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This section includes 13 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. |
What is the permeate flux of the RO membrane FT-30? |
A. | 0.5 |
B. | 0.8 |
C. | 1 |
D. | 1.2 |
Answer» D. 1.2 | |
2. |
Which among the following has the highest percentage of salt rejection? |
A. | NS-100 |
B. | NS-200 |
C. | NS-300 |
D. | CP |
Answer» C. NS-300 | |
3. |
What is the percentage of salt rejection of NS-100 RO membrane? |
A. | 99.8% |
B. | 99 % |
C. | 98.5 % |
D. | 97 % |
Answer» C. 98.5 % | |
4. |
What is the material used in the making of BARC-TFC2 membrane? |
A. | Aromatic polyamide |
B. | Polyamide |
C. | Sulphonated polyfuran |
D. | Sulphonated polysulphone |
Answer» C. Sulphonated polyfuran | |
5. |
What is the material used in the making of NS-200 membrane? |
A. | Sulphonated polyfuran |
B. | Sulphonated polysulphone |
C. | Polypiperazine-amide |
D. | Aromatic polyamide |
Answer» B. Sulphonated polysulphone | |
6. |
What is the pore size of MFI-type zeolite nanoparticle? |
A. | 0.32 nm |
B. | 0.48 nm |
C. | 0.56 nm |
D. | 0.62 nm |
Answer» D. 0.62 nm | |
7. |
What is the pore size of LTA-type zeolite nanoparticle? |
A. | 0.2 nm |
B. | 0.4 nm |
C. | 0.6 nm |
D. | 0.8 nm |
Answer» C. 0.6 nm | |
8. |
Which of the following materials is not used in the preparation of nanocomposite support membranes? |
A. | Silica (50 nm) |
B. | Zeolite (250 nm) |
C. | Silica (120 nm) |
D. | Zinc (135 nm) |
Answer» E. | |
9. |
The chlorine resistant polyamide membranes are prepared from aliphatic polypiperazine amides. |
A. | True |
B. | False |
Answer» B. False | |
10. |
Which of the following membrane is used in the osmosis process? |
A. | Impermeable membrane |
B. | Semi-permeable membrane |
C. | Permeable membrane |
D. | Non-porous membrane |
Answer» C. Permeable membrane | |
11. |
In RO, the solvent passes through the membrane at a much faster rate than the dissolved solids. |
A. | True |
B. | False |
Answer» B. False | |
12. |
What is the membrane that selectively allows certain species to pass through called? |
A. | Permeable membrane |
B. | Semi-permeable membrane |
C. | Impermeable membrane |
D. | Membrane |
Answer» C. Impermeable membrane | |
13. |
Where did the research on reverse osmosis begin? |
A. | University of Bangalore |
B. | University of Florida |
C. | University of Columbia |
D. | University of California |
Answer» C. University of Columbia | |