In disinfection design, the product of disinfectant concentration and contact time is commonly called:
Correct answer: B. The C times T value
- A. The settling index
- B. The C times T value
- C. The sludge age
- D. The loading ratio
Explanation
The C times T value represents disinfectant concentration multiplied by the effective contact time and is used to assess disinfection performance. Sludge age and loading ratio describe biological wastewater treatment, while a settling index concerns solids settling.
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.
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.
More Environmental Engineering questions
Which measure is most effective for controlling particulate emissions from a process furnace at their origin?
Carbon monoxide is particularly harmful because it:
A mature compost is generally identified by its:
In a water-treatment plant, a jar test is mainly performed to determine the:
Temporary hardness in natural water is mainly caused by the presence of:
The main function of an equalization basin in wastewater treatment is to: