frequency of oscillation at compared to earth will be

6 times more
2.44 times less
6 times less
2.44 times more

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Theory of Machine
Which of the following mechanism is an approximate straight line motion mechanism?

Grasshopper mechanism
Robert's mechanism
All of these
Watt's mechanism

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Theory of Machine
The Hooke's joint consists of:

Two forks
Four forks
One fork
Three forks

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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

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

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Theory of Machine
The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

(1/2π). √(q/I)
1/2π
2π qI
2π. √(q/I)

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