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 |
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 |
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. |
|
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 |
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. |