Water (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 4 of 7

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 385 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 1

» Water » Physico - Chemical and Bacteriological Sampling and Water Quality Analysis

Appeared in Year: 2011

MCQ▾

Question

The instrument used for determination of transparency of water is (June NET Paper 2)

Choices

Choice (4) Response

a.

Conductivity Bridge

b.

Sechhi disc

c.

Spectrophotometer

d.

Ekman dredge

Question number: 2

» Water » Types of Water Pollution

Appeared in Year: 2015

MCQ▾

Question

If a phosphorous limited lake having surface area equal to Equation is fed by stream with flow rate Equation that has phosphorous concentration of Equation , then the phosphorous loading from the incoming stream is (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Water » Types of Water Pollution

Appeared in Year: 2015

MCQ▾

Question

Filamentous Cyanobacteria differentiate 5 to 10 % of their vegetative cells into heterocysts. Heterocysts are characterized by:

(I) Thick cell wall

(II) Only PSI activity

(III) Nitrogenase activity

Choose the correct answer: (June)

Choices

Choice (4) Response

a.

(I) and (III) only

b.

(II) and (III) only

c.

(I) only

d.

(I), (II) and (III)

Question number: 4

» Water » Standards, Sewage and Waste Water Treatment and Recycling

Appeared in Year: 2015

MCQ▾

Question

Which one of the following is not correct for drip irrigation? - (June)

Choices

Choice (4) Response

a.

Drip consists of a network of perforated plastic tubing below the ground surface

b.

This techniques was developed in Israel in the 1960’s

c.

Small holes in the tubing drops off water at a slow rate close to plant roots

d.

Drip irrigation increases fertilizer use and water pollution from fertilizer run-off

f Page
Sign In