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Civil Engineering

Environmental Engineering MCQs

Practice Environmental Engineering MCQs for competitive exams.

Environmental Engineering MCQs

Practice questions from this topic.

Assertion A: The consumption of water increases with increase in the distribution pressure. Reason R: Higher distribution pressure causes more loss and waste of water Select your answer according to the coding system given below

  1. A. Both A and R is true and R is the correct explanation of A
  2. B. Both A and R is true but R is not the correct explanation of A
  3. C. A is true but R is false
  4. D. A is false but R is true
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The suitable layout of a distribution system for irregularly growing town is

  1. A. Dead end system
  2. B. Grid iron system
  3. C. Radial system
  4. D. Ring system
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The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is

  1. A. Steel
  2. B. Cast iron
  3. C. Copper
  4. D. Reinforced cement concrete
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Corrosion in concrete sewers is caused by

  1. A. Septic conditions
  2. B. Dissolved oxygen
  3. C. Chlorine
  4. D. Nitrogen
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Chlorine demand of water is equal to

  1. A. Applied chlorine
  2. B. Residual chlorine
  3. C. Sum of applied and residual chlorine
  4. D. Difference of applied and residual chlorine
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The effective size of sand particles used in slow sand filters is

  1. A. 0.25 to 0.35 mm
  2. B. 0.35 to 0.60 mm
  3. C. 0.60 to 1.00 mm
  4. D. 1.00 to 1.80 mm
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The specific gravity of sewage is

  1. A. Much greater than 1
  2. B. Slightly less than 1
  3. C. Equal to 1
  4. D. Slightly greater than 1
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If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is

  1. A. 1000
  2. B. 4000
  3. C. 1,00,000
  4. D. 4,00,000
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The layout of distribution system in which water flows towards the outer periphery is

  1. A. Ring system
  2. B. Dead end system
  3. C. Radial system
  4. D. Grid iron system
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Ground water is usually free from

  1. A. Suspended impurities
  2. B. Dissolved impurities
  3. C. Both suspended and dissolved impurities
  4. D. None of the above
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The most commonly used sewer under culverts is

  1. A. Circular brick sewer
  2. B. Circular cast iron sewer
  3. C. Semi-elliptical sewer
  4. D. Horseshoe type sewer
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On standard silica scale, the turbidity in drinking water should be limited to

  1. A. 10 ppm
  2. B. 20 ppm
  3. C. 30 ppm
  4. D. 50 ppm
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