Low amount of excess combustion air
Large quantity of excess combustion air
Hydrocarbon fuel
Pulverised coal as fuel
✅ The correct answer is option A.
Environmental Engineering MCQs
Enhance your preparation with our Environmental Engineering MCQs with answers and explanations. Our collection covers key topics such as water and wastewater treatment, air pollution control, solid waste management, environmental impact assessment, sustainability, and environmental regulations. These multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and environmental engineering job assessments. Practice online to strengthen your concepts, improve problem-solving skills, and excel in exams with our updated Environmental Engineering MCQs.
2. A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth’s atmosphere, which absorbs it.
Hydrogen
Carbon dioxide
Ozone
None of these
✅ The correct answer is option C.
3. Most of the atmospheric air pollutants are present in large quantity in
Stratosphere
Thermosphere
Trophosphere
Mesosphere
✅ The correct answer is option C.
4. Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
Gravity settling chamber
Cyclone separator
Electrostatic precipitator
Bag filter
✅ The correct answer is option C.
5. Maximum permissible turbidity in potable water is __________ ppm.
1
10
250
1000
✅ The correct answer is option B.
6. Which of the following is a secondary air pollutant?
Photochemical smog
Sulphur dioxide
Nitrogen dioxide
Dust particles
✅ The correct answer is option A.
7. The pH value of oxidised sewage is about
1.8
6.2
7.3
13.4
✅ The correct answer is option C.
8. Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by
Chemical coagulation
Floatation & skimming
Centrifugation
Ultrafiltration
✅ The correct answer is option A.
9. Reingleman chart is used for the evaluation of __________ pollution.
Air
Water
Noise
Radioactive
✅ The correct answer is option A.
10. Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants?
NOx
Hg
SO₂
F
✅ The correct answer is option C.