Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing) r sinφ (r/2) cosφ r cosφ r tanφ r sinφ (r/2) cosφ r cosφ r tanφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the axes of the first and last wheels are coaxial, then the train is known as Epicyclic gear train Simple train of wheels Compound train of wheels Reverted gear train Epicyclic gear train Simple train of wheels Compound train of wheels Reverted gear train 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) ¾μWR ½μWR μwr ²/₃ μWR ¾μWR ½μWR μwr ²/₃ μWR ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mechanism is an assemblage of Two links Three links All of these Four or more than four links Two links Three links All of these Four or more than four links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface) (2/3) μ W R (1/2) μ W R (3/4) μ W R μ W R (2/3) μ W R (1/2) μ W R (3/4) μ W R μ W R ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In railway axle boxes, the bearing used is Deep groove ball bearing Double row spherical roller bearing Double row self aligning ball bearing Cylindrical roller bearing Deep groove ball bearing Double row spherical roller bearing Double row self aligning ball bearing Cylindrical roller bearing ANSWER DOWNLOAD EXAMIANS APP
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