Air-Principles and Instruments for Measurements [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 1 - 5 of 6

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Question 1

Appeared in Year: 2019

Question MCQ▾

According to National Ambient Air Quality Standards (NAAQS) annual average concentration () for SO2 and NO2 in ecologically sensitive areas are (July)

Choices

Choice (4)Response

a.

50 and 20 respectively

b.

80 and 47 respectively

c.

20 and 30 respectively

d.

20 and 60 respectively

Edit

Question 2

Appeared in Year: 2018

Question MCQ▾

Transpiration rate in early successional plants are:

Choices

Choice (4)Response

a.

High

b.

Medium

c.

Very Low

d.

Low

Edit

Question 3

Appeared in Year: 2019

Question Match List-Ⅰ List-Ⅱ▾

Match List-I (Gases) with List-II (Measurement Techniques) : (July)

List-Ⅰ (Gases)List-Ⅱ (Measurement Techniques)
(A)

Ozone

(i)

Pulsed Fluorescence

(B)

CO

(ii)

Ultraviolet Absorption

(C)

SO2

(iii)

IR Absorption

(D)

NO2

(iv)

Chemiluminescence

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iii)
  • (i)
  • (iv)

b.

  • (i)
  • (ii)
  • (iv)
  • (iii)

c.

  • (iii)
  • (i)
  • (ii)
  • (iv)

d.

  • (i)
  • (iii)
  • (iv)
  • (ii)

Edit

Question 4

Appeared in Year: 2016

Question MCQ▾

Keeling curve presents the yearly variations in the concentration of (September)

Choices

Choice (4)Response

a.

Methane

b.

Carbon dioxide

c.

Sulfur dioxide

d.

Ozone

Edit

Question 5

Appeared in Year: 2018

Question MCQ▾

The Keeling curve is a plot between:

Choices

Choice (4)Response

a.

The solar intensity and time of the day

b.

The altitude and the temperature of the day.

c.

The concentration of ozone and the altitude.

d.

The concentration of and the year of measurement.

Edit