Chemical Engineering MCQs

Page No. 691

H2S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H2S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in meters) corresponding to an operating line given by, y = 5x + 0.001 is ______________________?


a2.0

✓


b1.56

✖


c1.0

✖


d0.56

✖


View Answer 2.0

Large scale drying of sugar is done in a _______________ dryer?


aSpouted bed

✖


bTray

✖


cRotary

✓


dTruck

✖


View Answer Rotary

Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is___________________?


aInsoluble in the liquid

✓


bSoluble in the liquid

✖


cNon-ideal in nature

✖


dAt a fixed temperature

✖



During the constant rate period of drying of a solid ?


a5Increased air humidity decreases the rate of drying

✖


bIncreasing the air temperature decreases the drying rate

✖


cSurface evaporation of unbound moisture occurs

✓


dNone of these

✖



Sucrose content in cane sugar may be around ______________________ percent ?


a50

✖


b70

✖


c95

✓


d80

✖


View Answer 95

Use of hydrated lime in water treatment_________________?


aBefore filtration, reduces the bacterial load on filters

✖


bAfter filtration, combats the corrosiveness of water due to the presence of O2 & CO2

✖


cIs to adjust the pH value

✖


dAll A , B. and C.

✓


View Answer All A , B. and C.

Grignard reagent is chemically known as ____________________?


aEthyl magnesium chloride

✓


bMethyl magnesium chloride

✖


cDichlorophenol

✖


dMonochloroacetic acid

✖



Raw materials required for the manufacture of __________________ is acetylene and hydrochloric acid?


aPhthalic anhydride

✖


bVinyl chloride

✓


cMaleic anhydride

✖


dDacron

✖


View Answer Vinyl chloride

Parathion and Malathion are _____________________?


aPesticides

✓


bPlasticisers for unsaturated polyesters

✖


cPain-relieving drugs (analgesic)

✖


dTranquilisers

✖


View Answer Pesticides

Which of the following is not produced on commercial scale from sea water ?


aBromine

✖


bMagnesium compounds

✖


cPotassium compounds

✖


dSodium sulphate

✓


View Answer Sodium sulphate

Goto Page No.

Page 691 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