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

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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

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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)

a.

  • (iv)
  • (iii)
  • (i)
  • (ii)

b.

  • (iv)
  • (ii)
  • (iii)
  • (i)

c.

  • (ii)
  • (iii)
  • (iv)
  • (i)

d.

  • (iii)
  • (i)
  • (iv)
  • (ii)

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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.

Edit