Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be

Over-damped
Without vibrations
Under damped
Critically damped

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
Open belt drive is recommended
Crossed belt drive is recommended
Both open belt drive and crossed belt drive is recommended

ANSWER DOWNLOAD EXAMIANS APP