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Theory of Machine

Theory of Machine
A point on a link connecting double slider crank chain traces a

Circle
Ellipse
Parabola
Hyperbola

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Theory of Machine
For fluctuating loads, well suited bearing is

Thrust bearing
Roller bearing
Needle roller bearing
Ball bearing

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Theory of Machine
When a ship travels in a sea, which of the effect is more dangerous

Rolling
Pitching
All of these
Steering

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Theory of Machine
Creep in belt drive is due to

Uneven extensions and contractions due to varying tension
Material of the pulley
Material of the belt
Larger size of the driver pulley

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Theory of Machine
In a simple train of wheels, the velocity ratio __________ the intermediate wheels.

None of these
Is independent of
Depends upon
Either A or B

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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 × CN
ω² × CO
ω² × QN

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