A. 0
B. 1
C. > 1
D. Between 0 and 1
A. Rate of heat transfer
B. Degree of turbulence
C. Degree of super-saturation
D. All A., B. and C
Crystal size in a continuous crystalliser depends upon the___________________? Read More »
Chemical Heat Transfer A. Film
B. Sub-cooled
C. Saturated nucleate
D. None of these
Boiling of milk in an open vessel is an example of ______________ boiling? Read More »
Chemical Heat Transfer A. Single effect evaporator
B. Single effect evaporator followed by a crystalliser
C. Multiple effect evaporator
D. Multiple effect evaporators followed by a crystalliser
Black liquor generated during paper manufacture is concentrated in a___________________? Read More »
Chemical Heat Transfer A. CP. μ/k
B. hD/k
C. h. CP/μ
D. CP. μ/h
What is Nusselt number ? Read More »
Chemical Heat Transfer A. Geometric mean temperature difference
B. Arithmetic mean temperature difference
C. Logarithmic mean temperature difference
D. The difference of average bulk temperatures of hot and cold fluids
In the equation Q = UAΔt; Δt is_________________________? Read More »
Chemical Heat Transfer A. 32
B. 37
C. 45
D. 50
A. mCp/kL
B. kL/mCp
C. mCp/kμ
D. kμ/mCp
Graetz number is given by__________________? Read More »
Chemical Heat Transfer A. Nst α f
B. Nst α NRe
C. NNu α f
D. NRe α f
Reynold’s analogy states that_________________? Read More »
Chemical Heat Transfer A. Nitrogen
B. Steel
C. Carbon black
D. Tar
Which of the following has the minimum thermal conductivity ? Read More »
Chemical Heat Transfer