MCQOPTIONS
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MCQOPTIONS
This section includes 19 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. |
There are protozoa present in the water. Its name is Dinobryen. What is the dose of copper sulfate required to kill it? |
| A. | 0.02ppm |
| B. | 0.3ppm |
| C. | 0.5ppm |
| D. | 0.8ppm |
| Answer» C. 0.5ppm | |
| 2. |
What is the dose of copper sulfate required for the treatment of water? |
| A. | 0.3-0.6ppm |
| B. | 2-6ppm |
| C. | 4-8ppm |
| D. | 10-20ppm |
| Answer» B. 2-6ppm | |
| 3. |
The dose of activated carbon in powdered form is controlled by ____________ |
| A. | Chromatography |
| B. | Distillation |
| C. | Threshold odor test |
| D. | MPN test |
| Answer» D. MPN test | |
| 4. |
Activated carbon can be applied to raw water ______ treatment process. |
| A. | During |
| B. | Ahead of |
| C. | Before |
| D. | After |
| Answer» C. Before | |
| 5. |
Activated carbon in powder form is applied in the mixing basin. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The thickness of the activated carbon filter bed is ____________ |
| A. | 10-20cm |
| B. | 30-80cm |
| C. | 75-100cm |
| D. | 40-50cm |
| Answer» D. 40-50cm | |
| 7. |
Granular activated carbon has a surface area of ____________ |
| A. | 100-200m2/g |
| B. | 500-1400m2/g |
| C. | 400-600m2/g |
| D. | 500-900m2/g |
| Answer» C. 400-600m2/g | |
| 8. |
ACTIVATED_CARBON_CAN_BE_APPLIED_TO_RAW_WATER________TREATMENT_PROCESS.?$ |
| A. | During |
| B. | Ahead of |
| C. | Before |
| D. | After |
| Answer» C. Before | |
| 9. |
What is the dose of copper sulfate required for the treatment of water?$ |
| A. | 0.3-0.6ppm |
| B. | 2-6ppm |
| C. | 4-8ppm |
| D. | 10-20ppm |
| Answer» B. 2-6ppm | |
| 10. |
The_dose_of_activated_carbon_in_powdered_form_is_controlled_by$ |
| A. | Chromatography |
| B. | Distillation |
| C. | Threshold odor test |
| D. | MPN test |
| Answer» D. MPN test | |
| 11. |
There_are_protozoa_present_in_the_water._Its_name_is_Dinobryen._What_is_the_dose_of_copper_sulfate_required_to_kill_it? |
| A. | 0.02ppm |
| B. | 0.3ppm |
| C. | 0.5ppm |
| D. | 0.8ppm |
| Answer» C. 0.5ppm | |
| 12. |
State whether the following statement is true or false? |
| A. | |
| B. | True |
| Answer» B. True | |
| 13. |
When activated carbon is applied at more than one point, then it is called ________ |
| A. | Dual treatment |
| B. | Split treatment |
| C. | Sludge treatment |
| D. | Carbonaceous treatment |
| Answer» C. Sludge treatment | |
| 14. |
The thickness of the activated carbon filter bed is |
| A. | 10-20cm |
| B. | 30-80cm |
| C. | 75-100cm |
| D. | 40-50cm |
| Answer» D. 40-50cm | |
| 15. |
Which of the following is not a property of activated carbon? |
| A. | It is impermeable |
| B. | It has many carbon atoms with free valencies |
| C. | It is available in granular as well as powder form |
| D. | It has a prolonged suspension |
| Answer» B. It has many carbon atoms with free valencies | |
| 16. |
Which of the following is a carbonaceous material? |
| A. | Charcoal |
| B. | Petroleum |
| C. | Hydrogen sulfide |
| D. | Sodium chloride |
| Answer» B. Petroleum | |
| 17. |
_______ is produced by passing a carbonaceous material through a heating mechanism at high temperature. |
| A. | Potassium per-manganate |
| B. | Potassium dichromate |
| C. | Activated carbon |
| D. | Iodine |
| Answer» D. Iodine | |
| 18. |
Granular activated carbon has a surface area of |
| A. | 100-200m<sup>2</sup>/g |
| B. | 500-1400m<sup>2</sup>/g |
| C. | 400-600m<sup>2</sup>/g |
| D. | 500-900m<sup>2</sup>/g |
| Answer» C. 400-600m<sup>2</sup>/g | |
| 19. |
Which of the following is used for the control of taste and odor in water? |
| A. | Sedimentation |
| B. | Coagulation |
| C. | Filtration |
| D. | Activated carbon |
| Answer» E. | |