

MCQOPTIONS
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This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which of these is not a result of low moisture content? |
A. | low total capacity |
B. | difficult to regenerate |
C. | no removal of big ions |
D. | tendency to fouling |
Answer» B. difficult to regenerate | |
2. |
Which of these is not a result of high moisture content? |
A. | Fast exchange |
B. | Good adsorption properties |
C. | Low total capacity |
D. | High total capacity |
Answer» E. | |
3. |
______ is the number of sites where exchange actually takes place during one cycle. |
A. | Total capacity |
B. | Operating capacity |
C. | Mean capacity |
D. | Resin capacity |
Answer» C. Mean capacity | |
4. |
Total capacity is the number of exchangeable bi-valent ions. |
A. | True |
B. | False |
Answer» C. | |
5. |
What is the percentage of resin sample that is considered for effective size? |
A. | 10% |
B. | 20% |
C. | 30% |
D. | 40% |
Answer» B. 20% | |
6. |
What is the percentage of resin volume considered for the mean diameter? |
A. | 20% |
B. | 30% |
C. | 40% |
D. | 50% |
Answer» E. | |
7. |
Mean diameter is also called as ______ |
A. | Actual diameter |
B. | Radius |
C. | Median diameter |
D. | Effective size |
Answer» D. Effective size | |
8. |
______ is the value of the sieve opening through which exactly 50 % of the resin volume passes. |
A. | Mean diameter |
B. | Effective size |
C. | Harmonic mean size |
D. | Uniformity coefficient |
Answer» B. Effective size | |
9. |
The number of active groups in a resin sample fluctuates. |
A. | True |
B. | False |
Answer» C. | |
10. |
What is the percentage of swelling between the chlorine and the hydroxide forms? |
A. | 10% |
B. | 20% |
C. | 30% |
D. | 40% |
Answer» D. 40% | |
11. |
Amberjet 4400 has a total capacity of ________ in the chlorine form. |
A. | 0.5 eq/L |
B. | 1 eq/L |
C. | 1.5 eq/L |
D. | 2 eq/L |
Answer» D. 2 eq/L | |