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Environmental Engineering | MCQ – 01 | 20 MCQs

Posted on July 1, 2021March 8, 2023 By Civil Vedant

Q.1) The water obtained from the tube wells is known as :

A) Surface water

B) Sub-surface water

C) Run-off

D) Potable water

Answer

Option (B)

Q.2) A pipe sunk into the ground to tap the underground water is called –

A) Open well

B) Tube well

C) Artesian well

D) Infiltration well

Answer

Option (B)

Q.3) The continuous flow of water may be expected from –

A) Surface springs

B) Artesian springs

C) Gravity springs

D) All of the above

Answer

Option (B)

Q.4) Run-off is the water which flows :

A) In infiltration galleries

B) In sewer pipes

C) Due to leakage of pipes

D) In rivers

Answer

Option (D)

Q.5) The growth of population may be conveniently represented by –

A) Semi-logarithmic curve

B) Logistic curve

C) Straight line curve

D) All of the above

Answer

Option (B)

Q.6) In India, as per Indian Standards, water consumption per capita per day for domestic purpose is :

A) 85 litres

B) 100 litres

C) 115 litres

D) 135 litres

Answer

Option (D)

Q.7) The design period for a water supply project is taken as –

A) 5 to 10 years

B) 10 to 15 years

C) 15 to 20 years

D) 20 to 30 years

Answer

Option (D)

Q.8) For large cities, the suitable method for forecasting population is –

A) Arithmetical increase method

B) Graphical method

C) Geometrical increase method

D) Comparative method

Answer

Option (A)

Q.9) The presence of bacteria in water causes :

A) Hardness

B) Alkalinity

C) Diseases

D) Bad taste

Answer

Option (C)

Q.10) The presence of sodium chloride in water –

A) Causes bad taste

B) Softens the water

C) Increases hardness of water

D) Stops epidemic

Answer

Option (B)

Q.11) The maximum permissible color for domestic supplies, on platinum cobalt scale is :

A) 5 to 10 ppm

B) 10 to 20 ppm

C) 20 to 30 ppm

D) 30 to 40 ppm

Answer

Option (B)

Q.12) High turbidity of water can be determined by –

A) Turbidity tube

B) Jackson’s turbidimeter

C) Bayli’s turbidimeter

D) Hellipe turbidimeter

Answer

Option (B)

Q.13) The maximum permissible total solid content in water for domestic purposes should not exceed :

A) 300 ppm

B) 400 ppm

C) 500 ppm

D) 1000 ppm

Answer

Option (C)

Q.14) The most common cause of acidity in water is :

A) Hydrogen

B) Nitrogen

C) Carbon dioxide

D) Oxygen

Answer

Option (C)

Q.15) The maximum permissible chlorine content for public supplies should be between –

A) 0.1 to 0.2 ppm

B) 0.3 to 0.4 ppm

C) 1.2 to 4 ppm

D) 6.5 to 8 ppm

Answer

Option (A)

Q.16) B-coli or E-coli are harmless organisms but their presence in water indicates the –

A) Presence of pathogenic bacteria

B) Absence of pathogenic bacteria

C) Presence of non-pathogenic bacteria

D) Absence of non-pathogenic bacteria

Answer

Option (A)

Q.17) BOD of safe drinking water must be –

A) 0

B) 10

C) 50

D) 100

Answer

Option (A)

Q.18) The detention time for an ordinary plain sedimentation tank is :

A) 1 to 2 Hrs

B) 2 to 4 Hrs

C) 6 to 8 Hrs

D) 20 to 24 Hrs

Answer

Option (C)

Q.19) The velocity of flow in any sedimentation tank should not exceed :

A) 0.05 mm/s

B) 0.5mm/s

C) 5 mm/s

D) 50 mm/s

Answer

Option (C)

Q.20) The most common coagulant is –

A) Magnesium Sulphate

B) Alum

C) Chlorine

D) Bleaching Powder

Answer

Option (B)

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Environment Engg. Tags:civil engineerig objective, civil engineering mcqs, environmental engineering, previous questions

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