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Theory of Machine

Theory of Machine
Which of the following is an open pair?

Cam and follower
Journal bearing
Lead screw and nut
Ball and socket joint

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Theory of Machine
The example of spherical pair is

Lead screw of a lathe
Ball and socket joint
Bolt and nut
Ball bearing and roller bearing

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Theory of Machine
In a kinematic chain, a quaternary joint is equivalent to

Four binary joints
Three binary joints
One binary joint
Two binary joints

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Theory of Machine
The example of successfully constrained motion is a

Piston reciprocating inside an engine cylinder
Motion of the shaft between a footstep bearing
All of these
Motion of an I.C. engine valve

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Theory of Machine
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

600°K
625°K
650°K
700°K

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Theory of Machine
Transmission of power from the engine to the rear axle of an automobile is by means of

Hooke's joint
Crown gear
Compound gears
Worm and wheel method

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