Theory of Machine A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the Clearance between journal and bearing Radius of journal Angular velocity of journal Magnitude of the forces on journal Clearance between journal and bearing Radius of journal Angular velocity of journal Magnitude of the forces on journal ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank) ω²r [cos θ + (cos 2θ/n)] ωr [cos θ + (cos 2θ/n)] ωr [sin θ + (sin 2θ/n)] ω²r [sin θ + (sin 2θ/n)] ω²r [cos θ + (cos 2θ/n)] ωr [cos θ + (cos 2θ/n)] ωr [sin θ + (sin 2θ/n)] ω²r [sin θ + (sin 2θ/n)] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft in revolution per second is __________ as that of natural frequency of transverse vibration. Same None of these Unpredictable Different Same None of these Unpredictable Different ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be Slightly more than 45 mm Slightly less than 45 mm 45 mm 95 mm Slightly more than 45 mm Slightly less than 45 mm 45 mm 95 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a locomotive, the resultant unbalanced force due to the two cylinders along the line of stroke, is known as Swaying couple Hammer blow None of these Tractive force Swaying couple Hammer blow None of these Tractive force ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be data are insufficient 90 RPM 80 RPM 100 RPM data are insufficient 90 RPM 80 RPM 100 RPM ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS