Water Supply Engineering [IES-ESE (Engineering Services) Civil Engineering]: Questions 1 - 4 of 39
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Question 1
Appeared in Year: 2018
Question MCQ▾
The purpose of re-carbonation after water softening by the lime-soda process is the
Choices
Choice (4) | Response | |
---|---|---|
a. | Conversion of precipitates to soluble forms in the water | |
b. | Removal of non-carbonate hardness in the water | |
c. | Recovery of lime from the water | |
d. | Removal of excess soda from the water |
Question 2
Appeared in Year: 2018
Question MCQ▾
Consider the following statements regarding waste stabilization ponds:
- The pond has a symbiotic process of waste stabilization through algae on one hand and bacteria on the other
- The oxygen in the pond is provided by algae through photosynthesis
- The detention period is of the order of two to three days
- The bacteria which develop in the pond are aerobic bacteria
Which of the above statements are correct?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1 and 2 only | |
b. | 2 and 3 only | |
c. | 1 and 4 only | |
d. | 3 and 4 only |
Question 3
Appeared in Year: 2018
Question MCQ▾
Five-days BOD of a diluted sample having DO and consumption of oxygen in blank will be
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 4
Appeared in Year: 2018
Question MCQ▾
Consider the following statements regarding groundwater pollutants:
- Most of the ground waters are generally non-alkaline
- A moderate amount of fluoride, about , in drinking water, would help in good development of teeth
- Natural waters do not have dissolved mineral matter in them
Which of the above statements is/are correct?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1,2 and 3 | |
b. | 1 only | |
c. | 3 only | |
d. | 2 only |