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Theory of Machine

Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2E²CS
2ECS
EC S/2
2ECS²

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Theory of Machine
At the nodal point in a shaft, the amplitude for torsional vibration will be

Infinity
Maximum
Zero
Minimum

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Theory of Machine
The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, and θ = Angle of inclination of crank to the line of stroke)

m.ω².r (cosθ - sinθ)
m.ω².r sinθ
m.ω².r cosθ
(1 - c).m.ω².r (cosθ - sinθ)

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Theory of Machine
The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

ω₁.ω₂.r
(ω₁ + ω₂) r
(ω₁ - ω₂) 2r
(ω₁ - ω₂) r

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

270° and 360°
0° and 90°
90° and 180°
135° and 315°

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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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