A. Rate of heat transfer
B. Degree of turbulence
C. Degree of super-saturation
D. All A., B. and C
Related Mcqs:
- jH factor for heat transfer depends upon the ____________ number?
A. Biot
B. Nusselt
C. Reynolds
D. Prandtl - Economy of a multiple effect evaporator depends upon the _____________________?
A. Heat balance consideration
B. Rate of heat transfer
C. Both A. and B.
D. Neither A. nor B. - The ratio of total radiating power to the absorptivity of the body depends upon the _____________ as per Kirchoff‟s law?
A. Wavelength of radiation
B. Nature of the body
C. Temperature of the body
D. None of these - The rate of heat transfer from a vertical plate by natural convection depends upon the temperature differences (ΔT) between wall and outside bulk. The proportionality is given as______________?
A. (ΔT)1/4
B. (ΔT)1/2
C. (ΔT)5/4
D. (ΔT)3/4 - Thermal conductivity of a conducting solid material depends upon its_______________?
A. Temperature
B. Porosity
C. Both A. & B.
D. Neither A. nor B. - The driving potential for the crystal growth during crystallisation is the _______________ of the solution?
A. Concentration
B. Viscosity
C. Super-saturation
D. Density - During crystallisation, formation of crystal can occur in ______________ solution only?
A. Saturated
B. Supersaturated
C. Under-saturated
D. All A., B. and C. - Use of transverse baffles in a shell and tube heat exchanger is done to increase the___________________?
A. Rate of heat transfer
B. Flow velocity
C. Turbulence of shell side fluid
D. All A., B. and C. - The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the___________________?
A. Heating volume
B. Heat transfer area
C. Nusselt number
D. None of these - At Pr > 1, conduction in an ordinary fluid flowing through a heated pipe is limited to the___________________?
A. Buffer zone
B. Turbulent core
C. Both A. and B.
D. Viscous sub-layer
