MCQOPTIONS
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MCQOPTIONS
This section includes 19 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 maximum draw off rate of chlorine to prevent frosting? |
| A. | 110 Kg |
| B. | 120 Kg |
| C. | 140 Kg |
| D. | 150 Kg |
| Answer» E. | |
| 2. |
If chlorine is drawn off from a cylinder too quickly, the temperature of the air surrounding the tank will increase. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The liquid expands back into a gas as it leaves the cylinder. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
What is the maximum weight of chlorine cylinders? |
| A. | 807 Kg |
| B. | 907 Kg |
| C. | 957 Kg |
| D. | 997 Kg |
| Answer» C. 957 Kg | |
| 5. |
WHAT_IS_THE_MAXIMUM_WEIGHT_OF_CHLORINE_CYLINDERS??$ |
| A. | 807 Kg |
| B. | 907 Kg |
| C. | 957 Kg |
| D. | 997 Kg |
| Answer» C. 957 Kg | |
| 6. |
If chlorine is drawn off from a cylinder too quickly, the temperature of the air surrounding the tank will increase.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
The_liquid_expands_back_into_a_gas_as_it_leaves_the_cylinder.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What is the other name for vacuum chlorinators? |
| A. | Disinfector |
| B. | Solution feeder |
| C. | Hypochlorinators |
| D. | Chlorinators |
| Answer» C. Hypochlorinators | |
| 9. |
Injector of chlorine feed is also called as _____ |
| A. | Rotameter |
| B. | Ejector |
| C. | Feeder |
| D. | Disinfector |
| Answer» C. Feeder | |
| 10. |
What is the instrument used to measure the chlorine feed rate? |
| A. | pH meter |
| B. | Thermometer |
| C. | Rotameter |
| D. | Spectrometer |
| Answer» D. Spectrometer | |
| 11. |
What_is_the_maximum_draw_off_rate_of_chlorine_to_prevent_frosting? |
| A. | 110 Kg |
| B. | 120 Kg |
| C. | 140 Kg |
| D. | 150 Kg |
| Answer» E. | |
| 12. |
What is the minimum pressure required to convert chlorine gas to liquid? |
| A. | 3 Ksc |
| B. | 4 Ksc |
| C. | 5 Ksc |
| D. | 6 Ksc |
| Answer» C. 5 Ksc | |
| 13. |
NaCl is hydrolysed to chlorine and ______ |
| A. | Na |
| B. | NaOH |
| C. | NaI |
| D. | NaNO<sub>3</sub> |
| Answer» C. NaI | |
| 14. |
______ are used when the supply source is greater than 200 Lpm. |
| A. | Chlorinators |
| B. | Vacuum chlorinators |
| C. | Direct feed chlorinators |
| D. | Hypochlorinators |
| Answer» B. Vacuum chlorinators | |
| 15. |
_______ used to perform continuous chlorination in smaller systems. |
| A. | Vacuum chlorinators |
| B. | Chlorine cylinders |
| C. | Direct feed chlorinators |
| D. | Hypochlorinators |
| Answer» E. | |
| 16. |
How is the amount of chlorine adjusted in hypochlorinators? |
| A. | Increasing feed water |
| B. | Decreasing chlorine amount |
| C. | Varying stroke length |
| D. | Increasing treatment time |
| Answer» D. Increasing treatment time | |
| 17. |
In hypochlorinators, the hypochlorite solution is fed into the water by means of _________ |
| A. | Pumps |
| B. | Injectors |
| C. | Manual methods |
| D. | Tanks |
| Answer» B. Injectors | |
| 18. |
Which of the following methods are suggested for a water flow of less than 200 Lpm? |
| A. | Hypochlorinators |
| B. | Vacuum chlorinators |
| C. | Direct feed chlorinators |
| D. | Chlorine cylinders |
| Answer» B. Vacuum chlorinators | |
| 19. |
Which of the following is not true about gas chlorination systems? |
| A. | Disinfection of swimming pools |
| B. | Improves taste |
| C. | Increases algae |
| D. | Controls slime |
| Answer» D. Controls slime | |