70) In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be
Answer is:
double
Related Hydraulics and fluid mechanics MCQ with Answers
Answer is:
lower critical velocity
Explanation:
The velocity at which the flow changes from the laminar flow to the turbulent flow, is called critical velocity. It is of two types, i.e., lower critical velocity and higher critical velocity.
The velocity at which the laminar flow stops, is known as lower critical velocity, while the velocity at which the turbulent flow starts, is known as higher critical velocity.
