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Theory of Machine

Theory of Machine
The size of cam depends upon

Prime circle
Base circle
Pitch curve
Pitch circle

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Theory of Machine
The Bifilar suspension method is used to determine

Moment of inertia
Centripetal acceleration
Natural frequency of vibration
Position of balancing weights

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Theory of Machine
Which one of the following can completely balance several masses revolving in different planes on a shaft?

A single mass in different planes
A single mass in one of the planes of the revolving masses
Two masses in any two planes
Two equal masses in any two planes

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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 × CO
ω² × NO
ω² × CN
ω² × QN

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Theory of Machine
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by

W CE / CS
2 W CE / CS
W CE / 2CS
W CS / 2CE

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Theory of Machine
The tendency of a body to resist change from rest or motion is known as

Mass
Friction
Resisting force
Inertia

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MORE MCQ ON Theory of Machine

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