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Mass Transfer Quiz 9

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Mass Transfer Quiz 9

1 / 50

Separation of two or more components of a liquid solution cannot be achieved by_____?

2 / 50

Pressure drop through plate tower as compared to that through packed tower, for the same duty will be_____?

3 / 50

Reverse osmosis is also called__________?

4 / 50

Refractory bricks are usually dried in a _________ dryer?

5 / 50

Prandtl number for water at 20?C is about _________?

6 / 50

Ponchon-Savarit method analyses the fractional equipment based on_____?

7 / 50

Small dia distillation column can be a ___________?

8 / 50

Radioactive nuclear waste is treated in______?

9 / 50

Rayleigh?s equation applies to _________ distillation?

10 / 50

Separation of two volatile liquids by distillation makes use of their__________?

11 / 50

Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their______?

12 / 50

Rayleigh equation applies to __________ distillation ?

13 / 50

Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent ________?

14 / 50

Rotary dryers cannot handle ________ materials ?

15 / 50

Raoult?s law applies to the_____?

16 / 50

Reboiler is considered as one theoretical plate, because_______?

17 / 50

Rayleigh?s equation applies to __________ distillation?

18 / 50

Relative humidity is the ratio of the________?

19 / 50

Raoult?s law is applicable to the_______?

20 / 50

Powdery materials can be guarded against caking tendency on storage by__________?

21 / 50

Rate of leaching increases with increasing________?

22 / 50

Schmidt number and Lewis number for pure air at atmospheric conditions are respectively___________?

23 / 50

Sand is dried in foundries in a ________drier?

24 / 50

Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the _________ of a fibre ?

25 / 50

Relative volatility varies with the concentration of component for an ideal solution. The relative volatility of a binary mixture may be defined as the ratio of vapor pressure of component ?A? to that of component ?B?, when__________?

26 / 50

Plate efficiency_________?

27 / 50

Plate efficiency in a distillation column is reduced due to the _______ of liquid?

28 / 50

Schmidt number is given by _____?

29 / 50

Raschig ring made of porcelain cannot be used for treating concentrated_____?

30 / 50

Solvent used in extractive distillation_____?

31 / 50

Priming in a distillation column__________?

32 / 50

Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the______?

33 / 50

Pick out the wrong statement?

34 / 50

Removal of _______ exemplifies an adsorption unit operation?

35 / 50

Pore size of the molecular sieve 5A is ______ mm ?

36 / 50

Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation ?

37 / 50

Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when______?

38 / 50

Powdery materials can be guarded against caking tendency on storage by_____?

39 / 50

Raoult?s law does not apply, when the_____?

40 / 50

Rose oil is extracted from rose leaves using _____ distillation?

41 / 50

Separation of the isotopes of helium for scientific investigations is done by_______?

42 / 50

Selectivity of the solvent used in solvent extraction should be)__________?

43 / 50

Solvent used in extractive distillation___________?

44 / 50

Positive deviation from Raoult?s law means a mixture whose total pressure is_____?

45 / 50

Sodium bicarbonate is produced during soda ash manufacture using a ________ tower?

46 / 50

Plate efficiency in a distillation column is reduced due to the ________ of liquid?

47 / 50

Relative volatility does not change appreciably with the change in_______?

48 / 50

Separation of two volatile liquids by distillation makes use of their_____?

49 / 50

Pick out the wrong statement?

50 / 50

Smoke is an example of _____?

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