Environmental Engineering MCQs with answers Page - 41

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

Admin • 802.91K Points
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Q. Ultra-violet rays are used for the treatment of water known as

  • (A) Dechlorination
  • (B) Aeration
  • (C) Disinfection
  • (D) Filtration

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Q. The process of kolling at the pathogenic bacteria of water-borne diseases to make it safe for hospital use, is known as

  • (A) Zeoliting
  • (B) Debacterialisation
  • (C) Chlorination
  • (D) Sterilization

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Q. In one litre sample of drinking water the coliform organism should not exceed

  • (A) 1
  • (B) 100
  • (C) 10
  • (D) 1000

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Q. Turbidity in water may be removed by

  • (A) Aeration
  • (B) Sedimentation
  • (C) Oxidation
  • (D) Filtration

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Q. Which one of the following is not directly related to the phenomenon of evaporation?

  • (A) None of these
  • (B) Temperature of liquid
  • (C) Surface winds over the liquid
  • (D) Volume of the liquid

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Admin • 802.91K Points
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Q. The process of passing the water through a thick layer of filtering media is known as

  • (A) Sedimentation
  • (B) Disinfection
  • (C) Putrification
  • (D) Filtration

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Q. In case of public supplies, the maximum permissible nitrite content is

  • (A) 250 ppm
  • (B) 100 ppm
  • (C) 50 ppm
  • (D) zero ppm

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Q. The presence of which of the following material in water is not considered to be dangerous?

  • (A) Copper
  • (B) Zinc
  • (C) Mercury
  • (D) Calcium

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Q. The desirable temperature of portable water is

  • (A) 10?C
  • (B) 37?C
  • (C) 27?C
  • (D) zero degree centigrade

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