TestUstad

In a water distribution system, chlorine residual is maintained mainly to:

Correct answer: B. Prevent microbial regrowth during conveyance

  • A. Increase the alkalinity of water
  • B. Prevent microbial regrowth during conveyance
  • C. Remove dissolved calcium from water
  • D. Improve the settling of suspended solids

Explanation

A chlorine residual helps control microorganisms that may enter or regrow within storage tanks and pipelines. It is not intended to soften water or improve sedimentation.

Written and checked by , MS Computer ScienceLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? support@testustad.com

About Environmental Engineering

Environmental engineering examines water supply, water quality, treatment processes, wastewater collection and treatment, solid waste management, air pollution and public health protection. It covers sedimentation, coagulation, filtration, disinfection, biological treatment and disposal methods, while distinguishing drinking-water treatment from sewage treatment and BOD from COD.

Practise Environmental Engineering

80 free Environmental Engineering MCQs from Civil Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Start a free Environmental Engineering testAll Environmental Engineering MCQs

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Civil Engineering questions like this

Civil Engineering is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Assistant Director Engineering Civil Engineering80 MCQsAssistant Engineer Civil Test Civil Engineering80 MCQsSub Engineer Civil Test Civil Engineering70 MCQs

More Environmental Engineering questions

What is a key limitation of ultraviolet disinfection compared with chlorination?

What is the main function of flocculation after coagulant addition in water treatment?

Which process is commonly used to reduce excessive hardness in drinking water?

Which sewer arrangement carries domestic sewage and stormwater in the same pipe?

A trickling filter treats wastewater mainly by using:

What is the principal purpose of anaerobic digestion of sewage sludge?