Chemical Engineering MCQs

Page No. 48

The pH value of potable water should be between____________________?


a1 to 1.5


b 6.5 to 8


c13 to 14


d 4 to 5


View Answer 6.5 to 8

Which of the following plants does not emit appreciable amount of SO2 in atmosphere ?


aThermal power plant


bPetroleum refinery


cNitric acid plant


dSulphuric acid plant


View Answer Nitric acid plant

Biological oxidation ponds remove organic matters present in the polluted water by _______________?


aUsing the activities of bacteria and other micro organisms


bAerobic oxidation


cBoth A. & B.


dNeither A. nor B.


View Answer Both A. & B.

Black smoke coming out of the chimney of a furnace is an indication of the use of ______________ in the furnace?


aLow amount of excess combustion air


bLarge quantity of excess combustion air


c Hydrocarbon fuel


dPulverised coal as fuel



Presence of nitrates in water in excess of 50 ppm causes________________?


aMethemoglobinemia


bGastroenteritis


cAsphyxiation


d Tooth decay


View Answer Methemoglobinemia

Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?


aPacked scrubber


bGravity settling chamber


c Electrostatic precipitator


dHydrocyclone



Pick out the wrong statement ?


aThe concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere


bStratosphere is rich in ozone and is located just above the troposphere


c Troposphere is a turbulent dusty zone containing much of water vapor and clouds


dThe earth’s atmosphere is an envelope of gases extending upto a height of about 200 kms



Ethanolamine is an absorbent used for the removal of _____________ from air/gas?


aHF


bSO2


cH2S


d Both B. & C.


View Answer Both B. & C.

Which of the following industries discharge mercury as a pollutant ?


aChloro-alkali industry


bTanneries


cBeverage plant


dPhosphoric acid plant



The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of _____________ of water?


aDissolved oxygen content


bBiological oxygen demand


c Vapor pressure


dAll A., B. and C.



Goto Page No.

Page 48 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