MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The zeolite process is unsuitable for water containing iron and manganese. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following is a disadvantage of the zeolite process? |
| A. | No sludge is formed |
| B. | The process is almost automatic |
| C. | Suspended impurities get deposited around the zeolite particles |
| D. | Zero hardness can be occurred |
| Answer» D. Zero hardness can be occurred | |
| 3. |
The thickness of the layers of filter sand of zeolite softener is ____________ |
| A. | 20cm |
| B. | 30cm |
| C. | 40cm |
| D. | 100cm |
| Answer» E. | |
| 4. |
Permutit has an exchange value of ________ grams of hardness per m3 of zeolite. |
| A. | 10,000 |
| B. | 20,000-30,000 |
| C. | 35,000-40,000 |
| D. | 40,000-50,000 |
| Answer» D. 40,000-50,000 | |
| 5. |
The chemical formula of Permutit is ____________ |
| A. | SiOAl2O3Na2O |
| B. | SiO2Al2O3Na2O |
| C. | SiO2Al2O3NaO |
| D. | SiO3Al2O3Na2O |
| Answer» C. SiO2Al2O3NaO | |
| 6. |
The color of the natural zeolite is ____________ |
| A. | Green |
| B. | Grey |
| C. | Black |
| D. | Blue |
| Answer» B. Grey | |
| 7. |
Natural zeolite is mainly processed from ____________ |
| A. | White sand |
| B. | Green sand |
| C. | Grey sand |
| D. | Red sand |
| Answer» C. Grey sand | |
| 8. |
The color of the artificial zeolite permutit is ____________ |
| A. | Grey |
| B. | Yellow |
| C. | Green |
| D. | White |
| Answer» E. | |
| 9. |
Zeolites are complex compound of ____________ |
| A. | Aluminium and lime |
| B. | Silica and soda |
| C. | Aluminium, silica and soda |
| D. | Lime and soda |
| Answer» D. Lime and soda | |
| 10. |
THE_THICKNESS_OF_THE_LAYERS_OF_FILTER_SAND_OF_ZEOLITE_SOFTENER_IS?$ |
| A. | 20cm |
| B. | 30cm |
| C. | 40cm |
| D. | 100cm |
| Answer» E. | |
| 11. |
State whether the following statement is true or false$ |
| A. | |
| B. | True |
| Answer» B. True | |
| 12. |
Which_of_the_following_is_a_disadvantage_of_zeolite_process?$ |
| A. | No sludge is formed |
| B. | The process is almost automatic |
| C. | Suspended impurities get deposited around the zeolite particles |
| D. | Zero hardness can be occurred |
| Answer» D. Zero hardness can be occurred | |
| 13. |
Permutit has an exchange value of ________ grams of hardness per m3 of zeolite? |
| A. | 10,000 |
| B. | 20,000-30,000 |
| C. | 35,000-40,000 |
| D. | 40,000-50,000 |
| Answer» D. 40,000-50,000 | |
| 14. |
The chemical formula of Permutit is |
| A. | SiOAl<sub>2</sub>O<sub>3</sub>Na<sub>2</sub>O |
| B. | SiO<sub>2</sub>Al<sub>2</sub>O<sub>3</sub>Na<sub>2</sub>O |
| C. | SiO<sub>2</sub>Al<sub>2</sub>O<sub>3</sub>NaO |
| D. | SiO<sub>3</sub>Al<sub>2</sub>O<sub>3</sub>Na<sub>2</sub>O |
| Answer» C. SiO<sub>2</sub>Al<sub>2</sub>O<sub>3</sub>NaO | |
| 15. |
The color of the natural zeolite is |
| A. | Green |
| B. | Grey |
| C. | Black |
| D. | Blue |
| Answer» B. Grey | |
| 16. |
Natural zeolite are mainly processed from |
| A. | White sand |
| B. | Green sand |
| C. | Grey sand |
| D. | Red sand |
| Answer» C. Grey sand | |
| 17. |
The color of the artificial zeolite permutit is |
| A. | Grey |
| B. | Yellow |
| C. | Green |
| D. | White |
| Answer» E. | |
| 18. |
Zeolites are complex compound of |
| A. | Aluminium and lime |
| B. | Silica and soda |
| C. | Aluminium, silica and soda |
| D. | Lime and soda |
| Answer» D. Lime and soda | |
| 19. |
In which process of water softening, the chemicals are added to remove hardness from water? |
| A. | Lime soda process |
| B. | Zeolite process |
| C. | Boiling |
| D. | Demineralization process |
| Answer» B. Zeolite process | |
| 20. |
In which process of water softening, ion exchange phenomenon takes place? |
| A. | Lime soda process |
| B. | Zeolite process |
| C. | Boiling |
| D. | Demineralization process |
| Answer» C. Boiling | |