Chemical Engineering MCQs

Page No. 661

Hypersorption refers to a ________________ process?


aFixed bed absorption


bMoving bed absorption


cFixed bed adsorption


dMoving bed adsorption


View Answer Moving bed adsorption

Moisture contained by a substance in excess of the equilibrium moisture is called the _______________ moisture?


aUnbound


bFree


cCritical


dBound


View Answer Free

In case of ______________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated?


aMolecular


bAzeotropic


cExtractive


dFlash


View Answer Extractive

If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is________________?


a0.31


b0.107


c0.017


d0.215


View Answer 0.215

If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be _______________ percent?


a100


b> 100


c< 100


dNone of these


View Answer > 100

McCabe-Thiele method________________?


aUses molal units for material and energy balance


bUses weight fractions to express liquid and vapour composition


cCan use any type of units


dIs more accurate than Ponchon-Savarit method



The relation, Sc = Pr = 1, is valid, when the mechanism of ______________ transfer is same?


aHeat and mass


bMass and momentum


cHeat and momentum


dHeat, momentum and mass


View Answer Heat and mass

Dew point of an air-water vapor mixture_________________?


aDecreases with decrease in pressure


bAt constant humidity & total pressure is fixed


cCorresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve


dAll A , B. & C.


View Answer All A , B. & C.

The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around_________________?


a1


b0.24


c3.97


d600


View Answer 1

Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled_________________?


aAnd humidified


bAnd dehumidified with increase in wet bulb temperature


cAt the same relative humidity


dAnd dehumidified with decrease in wet bulb temperature



Goto Page No.

Page 661 of 843

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan