Theory of Machine Whirling speed of the shaft is the speed at which Shaft tends to vibrate in longitudinal direction Torsional vibrations occur Shaft tends to vibrate vigorously in transverse direction Combination of transverse and longitudinal vibration occurs Shaft tends to vibrate in longitudinal direction Torsional vibrations occur Shaft tends to vibrate vigorously in transverse direction Combination of transverse and longitudinal vibration occurs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Cross head and guides form a Sliding pair Lower pair Higher pair Turning pair Sliding pair Lower pair Higher pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of lower pair is Straight line motion mechanisms Automobile steering gear All of these Shaft revolving in a bearing Straight line motion mechanisms Automobile steering gear All of these Shaft revolving in a bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ] ω². (r₁ r₂). (1 - cos² θ) ω². (r₁ - r₂). (1 - sin² θ) ω². (r₁ + r₂). (1 + cos² θ) ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ] ω². (r₁ r₂). (1 - cos² θ) ω². (r₁ - r₂). (1 - sin² θ) ω². (r₁ + r₂). (1 + cos² θ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing) ½μWR ¾μWR μwr ²/₃ μWR ½μWR ¾μWR μwr ²/₃ μWR ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of oscillation at compared to earth will be 2.44 times more 2.44 times less 6 times less 6 times more 2.44 times more 2.44 times less 6 times less 6 times more ANSWER DOWNLOAD EXAMIANS APP
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