Question

Pick out the wrong statement.

a.

'Solvates' are chemical compounds formed by solute with their solvents. When water is the solvent, then it is called a 'hydrate'.

b.

In heat exchanger calculations (Δt)weighted is used in place of Δt, when it involves more than one sequence of heating or cooling i.e., desuperheating & condensation or condensation & sub-cooling.

c.

Heat transfer co-efficient during nucleate boiling is not influenced by the agitation imparted.

d.

In case of short tube vertical evaporators, area of central downtake is about 50 to 100% of the total tube cross-sectional area.

Answer: (c).Heat transfer co-efficient during nucleate boiling is not influenced by the agitation imparted.

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Pick out the wrong statement.

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Evaporation by thermocompression results in the

Q. Forced circulation evaporators are normally used for concentrating liquids having

Q. Steam economy in case of a triple effect evaporator will be

Q. In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be

Q. Multiple effect evaporation accounts for

Q. In case of a supercooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is

Q. Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second.

Q. In Biot number, the characteristic length used is the ratio of the __________ of the solid.

Q. Which of the following is the most widely used heat insulating material for pipelines carrying steam ?

Q. Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re^0.8 . Prⁿ, is not valid, if the value of

Q. Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling ?

Q. In case of a multipass shell and tube heat exchanger, the temperature drop in the fluid

Q. Reason for operating an evaporator in multiple effect is to secure

Q. In a cooling tower, water becomes cool by

Q. In Fourier's law, the proportionality constant is called the

Q. The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation.

Q. Pick out the wrong statement.

Q. 'Duhring's plot' is of use in

Q. Which has the lowest Prandtl number ?

Q. Pick out the wrong statement.

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!