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Theory of Machine

Theory of Machine
A cam mechanism imparts following motion

All of these
Oscillating
Reciprocating
Rotating

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

All of these
Pitching
Steering
Rolling

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Theory of Machine
The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)

(R - r₁) (1 - sinθ)
(R - r₁) (1 - cosθ)
R (1 - sinθ)
R (1 - cosθ)

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Theory of Machine
The Klein's diagram is used when

Crank has uniform angular velocity
Crank has nonuniform angular velocity
Crank has uniform angular acceleration
Crank has nonuniform angular acceleration

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Theory of Machine
Governor is used in automobile to

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

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Theory of Machine
The working depth of a gear is the radial distance from the

Pitch circle to the top of a tooth
Pitch circle to the bottom of a tooth
Addendum circle to the clearance circle
Top of a tooth to the bottom of a tooth

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