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Civil Engineering Quiz | Practice MCQ #mcq.imBooz

December 12, 2019 by Dr. IM Leave a Comment

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1 >>Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be ?

  • (A) nil
  • (B) 5
  • (C) 10
  • (D) 15

2 >>Acidity in water is caused due to ?

  • (A) Mineral acids
  • (B) Free CO2
  • (C) Iron sulphate
  • (D) All the above

3 >>The transitional middle portion of a logistic curve follows ?

  • (A) a geometric growth
  • (B) a logarithmic growth
  • (C) a first over curve
  • (D) a constant rate

4 >>The velocity of flow does not depend on ?

  • (A) grade of sewer
  • (B) length of sewer
  • (C) hydraulic mean depth of sewer
  • (D) roughness of sewer

Civil Engineering Quiz  | Civil Engineering MCQ

5 >>Pick up the correct statement from the following : ?

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  • (A) Lead and barium salts have toxic effect
  • (B) Arsenic and selenium are poisonous to human health
  • (C) Higher copper content affects the lungs
  • (D) All the above

6 >>The specific retention is least in case of ?

  • (A) Clay
  • (B) Sand
  • (C) Silt
  • (D) Coarse gravel

7 >>Most commonly used pump for lifting water in water supply mains, is ?

  • (A) axialflow pump
  • (B) reciprocating pump
  • (C) rotary type pump
  • (D) centrifugal pumps

8 >>Economic height of a dam is the height corresponding to which ?

  • (A) cost of the dam per unit of storage is minimum
  • (B) amount of silting is less
  • (C) cost of dam per unit storage is maximum
  • (D) free board provided is least

9 >>Distribution mains of any water supply, is normally designed for its average daily requirement ?

  • (A) 1
  • (B) 1.5
  • (C) 2
  • (D) 225%.

10 >>If pH value of water is ?

  • (A) 7 water it is said to be neutral
  • (B) less than 7 it is said to be acidic
  • (C) more than 7 it is said to be alkaline
  • (D) all the above

11 >>In pressure supply mains, water hammer pressure is reduced by providing ?

  • (A) sluice valves
  • (B) air valves
  • (C) pressure relief valves
  • (D) none of the these

12 >>Water supply system includes ?

  • (A) digging a well for water
  • (B) construction of dams
  • (C) construction of canals
  • (D) entire arrangement from source to distribution

13 >>Corrosion of a pipe ?

  • (A) reduces its life span
  • (B) reduces its carrying capacity
  • (C) adds colour to water
  • (D) all the above

14 >>Pick up the correct statement from the following : ?

  • (A) Detention period for plain sedimentation tanks ranges between 4 to 8 hours
  • (B) Detention period for sedimentation tanks, using coagulants usually ranges between 2 to 4 hours
  • (C) The horizontally flow velocity in sedimentation tanks, is generally limited to 0.3 m/minute
  • (D) All the above

15 >>The maximum permissible nitrites in public water supplies, is ?

  • (A) Nil
  • (B) 0.5 P.P.M.
  • (C) 1.0. P.P.M.
  • (D) 1.5 P.P.M

16 >>A high velocity of wash water is required for ?

  • (A) rapid gravity filter with strainers
  • (B) rapid gravity filter without strainers
  • (C) slow sand filter with strainers
  • (D) slow sand filter without strainers

17 >>In distribution pipes, drain valves are provided at ?

  • (A) lower point
  • (B) higher point
  • (C) junction points
  • (D) any where

18 >>Corrosion of well pipes may not be reduced by ?

  • (A) reducing the draw down and the pumping rate
  • (B) reducing the flow velocity
  • (C) using thicker pipes
  • (D) using screens having larger area of openings

19 >>Manholes along the mains from the source to a city are provided at 500 m intervals in ?

  • (A) steel pipes
  • (B) R.C.C. pipes
  • (C) hume steel pipes
  • (D) all the above

20 >>The population growth curve is ?

  • (A) Sshaped curve
  • (B) parabolic curve
  • (C) circular curve
  • (D) straight line

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Filed Under: Competitive Exam Quiz Tagged With: ae, Basic Civil Engineering Quiz, Civil Engineering Questions and Answers, Civil Engineering questions MCQs with answers, Civil Engineering Quiz, cpwd, dda, gate, ies, Multiple Choice Questions on Civil Engineering, previous years civil engineering questions, pwd, ssc

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