Q. The temperature of water cooled in cooling tower is always __________ temperature of entering air.

View solution

Q. Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C?

View solution

Q. Mass transfer co-efficient is directly proportional to Dᴀʙ according to the __________ theory.

View solution

Q. Ammonia present in the coke oven gas is removed by washing with

View solution

Q. With increase in temperature, the leaching rate increases due to

View solution

Q. Which of the following processes is not an example of adsorption applied to gaseous separations ?

View solution

Q. The critical moisture content in case of drying indicates the __________ rate period.

View solution

Q. Pick out the wrong statement

View solution

Q. Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is

View solution

Q. 'ADDUCTS' and 'CLATHRATES' are used in case of

View solution

Q. Adsorption is an unit operation which generally involves __________ systems.

View solution

Q. In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

View solution

Q. Separation of the isotopes of helium for scientific investigations is done by

View solution

Q. Extraction of coffee from its seed is done by

View solution

Q. In azeotropic mixture, the equilibrium vapour composition is

View solution

Q. With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux

View solution

Q. Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of

View solution

Q. According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

View solution

Q. Which of the following assumes constant molal vaporisation and overflow ?

View solution

Q. Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

View solution