Civil Engineering MCQs

Page No. 180

Alum as a coagulant is found to be most effective when pH range of water is______________?


a 2 to 4

✖


b4 to 6

✖


c6 to 8

✓


d8 to 10

✖


View Answer 6 to 8

The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally_______________?


aless and more

✖


bless and less

✖


cmore and less

✓


dmore and more

✖


View Answer more and less

Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about_______________?


a 10 to 25

✖


b50

✖


c75

✓


d100

✖


View Answer 75

The length of rectangular sedimentation tank should not be more than_______________?


aB

✖


b 2B

✖


c4B

✓


d8B

✖



The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of________________?


a1 mg/litre

✖


b10 mg/litre

✓


c100 mg/litre

✖


d1000 mg/litre

✖


View Answer 10 mg/litre

If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to________________?


atotal alkalinity

✓


btotal hardness

✖


c total hardness – total alkalinity

✖


d non carbonate hardness

✖


View Answer total alkalinity

Residual chlorine in water is determined by____________


astarch iodide method

✖


b orthotolidine method

✖


cboth (A) and (B)

✓


dnone of the above

✖


View Answer both (A) and (B)

Turbidity is measured on_______________?


astandard silica scale

✓


bstandard cobalt scale

✖


c standard platinum scale

✖


d platinum cobalt scale

✖



The maximum permissible limit for flouride in drinking water is______________?


a0.1 mg/litre

✖


b1.5 mg/litre

✓


c5 mg/litre

✖


d 10 mg/litre

✖


View Answer 1.5 mg/litre

Alkalinity in water is expressed as milli-grams per litre in terms of equivalent_______________?


a calcium carbonate

✓


bmagnesium carbonate

✖


csodium carbonate

✖


d calcium hydroxide

✖


View Answer calcium carbonate

Goto Page No.

Page 180 of 302

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