For laminar flow through a closed conduit____________________?
A. Vmax = 2Vav
B. Vmax = Vav
C. Vmax = 1.5Vav
D. Vmax = 0.5Vav
Fluid Mechanics for Chemical
One dimensional fluid flow implies the ________________________?
One dimensional fluid flow implies the ________________________?
A. Flow in straight lines only
B. Uniform flow
C. Steady uniform flow
D. Flow in which transverse components are zero
Turbine impeller____________________?
Turbine impeller____________________?
A. Produces only radial current
B. Produces only tangential current
C. Is effective over wide range of viscosities
D. Does not produce tangential current
What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition ?
What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition ?
A. 0.5
B. 0.67
C. 1
D. 2
The friction factor is___________________?
The friction factor is___________________?
A. Always inversely proportional to the Reynolds number
B. Not dimensionless
C. Not dependent on the roughness of the pipe
D. None of these
Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flowmeters, because their ______________ is very low/small?
Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flowmeters, because their ______________ is very low/small?
A. Thermal conductivity
B. Electrical conductivity
C. Specific gravity
D. Electrical resistivity
High specific speed of a pump implies that, it is a/an _____________ pump?
High specific speed of a pump implies that, it is a/an _____________ pump?
A. Centrifugal
B. Mixed flow
C. Axial flow
D. None of these
The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is__________________?
The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is__________________?
A. < 1
B. 1
C. > 1
D. 2
Sewage sludge is an example of the ______________ fluid?
Sewage sludge is an example of the ______________ fluid?
A. Bingham plastic
B. Newtonian
C. Pseudo plastic
D. Dilatent
Viscosity of water is about _____________ times that of air at room temperature?
Viscosity of water is about _____________ times that of air at room temperature?
A. 15
B. 55
C. 155
D. 1050