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Theory of Machine

Theory of Machine
In automobiles the power is transmitted from gear box to differential through

Bevel gear
Universal joint
Knuckle joint
Hooke's joint

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Theory of Machine
The Hooke's joint consists of:

Four forks
One fork
Two forks
Three forks

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Theory of Machine
Which of the following is a lower pair?

Cam and follower
Ball and socket i
Both (A) and (B) above
Piston and cylinder

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Theory of Machine
When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the piston will be

Zero
Maximum
Minimum
None of these

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Theory of Machine
The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical)

cosα = c/b
cotα = c/2b
sinα = b/c
tanα = c/2b

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Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.5615/ √δS
0.4985/ √δS
0.571/ √δS
0.6253/ √δS

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