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Theory of Machine

Theory of Machine
A cam mechanism imparts following motion

All of these
Reciprocating
Oscillating
Rotating

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

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

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Theory of Machine
The mechanism in which two are turning pairs and two are sliding pairs, is called a

Double slider crank chain
Elliptical trammel
All of these
Scotch yoke mechanism

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Theory of Machine
The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

180° and 270°
270° and 360°
45° and 225°
90° and 180°

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Theory of Machine
Elements of pairs held together mechanically is known as

Mechanical pair
Closed pair
Rolling pair
Open pair

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Theory of Machine
The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as

Bevel gearing
Spiral gearing
Spur gearing
Helical gearing

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