Theory of Machine The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft) ω (r₁ + r₂) cosθ cosec2θ ω (r₁ + r₂) sinθ sec2θ ω (r₁ r₂) cosθ ω (r₁ r₂) sinθ ω (r₁ + r₂) cosθ cosec2θ ω (r₁ + r₂) sinθ sec2θ ω (r₁ r₂) cosθ ω (r₁ r₂) sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The brake commonly used in railway trains is Shoe brake Band and block brake Band brake Internal expanding brake Shoe brake Band and block brake Band brake Internal expanding brake ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r cosθ m.ω².r (sin 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relative velocity of B with respect to A in a rigid link AB is Along AB At 45° to AB Parallel to AB Perpendicular to AB Along AB At 45° to AB Parallel to AB Perpendicular to AB ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, the amplitude of vibration Decreases linearly with time Decreases exponentially with time Increases exponentially with time Increases linearly with time Decreases linearly with time Decreases exponentially with time Increases exponentially with time Increases linearly with time ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The maximum fluctuation of speed is the Sum of maximum and minimum speeds Variations of speed above and below the mean resisting torque line Difference of the maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed Sum of maximum and minimum speeds Variations of speed above and below the mean resisting torque line Difference of the maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed ANSWER DOWNLOAD EXAMIANS APP
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