Theory of Machine The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed. Ratio Difference Sum Product Ratio Difference Sum Product ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A pantograph is a mechanism with Turning pairs Rolling pairs Higher pairs Lower pairs Turning pairs Rolling pairs Higher pairs Lower pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary 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 (cos 2θ/n) m.ω².r sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Bifilar suspension method is used to find the Frequency of vibration of the body Periodic time of the body Angular acceleration of the body Moment of inertia of the body Frequency of vibration of the body Periodic time of the body Angular acceleration of the body Moment of inertia of the body ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a spring controlled governor? Wilson-Hartnell governor Hartung governor Hartnell governor All of these Wilson-Hartnell governor Hartung governor Hartnell governor All of these ANSWER DOWNLOAD EXAMIANS APP
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