A. Concentration
B. Viscosity
C. Super-saturation
D. Density
Correct Answer: Super-saturation ✔
Last Updated: March 03, 2019
Related MCQs
- Heat flux, as defined in heat flow is analogous to __________ in electricity flow?
- Conductance is given by (where, x = thickness, A = heat flow area, K = thermal conductivity.)?
- LMTD can’t be used as such without a correction factor for the__________?
- Heat sensitive materials can be concentrated in an evaporator employing__________?
- For what value of Prandtl number, St = f/2 ?
- In a heat exchanger, the rate of heat transfer from the hot fluid to the cold fluid__________?
- Grashoff number is given by__________?
- If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law?
- Which of the following is the most widely used heat insulating material for pipelines carrying steam ?
- Evaporator tubes are generally__________?
- In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid?
- Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer?
- Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the__________?
- Reason for operating an evaporator in multiple effects is to secure __________?
- All analogy equations connecting friction factor and heat transfer co-efficient apply only to __________?
- Fouling factor for a heat exchanger is given by (where, U1 = heat transfer co-efficient of dirty surface U2 = heat transfer co-efficient of clean surface) ?
- For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is__________?
- A graph between __________ is called Wilson plot?
- Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer coefficient is „3k/l’. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade ?
- For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it__________?