Environmental Engineering MCQs with answers Page - 1

Here, you will find a collection of MCQ questions on Environmental Engineering. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

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Q. ________ cannot control the noise pollution.

  • (A) Use of silencers
  • (B) Green house gases
  • (C) Vibration damping
  • (D) Tree plantation

A

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Q. ________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant.

  • (A) Calcium
  • (B) Fluorine
  • (C) Phosphorous
  • (D) Sulphur

A

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Q. ________ is removed from water by lime-soda process.

  • (A) Foul smell and taste
  • (B) Iron and manganese
  • (C) Temporary hardness
  • (D) Permanent hardness

A

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Q. _________ is the process of killing organism in water.

  • (A) Coagulation
  • (B) Sterilisation
  • (C) Disinfection
  • (D) Sedimentation

A

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Q. ________ plant emits large amount of SO2 as an air pollutant.

  • (A) Nitric acid
  • (B) Sulphuric acid
  • (C) Chlor alkali
  • (D) Iron & steel

A

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Q. _______ substances present in sewage are removed in grit chamber during sewage treatment.

  • (A) Organic
  • (B) Fatty
  • (C) Inorganic
  • (D) Dissolved

A

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Q. Which of the following is a secondary air pollutant?

  • (A) Photochemical smog
  • (B) Sulphur dioxide
  • (C) Nitrogen dioxide
  • (D) Dust particles

A

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Q. 5-200 μm size particles are called

  • (A) Colloids or aerosols
  • (B) Powder
  • (C) Dust
  • (D) Smoke

A

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Q. 80% less than 200 mesh size particles are called

  • (A) Smoke
  • (B) Powder
  • (C) Grit
  • (D) Aggregates

A

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Q. A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from _________ ppm.

  • (A) 1000 to 2000
  • (B) 3000 to 6000
  • (C) 6000 to 9000
  • (D) 10000 to 100000

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