Water-Measurement of Water Quality Parameters [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 1 - 4 of 8
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Question 1
Appeared in Year: 2018
Question MCQ▾
Temporary hardness is caused by: (July)
Choices
Choice (4) | Response | |
---|---|---|
a. | Magnesium Sulfate | |
b. | Calcium Sulfate | |
c. | Magnesium carbonate | |
d. | Magnesium chloride |
Question 2
Appeared in Year: 2017
Question MCQ▾
In an aquatic system, the presence of noxious gases such as H2S and CH4 is associated with: (January)
Choices
Choice (4) | Response | |
---|---|---|
a. | Absence of macrophytic vegetation | |
b. | Excess of dissolved oxygen | |
c. | Oxygen depletion | |
d. | Abundant algal growth |
Question 3
Appeared in Year: 2017
Question Match List-Ⅰ List-Ⅱ▾
Match the List – I and List – II. Identify the correct answer from the codes given below: (January)
List-Ⅰ (Water Type) | List-Ⅱ (Conductivity μS Cm– 1) |
---|---|
(A) Organically enriched river | (i) < 300 |
(B) Clean tap water | (ii) 2 – 4 |
(C) Clean upland river | (iii) 60 – 100 |
(D) Fresh water | (iv) > 500 |
Choices
Choice (4) | Response | |
---|---|---|
| ||
a. |
| |
b. |
| |
c. |
| |
d. |
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Question 4
Appeared in Year: 2016
Question MCQ▾
A wetland ecosystem has a very high Biological Oxygen Demand (BOD) . Which of the following statement about such a wetland is correct? (July)
Choices
Choice (4) | Response | |
---|---|---|
a. | It is highly turbid. | |
b. | It has high level of microbial pollution. | |
c. | It has very low level of microbial pollution. | |
d. | There is no microbial pollution. |