Ferrous sulphate
Alum
Lime
Hydrazine
✅ The correct answer is option B.
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.
292. Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes
Blood poisoning
Anaemia
Nervous system disorder
All of the above
✅ The correct answer is option D.
293. Which of the following is not a natural source of air pollution?
Volcanic eruptions and lightening discharges
Biological decay of vegetable matter
Photochemical oxidation of organic matter
None of these
✅ The correct answer is option D.
294. Which of the following causes death by asphyxiation, if its presence in atmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm)?
Benzopyrene
Peroxyacyl nitrate
Carbon monoxide
Sulphur dioxide
✅ The correct answer is option C.