Disinfection Methods MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Disinfection Methods, a fundamental topic in the field of Environmental Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Disinfection Methods MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Disinfection Methods mcq questions that explore various aspects of Disinfection Methods problems. Each MCQ is crafted to challenge your understanding of Disinfection Methods principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Environmental Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Disinfection Methods MCQs are your pathway to success in mastering this essential Environmental Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Disinfection Methods. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Disinfection Methods knowledge to the test? Let's get started with our carefully curated MCQs!

Disinfection Methods MCQs | Page 5 of 8

Q41.
When turbidity in water increases, the efficiency of chlorine?
Discuss
Answer: (a).Decreases
Q42.
The presence of metallic compounds in water _______ the efficiency of chlorine.
Discuss
Answer: (a).Decreases
Q43.
The amount of hypochlorous acid formed when pH of water is 8 is _______________
Discuss
Answer: (c).30% of total free chlorine
Discuss
Answer: (c).When the pH of the water decreases
Q45.
The contact time for disinfection by free chlorine is ______________
Discuss
Answer: (a).20 minutes
Q46.
The contact time for disinfection by combined chlorine is ______________
Discuss
Answer: (d).60 minutes
Q47.
Consider the following variables.

i. Concentration of disinfectant
ii. Concentration of organisms
iii. Temperature
iv. Time of contact

Disinfection is the function of which of the following variables?
Discuss
Answer: (c).i, ii, iii, iv
Q48.
According to which of the following, organism destroyed by disinfection is proportional to organism remaining?
Discuss
Answer: (b).Chicks law
Q49.
Which of the following is the expression of Chicks law?
Discuss
Answer: (a).Dy/Dt = k (N – y)
Q50.
The integration of the expression of Chicks law is given by ____________
Discuss
Answer: (d).N1/N = e^(-kt)
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