Explore topic-wise MCQs in Environmental Engineering.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

The permissible concentration of PM 10 in the air is ___________

A. 60μg/m3
B. 40μg/m3
C. 50μg/m3
D. 20μg/m3
Answer» B. 40μg/m3
Discussion
2.

The minimum size of the smoke particle is ___________

A. 0.2μm
B. 1μm
C. 0.8μm
D. 0.5μm
Answer» E.
Discussion
3.

The maximum size of fly ash is ___________

A. 1μm
B. 100μm
C. 1000μm
D. 10μm
Answer» D. 10μm
Discussion
4.

THE_PERMISSIBLE_CONCENTRATION_OF_PM_10_IN_THE_AIR_IS?$

A. 60μg/m<sup>3</sup>
B. 40μg/m<sup>3</sup>
C. 50μg/m<sup>3</sup>
D. 20μg/m<sup>3</sup>
Answer» B. 40‚âà√≠¬¨‚à´g/m<sup>3</sup>
Discussion
5.

Which of the following is a secondary air pollutant?

A. SPM
B. PAN
C. SO<sub>2</sub>
D. NO<sub>2</sub>
Answer» C. SO<sub>2</sub>
Discussion
6.

The minimum size of smoke particle is

A. 0.2μm
B. 1μm
C. 0.8μm
D. 0.5μm
Answer» E.
Discussion
7.

Which of the following leads to a disease called broncho spasm?

A. SO<sub>2</sub>
B. SO<sub>3</sub>
C. SO<sub>4</sub>
D. CO<sub>2</sub>
Answer» C. SO<sub>4</sub>
Discussion
8.

The maximum size of fly ash is

A. 1μm
B. 100μm
C. 1000μm
D. 10μm
Answer» D. 10‚âà√≠¬¨‚à´m
Discussion
9.

X ray films are a source of which of the following gas?

A. SO<sub>2</sub>
B. CO<sub>2</sub>
C. NO<sub>2</sub>
D. SO<sub>3</sub>
Answer» D. SO<sub>3</sub>
Discussion
10.

Which of the following is a liquid form of aerosol?

A. Fume
B. Dust
C. Mist
D. Smoke
Answer» D. Smoke
Discussion
11.

Which of the following is involved in production of carboxy haemoglobin?

A. CO
B. SO<sub>2</sub>
C. NO<sub>2</sub>
D. NO<sub>3</sub>
Answer» B. SO<sub>2</sub>
Discussion
12.

Which gas is mainly produced due to incomplete burning of wood?

A. CO
B. SO<sub>2</sub>
C. NO<sub>2</sub>
D. NO<sub>3</sub>
Answer» B. SO<sub>2</sub>
Discussion