Mechanical Engineering :: Theory of Machine
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The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because
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The two links are said to have a pure rolling contact, when their instantaneous centre __________ on their point of contact.
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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)
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The instantaneous centre of a rigid thin disc rolling on a plane rigid surface is located at
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The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.
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A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if
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When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in __________ directions.
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The ratio of velocities of the shafts connected by Hooke's joint is given by (where N and N1 = Speed of driving and driven shafts (in r.p.m.) respectively, θ = Angle through which the arms of the cross turn, and α = Angle of inclination between the two shafts)
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