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MCQs

Total Questions : 180 | Page 15 of 18 pages
Question 141. The water of the river has an important property known as __________
  1.    Turbidity
  2.    Permeability
  3.    Infiltration capacity
  4.    Self purification
 Discuss Question
Answer: Option D. -> Self purification
Answer: (d).Self purification
Question 142. The type of joint provided to release thermal stresses is called _______
  1.    Socket and spigot joint
  2.    Expansion joint
  3.    Flash joint
  4.    Simplex joint
 Discuss Question
Answer: Option B. -> Expansion joint
Answer: (b).Expansion joint
Question 143. Isolated __________ decrease stability in the ecosystem.
  1.    Food web
  2.    Food chain
  3.    Food pyramid
  4.    Food numbers
 Discuss Question
Answer: Option B. -> Food chain
Answer: (b).Food chain
Question 144. The presence of hydrogen sulphide in water causes ________
  1.    Bad taste
  2.    Acidity
  3.    Basicity
  4.    Softening
 Discuss Question
Answer: Option B. -> Acidity
Answer: (b).Acidity
Question 145. In __________ pipes, the discharging capacity reduces as the life period increases.
  1.    Galvanised Iron
  2.    Cast Iron
  3.    PVC
  4.    Steel
 Discuss Question
Answer: Option A. -> Galvanised Iron
Answer: (a).Galvanised Iron
Question 146. High turbidity of water can be determined by __________
  1.    Hellipe turbidometer
  2.    Baylis turbidometer
  3.    Jackson’s turbidometer
  4.    Turbidity rod
 Discuss Question
Answer: Option B. -> Baylis turbidometer
Answer: (b).Baylis turbidometer
Question 147. Membrane filter technique is used for testing?
  1.    Copper
  2.    E -coli
  3.    Bacteria
  4.    Boron
 Discuss Question
Answer: Option B. -> E -coli
Answer: (b).E -coli
Question 148. The colour of water is expressed in terms of ________
  1.    pH value
  2.    Silica scale
  3.    Platinum cobalt scale
  4.    Ppm
 Discuss Question
Answer: Option C. -> Platinum cobalt scale
Answer: (c).Platinum cobalt scale
Question 149. The odour of water can be determined by _________
  1.    Jackson turbidometer
  2.    Osmoscope
  3.    Thermometer
  4.    Sonoscope
 Discuss Question
Answer: Option B. -> Osmoscope
Answer: (b).Osmoscope
Question 150. The maximum permissible total solid content in water for domestic purposes should not exceed.
  1.    350 ppm
  2.    600 ppm
  3.    500 ppm
  4.    1000 ppm
 Discuss Question
Answer: Option C. -> 500 ppm
Answer: (c).500 ppm

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