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Theory of Machine

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

Bevel gear
Knuckle joint
Hooke's joint
Universal joint

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Theory of Machine
In S.H.M., the velocity vector w.r.t. displacement vector

Lags by 90°
Leads by 180°
Leads by 90°
Are in phase

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Theory of Machine
The driving and driven shafts connected by a Hooke's joint will have equal speeds, if

sinθ = ± tanα
cosθ = sinα
cotθ = cosα
tanθ = ± cosα

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Theory of Machine
In a steam engine, the distance by which the outer edge of the D-slide valve overlaps the steam port is called

Lead
Steam lap
Exhaust lap
None of these

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Theory of Machine
Governor is used in automobile to

Limit the vehicle speed
Maximize the fuel economy
Maintain constant engine speed
Decrease the variation of speed

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Theory of Machine
Idler pulley is used

All of the listed here
For applying tension
For increasing velocity ratio
For changing the direction of motion of the belt

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