Theory of Machine In railway axle boxes, the bearing used is Deep groove ball bearing Cylindrical roller bearing Double row spherical roller bearing Double row self aligning ball bearing Deep groove ball bearing Cylindrical roller bearing Double row spherical roller bearing Double row self aligning ball bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as Logarithmic decrement Damping coefficient Damping factor Magnification factor Logarithmic decrement Damping coefficient Damping factor Magnification factor 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) (3/4) μ W R cosecα μ W R cosecα (2/3) μ W R cosecα (1/2) μ W R cosecα (3/4) μ W R cosecα μ W R cosecα (2/3) μ W R cosecα (1/2) μ W R cosecα ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following governor is used to drive a gramophone? Watt governor Pickering governor Hartnell governor Porter governor Watt governor Pickering governor Hartnell governor Porter governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted by a disc or plate clutch is same as that of Flat pivot bearing Truncated conical pivot bearing Conical pivot bearing Flat collar bearing Flat pivot bearing Truncated conical pivot bearing Conical pivot bearing Flat collar bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Remain same as before Become equal to 2R Become equal to R/2 Become equal to R/4 Remain same as before Become equal to 2R Become equal to R/2 Become equal to R/4 ANSWER DOWNLOAD EXAMIANS APP
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