Search
.Management Sciences
A. Thermal boundary layer lies inside the concentration boundary layer
B. Concentration boundary layer lies inside the thermal boundary layer
C. Thermal & concentration boundary layers are of equal thickness
D. Hydrodynamic (i.e., momentum) boundary layer is thicker than the other two
Related Mcqs:
- “The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium”. This is ______________ law?
- A. Kirchoff’s B. Planck’s C. Wien’s displacement D. Stefan-Boltzmann...
- Tube expansion allowances exist in _____________ heat exchanger?
- A. Multipass fixed tube sheet B. U-tube C. Single pass fixed tube sheet D. None of these...
- For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it________________?
- A. Occupies smaller space B. Is more economical C. Is easy to operate and maintain D. All A., B. and C....
- Finned tube heat exchangers__________________?
- A. Give larger area per tube B. Use metal fins of low thermal conductivity C. Facilitate very large temperature drop through tube wall D. Are used for smaller heat load...
- The units of resistance to heat transfer is _____________________?
- A. J.m-2.K-1 B. J.m-1.K-1 C. W.m-2.K-1 D. W-1m2K...
Recent Comments