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Theory of Machine

Theory of Machine
Pulley in a belt drive acts as

Sliding pair
Rolling pair
Cylindrical pair
Turning pair

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Theory of Machine
The length of a simple pendulum which gives the same frequency as the compound pendulum, is

kG + l₁
kG² + l₁
(kG² + l₁²)/ l₁
(kG + l₁²)/ l₁

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Theory of Machine
The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base)

cosφ - sinα = c/b
tanφ + cotα = b/c
cotφ - cotα = c/b
sinφ + sinα = b/c

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Theory of Machine
Which gear train is used for higher velocity ratios in a small space?

Reverted gear train
Epicyclic gear train
Simple gear train
Compound gear train

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Theory of Machine
The Klein's diagram is used when

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

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Theory of Machine
One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

1/2π. √(δ/g)
2π. √(g/δ)
2π. √(δ/g)
1/2π. √(g/δ)

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