The frictional resistance is proportional to the velocity in laminar flow

Related MCQs

• Ratio of actual velocity of flow and critical velocity of flow is known as
• The fR depends on the nature of the surface of contact in laminar flow.
• In Reynolds experiment, beyond the upper critical velocity, the flow will be fully disturbed and such a flow is known as
• A real fluid, in which the shear stress is directly proportional to the rate of shear strain (or velocity gradient), is known as ___________.
• A real fluid, in which the shear stress is not proportional to the rate of shear strain (or velocity gradient), is known as __________.
• A fluid in which shear stress is more than the yield value and shear stress is proportional to the rate of shear strain (or velocity gradient) is known as ___________.
• The diameters of a pipe at the sections 1 and 2 are 10 cm and15 cm respectively. The velocity of water flowing through the pipe at section 1 is 5 m/s. Determine the velocity at section 2.
• The velocity of liquid particles at the centre of pipe is less than the velocity of particles near the inner surface of pipe.
• Type of flow in which the fluid characteristics like velocity, pressure, density etc. at a point do not change with time is known as
• Type of flow in which the velocity at any given time changes with respect to space is known as