Mass Transfer-Data Intensity 4 | Multiple Questions and Answers

6.	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

7.	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

8.	Molecular sieves are regenerated by heating to ____ °C?

	A.	< 150
	B.	200-330
	C.	> 500
	D.	> 1000

9.	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