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MCQs

Total Questions : 199 | Page 19 of 20 pages
Question 181. Boron concentration is irrigation water is considered safe only upto_________________?
  1.    0.7 ppm
  2.    1.5 ppm
  3.    2 ppm
  4.    3 ppm
 Discuss Question
Answer: Option A. -> 0.7 ppm
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 182. Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?
  1.    250ºC
  2.    1000ºC
  3.    550ºC
  4.    1250ºC
 Discuss Question
Answer: Option B. -> 1000ºC
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 183. The chemical formula for Ammonium acctatc is_____________________?
  1.    NH3OAC
  2.    NH4OAC
  3.    NH4AOC
  4.    Both b & c
 Discuss Question
Answer: Option B. -> NH4OAC
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 184. A treeless artic plain is called as___________________?
  1.    Glaciers
  2.    Barren land
  3.    Tundra
  4.    None of the above
 Discuss Question
Answer: Option C. -> Tundra
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 185. Biochemical reduction of nitrate to nitrite or gaseous nitrogen is called ________________________?
  1.    Reduction
  2.    Oxidation
  3.    Denitrification
  4.    None of the above
 Discuss Question
Answer: Option C. -> Denitrification
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 186. Particular matter consists of____________________?
  1.    Solid and gases
  2.    CO2 & N
  3.    Solid and liquid
  4.    None of the above
 Discuss Question
Answer: Option C. -> Solid and liquid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 187. Nitrogen gases are involved in_____________________?
  1.    Sleepy feelings
  2.    Hair disease
  3.    Mental disease
  4.    Acid rains
 Discuss Question
Answer: Option D. -> Acid rains
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 188. While diluting acid always add_____________________?
  1.    Acid to water
  2.    Water to acid
  3.    Both a & b
  4.    none
 Discuss Question
Answer: Option A. -> Acid to water
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 189. The salinity can be reduced by the application of___________________?
  1.    Lime
  2.    Sulphuric acid
  3.    Urea
  4.    All the above
 Discuss Question
Answer: Option A. -> Lime
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 190. Soil moisture and ET losses are_________________?
  1.    Inversely related
  2.    Directly related
  3.    Not related
  4.    Occasionally related
 Discuss Question
Answer: Option B. -> Directly related
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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