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 Radius of journal Clearance between journal and bearing Magnitude of the forces on journal Angular velocity of journal Radius of journal Clearance between journal and bearing Magnitude of the forces on journal Angular velocity of journal ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then The drive is recommended depending upon the torque transmitted Crossed belt drive is recommended Open belt drive is recommended Both open belt drive and crossed belt drive is recommended The drive is recommended depending upon the torque transmitted Crossed belt drive is recommended Open belt drive is recommended Both open belt drive and crossed belt drive is recommended ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone) μ W R cosecα (1/2) μ W R cosecα (2/3) μ W R cosecα (3/4) μ W R cosecα μ W R cosecα (1/2) μ W R cosecα (2/3) μ W R cosecα (3/4) μ W R cosecα ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The contact ratio is given by (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the arc of contact)/(Circular pitch) (Length of the path of approach)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the arc of contact)/(Circular pitch) (Length of the path of approach)/(Circular pitch) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of higher pair is Gears, cams Belt, rope and chain drives Ball and roller bearings All of these Gears, cams Belt, rope and chain drives Ball and roller bearings All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The swaying couple is due to the Secondary unbalanced force Partial balancing Primary unbalanced force Two cylinders of locomotive Secondary unbalanced force Partial balancing Primary unbalanced force Two cylinders of locomotive ANSWER DOWNLOAD EXAMIANS APP
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