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. |
Which of the following statement is wrong regarding turbidity? |
| A. | It is an extent to which light is absorbed by particles in the water |
| B. | It is expressed in ppm |
| C. | It depends on the fineness of particle present in the water |
| D. | Turbidity rod is a laboratory method to measure turbidity |
| Answer» E. | |
| 2. |
The range of temperature of water that is required to do the temperature test is __________ |
| A. | 10-250C |
| B. | 0-250C |
| C. | 10-300C |
| D. | 20-300C |
| Answer» B. 0-250C | |
| 3. |
One JTU is equivalent to turbidity produced by __________ |
| A. | 1mg of fine silica dissolved in 1L of distilled water |
| B. | 1g of fine silica dissolved in 1L of distilled water |
| C. | 1g of fine silica dissolved in 1ml of distilled water |
| D. | 1mg of fine silica dissolved in 1ml of distilled water |
| Answer» B. 1g of fine silica dissolved in 1L of distilled water | |
| 4. |
The range for threshold odour number is __________ |
| A. | 0-3 |
| B. | 1-5 |
| C. | 1-3 |
| D. | 0-5 |
| Answer» D. 0-5 | |
| 5. |
The maximum permissible limit for suspended solids is ____________ |
| A. | 10 mg/l |
| B. | 20 mg/l |
| C. | 30 mg/l |
| D. | 40 mg/l |
| Answer» D. 40 mg/l | |
| 6. |
ONE_JTU_IS_EQUIVALENT_TO_TURBIDITY_PRODUCED_BY?$ |
| A. | 1mg of fine silica dissolved in 1L of distilled water |
| B. | 1g of fine silica dissolved in 1L of distilled water |
| C. | 1g of fine silica dissolved in 1ml of distilled water |
| D. | 1mg of fine silica dissolved in 1ml of distilled water |
| Answer» B. 1g of fine silica dissolved in 1L of distilled water | |
| 7. |
The range of temperature of water that is required to do the temperature test is__ 0C.$ |
| A. | 10-25 |
| B. | 0-25 |
| C. | 10-30 |
| D. | 20-30 |
| Answer» B. 0-25 | |
| 8. |
If_the_PO_value_is_6,_what_does_it_imply?$ |
| A. | No perceptible odour |
| B. | Very faint odour |
| C. | Very distinct odour |
| D. | Extremely strong odour |
| Answer» E. | |
| 9. |
When depth of insertion of turbidity rod increases, the reading in the turbidity rod ___ |
| A. | Decreases |
| B. | Increases |
| C. | First decrease, then increase |
| D. | Remains constant |
| Answer» B. Increases | |
| 10. |
What is the full form of NTU in context with turbidity? |
| A. | Number of transfer unit |
| B. | Neurological turbidity unit |
| C. | Nephelometric turbidity unit |
| D. | Network terminal unit |
| Answer» D. Network terminal unit | |
| 11. |
The permissible limit of turbidity of domestic water is ____ ppm. |
| A. | 5-10 |
| B. | 1-5 |
| C. | 10-50 |
| D. | 10-30 |
| Answer» B. 1-5 | |
| 12. |
Which_of_the_following_statement_is_wrong_regarding_turbidity? |
| A. | It is an extent to which light is absorbed by particles in the water |
| B. | It is expressed in ppm |
| C. | It depends on the fineness of particle present in the water |
| D. | Turbidity rod is a laboratory method to measure turbidity |
| Answer» E. | |
| 13. |
The range for threshold odour number is |
| A. | 0-3 |
| B. | 1-5 |
| C. | 1-3 |
| D. | 0-5 |
| Answer» D. 0-5 | |
| 14. |
1 TCU (True Color Unit) is equivalent to _____ |
| A. | The color produced by 1 g of platinum cobalt |
| B. | The color produced by 1 mg of platinum cobalt |
| C. | The color produced by 1 mg of platinum cobalt in 1L of distilled water |
| D. | The color produced by 1 mg of platinum cobalt in 1mL of distilled water |
| Answer» D. The color produced by 1 mg of platinum cobalt in 1mL of distilled water | |
| 15. |
Which method is used to measure the color of water? |
| A. | Gravimetric analysis |
| B. | Chromatography |
| C. | Tintometer method |
| D. | Hydrometer analysis |
| Answer» D. Hydrometer analysis | |
| 16. |
Identify the correct relation between the following? |
| A. | Dissolved solid = Total solid + Suspended solid |
| B. | Dissolved solid = Total solid – Suspended solid |
| C. | Total solid = Dissolved solid / Suspended solid |
| D. | Dissolved solid = Suspended solid – Total solid |
| Answer» C. Total solid = Dissolved solid / Suspended solid | |
| 17. |
The maximum permissible limit for suspended solids is ___ |
| A. | 10 mg/l |
| B. | 20 mg/l |
| C. | 30 mg/l |
| D. | 40 mg/l |
| Answer» D. 40 mg/l | |
| 18. |
Suspended solids are measured by which of the following? |
| A. | Turbidity rod |
| B. | Gravimetric test |
| C. | Chromatography |
| D. | Jackson’s turbidity meter |
| Answer» C. Chromatography | |
| 19. |
The size of suspended solids lies in the range of ________ |
| A. | 10<sup>-3</sup> – 10<sup>-6</sup> mm |
| B. | 10<sup>3</sup> – 10<sup>6</sup> mm |
| C. | 10<sup>-1</sup> – 10<sup>-3</sup> mm |
| D. | 10<sup>1</sup> – 10<sup>3</sup> mm |
| Answer» D. 10<sup>1</sup> ‚Äö√Ñ√∂‚àö√ë‚àö¬® 10<sup>3</sup> mm | |