Environmental Engineering MCQs with answers Page - 5

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. Disinfection of water is done to remove

  • (A) Color
  • (B) Bad taste
  • (C) Foul odour
  • (D) Bacteria

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Q. Dissolved oxygen content in river water is around _________ ppm.

  • (A) 5
  • (B) 100
  • (C) 250
  • (D) 500

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Q. During sewage treatment, the sewage is subjected to _________ treatment in Imhoff tank.

  • (A) Filtration
  • (B) Digestion
  • (C) Sedimentation
  • (D) Both (B) and (C)

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Q. During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum?

  • (A) Idle running
  • (B) Acceleration
  • (C) Cruising
  • (D) Deceleration

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Q. Dust collection efficiency of a cyclone separator depends upon its

  • (A) Diameter
  • (B) Inlet gas velocity
  • (C) Overall height
  • (D) All (A), (B) & (C)

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Q. Ethanolamine is an absorbent used for the removal of _________ from air/gas.

  • (A) HF
  • (B) SO2
  • (C) H2S
  • (D) Both (B) & (C)

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Q. Exposure to chemicals having carcinogenic properties cause

  • (A) Dermatitis (skin disorder)
  • (B) Cancer
  • (C) Asphyxiation
  • (D) Asthma

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Q. Exposure to small amount of _________ results in high blood pressure & heart disease in human beings.

  • (A) Hydrogen sulphide
  • (B) Mercury
  • (C) Cadmium
  • (D) Asbestos

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Q. Exposure to SO2 containing chimney gases results in the

  • (A) Reduction in strength of leather & cloth
  • (B) Acceleration of corrosion rates of metals
  • (C) Increased drying & hardening time of paints
  • (D) All (A), (B) and (C)

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Q. Fine grit present in sewage is removed in the _________ during sewage treatment.

  • (A) Grit chamber
  • (B) Detritus tank
  • (C) Trickling filter
  • (D) Skimming tank

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