Discussion
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- Question
NPK means a __________ fertiliser.
Options- A. mixed
- B. potassic
- C. liquid
- D. solid
- Correct Answer
- mixed
- 1. Pick out the wrong statement.
Options- A. Nitrogen is normally supplied in fertiliser either in ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids.
- B. Calcium present in the fertiliser helps in correcting the soil acidity.
- C. Particle size range of a good grannular fertiliser is 10-15 mesh and it contains less moisture as compared to finely divided powder form of fertiliser.
- D. Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens. Discuss
- 2. Monte catini process is a widely used process for the manufacture of
Options- A. urea
- B. calcium ammonium nitrate
- C. triple superposphate
- D. none of these Discuss
- 3. __________ is required more for leafy crops.
Options- A. Nitrogen
- B. Phosphorous
- C. Potassium
- D. Carbon Discuss
- 4. Reaction of cresylic acid with __________ produces tricresyl phosphate.
Options- A. phosphorous pentoxide
- B. phosphorous oxychloride
- C. ammonium phosphate
- D. calcium phosphate Discuss
- 5. Which of the following does not come under the category of 'micro-nutrient' for plant growth?
Options- A. Chlorine
- B. Iron
- C. Boron
- D. Carbon Discuss
- 6. Ammonia synthesis gas is produced from fuel oil by
Options- A. steam reforming
- B. hydrocracking
- C. partial oxidation
- D. hydrogenation Discuss
- 7. The composition of fresh feed to the high temperature, high pressure urea autoclave is
Options- A. excess liquid ammonia and liquefied CO2.
- B. excess liquid ammonia and compressed CO2 gas.
- C. liquid ammonia and excess compressed CO2.
- D. compressed ammonia gas and excess compressed CO2. Discuss
- 8. P2O5 percentage in the phosphoric acid produced by wet process is about
Options- A. 10
- B. 30
- C. 50
- D. 70 Discuss
- 9. Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
Options- A. adsorption on palladium.
- B. cryogenic operations (low temperature cooling).
- C. absorption (using ethanolamine or pyragalloll solution).
- D. none of these. Discuss
- 10. The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.
Options- A. nitrogenous
- B. phosphatic
- C. potassic
- D. none of these Discuss
Fertiliser Technology problems
Search Results
Correct Answer: Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens.
Correct Answer: urea
Correct Answer: Nitrogen
Correct Answer: phosphorous oxychloride
Correct Answer: Carbon
Correct Answer: partial oxidation
Correct Answer: excess liquid ammonia and compressed CO2 gas.
Correct Answer: 30
Correct Answer: cryogenic operations (low temperature cooling).
Correct Answer: phosphatic
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