Theory of Machine The primary unbalanced force is maximum _________ in one revolution of the crank. Twice Sixteen times Four times Eight times Twice Sixteen times Four times Eight times ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the 0.5 1 2 1.5 0.5 1 2 1.5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in Transverse vibrations Torsional vibrations Longitudinal vibrations All of these Transverse vibrations Torsional vibrations Longitudinal vibrations All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The mechanism in which two are turning pairs and two are sliding pairs, is called a Elliptical trammel Double slider crank chain All of these Scotch yoke mechanism Elliptical trammel Double slider crank chain All of these Scotch yoke mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous centers which vary with the configuration of mechanism are called Neither fixed nor permanent instantaneous centers Fixed instantaneous centers None of these Permanent instantaneous centers Neither fixed nor permanent instantaneous centers Fixed instantaneous centers None of these Permanent instantaneous centers 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 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) m.ω².r sinθ m.ω².r (cos 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
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