MCQOPTIONS
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MCQOPTIONS
This section includes 4 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 permanent hardness is also known as __________ |
| A. | Pseudo hardness |
| B. | Non carbonate hardness |
| C. | Carbonate hardness |
| D. | Brinell hardness |
| Answer» C. Carbonate hardness | |
| 2. |
The temporary hardness in water is due to the presence of __________ |
| A. | Sulfates, Chlorides |
| B. | Sulfates, Chlorides, nitrates |
| C. | Carbonates and bicarbonates |
| D. | Sulfates and carbonates |
| Answer» D. Sulfates and carbonates | |
| 3. |
The permanent hardness in water is due to the presence of __________ |
| A. | Sulfates, Chlorides |
| B. | Sulfates, chlorides, nitrates |
| C. | Carbonates and bicarbonates |
| D. | Sulfates and carbonates |
| Answer» C. Carbonates and bicarbonates | |
| 4. |
The Total hardness of soft water as CaCO3 equivalent is __________ |
| A. | 50ppm |
| B. | 100ppm |
| C. | 150ppm |
| D. | 200ppm |
| Answer» B. 100ppm | |