Mass Transfer-Data Intensity 1 Multiple Questions and Answers.




36.With increase in the mass velocity of the gas, the rate of drying during the constant rate period ______________, if the conduction and radiation through the solid are negligible ?
A. Increases
B. Decreases
C. Remain same
D. Increases linearly

37.Which of the following is not fixed by the process requirements, in the design of absorbers ?
A. Flow rate of the entering gas
B. Composition of the entering liquid
C. Terminal concentrations of gas stream
D. None of these

38.Molecular sieves are regenerated by heating to ____ °C?
A. < 150
B. 200-330
C. > 500
D. > 1000

39.Co-current absorbers are usually used when the gas to be dissolved in the liquid is _____?
A. Sparingly soluble
B. Highly soluble
C. A pure substance
D. A mixture

40.In triangular co-ordinates, the ternary composition point falls ____ of the triangle?
A. In the corners
B. Inside
C. On the sides
D. None of these

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