A. Mass transfer between a gas and a liquid
B. Absorption with chemical reaction
C. Heat transfer in turbulent flow
D. Heat transfer in laminar flow
Related Mcqs:
- Graetz number is given by__________________?
A. mCp/kL
B. kL/mCp
C. mCp/kμ
D. kμ/mCp - 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 - In case of a vertical tube evaporator, with increase in the liquor level, the___________________?
A. Capacity of the evaporator is decreased
B. Capacity of the evaporator is increased
C. True temperature drop increases
D. Both B. and C. - Crystal size in a continuous crystalliser depends upon the___________________?
A. Rate of heat transfer
B. Degree of turbulence
C. Degree of super-saturation
D. All A., B. and C - 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 - Which of the following is directly concerned with the heat transfer ?
A. Strouhal number
B. Sherwood number
C. Euler number
D. Grashoff number - Leidenfrost point is a term concerned with the____________________?
A. Condensation of the saturated vapor on a cold surface
B. Concentration of a corrosive solution by evaporation
C. Heat transfer between two highly viscous liquids
D. Boiling of a liquid on a hot surface - Which of the following is not concerned with the heat transfer ?
A. Brinkman number
B. Stanton number
C. Schmidt number
D. Peclet number - Which of the following is concerned with both heat and mass transfer ?
A. Lewis relationship
B. Nusselt number
C. Kutateladze number
D. Froude number
