A Rotameter works on the principle of _______________ pressure drop?
A. Constant
B. Variable
C. Both A. & B.
D. Neither A. nor B.
Fluid Mechanics for Chemical
The energy equation, E + (p/ρ) + (V2/2g) + gZ = constant (E = internal energy/mass), is applicable to___________________?
The energy equation, E + (p/ρ) + (V2/2g) + gZ = constant (E = internal energy/mass), is applicable to___________________?
A. Perfect gases only
B. Isothermal flow of gases
C. Adiabatic unsteady flow of gases
D. All compressible fluids
The hydrodynamic and thermal boundary layers will merge, when ____________________?
The hydrodynamic and thermal boundary layers will merge, when ____________________?
A. Prandtl number is one
B. Schmidt number tends to infinity
C. Nusselt number tends to infinity
D. Archimedes number is greater than 10000
The velocity profile exhibited by laminar flow of Newtonian fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an ______________ with the apex at the centre line of the pipe?
The velocity profile exhibited by laminar flow of Newtonian fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an ______________ with the apex at the centre line of the pipe?
A. Hyperbola
B. Parabola
C. Semi-circle
D. Semi-ellipse
A centrifugal pump is called a turbine pump, if it is having a_________________?
A centrifugal pump is called a turbine pump, if it is having a_________________?
A. Turbine type impeller
B. Vaned diffusion casing
C. Rotating vaned volute
D. None of these
In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure ______________ the vapor pressure of the liquid at the suction temperature?
In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure ______________ the vapor pressure of the liquid at the suction temperature?
A. Lower than
B. Higher than
C. Equal to
D. None of these
A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be _______________ cms?
A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be _______________ cms?
A. 17
B. 42
C. 84
D. 1.8
Power required for mixing Newtonian fluids is a function of the _________________?
Power required for mixing Newtonian fluids is a function of the _________________?
A. Speed of impeller, diameter of impeller & viscosity
B. Density & viscosity of fluid only
C. Density of fluid, viscosity of fluid & impeller dia only
D. None of these
Which of the following properties of a fluid is responsible for offering resistance to shear ?
Which of the following properties of a fluid is responsible for offering resistance to shear ?
A. Surface tension
B. Viscosity
C. Specific gravity
D. All A., B., and C.
Higher specific speed (200-500) of a centrifugal pump indicates that the pump is of ______________ flow type?
Higher specific speed (200-500) of a centrifugal pump indicates that the pump is of ______________ flow type?
A. Axial
B. Radial
C. Mixed
D. None of these