Dropwise condensation occurs on ______________ surfaces?
Correct answer: A. Contaminated cooling
- A. Contaminated cooling
- B. Smooth clean
- C. Clean and dirt free
- D. Polished
Explanation
Dropwise condensation is promoted by a contaminated or coated surface that does not allow the condensate to spread as a continuous film. A clean, polished surface generally favors filmwise condensation.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Heat Transfer Operations
645 free Heat Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Heat Transfer Operations questions
Value of Prandtl number for water ranges from_________________?
A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time ___________________?
Unsteady state heat conduction occurs, when_______________?
For a given ambient air temperature with increase in the thickness of insulation of a hot cylindrical pipe, the rate of heat loss from the surface would ?
The sum of reflectivity and absorptivity for an opaque body is equal to____________________?
Steam is routed through the tube in case of a ______________ evaporator?