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Home ‣ Chemical Engineering ‣ Fertiliser Technology See What Others Are Saying!
  • Question

  • 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.

  • Correct Answer
  • Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens. 

    • More questions

    • 1. Cellulose content in bomboo fibre is about __________ percent.

    • Options
    • A. 10
    • B. 20
    • C. 50
    • D. 85
      • Discuss
    • 2. Gold ore concentration is mostly done using

    • Options
    • A. jigging
    • B. tabling
    • C. froth floatation
    • D. elutriation
      • Discuss
    • 3. Vapor pressure of water at 100°C is about __________ bar.

    • Options
    • A. 0.1013
    • B. 1.013
    • C. 10.13
    • D. 101.3
      • Discuss
    • 4. P2O5 content in triple superphosphate is about __________ percent.

    • Options
    • A. 42-50
    • B. 15-20
    • C. 85-90
    • D. 70-75
      • Discuss
    • 5. For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

    • Options
    • A. decreases upwards.
    • B. increases upwards.
    • C. remains same throughout.
    • D. may decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell.
      • Discuss
    • 6. Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop.

    • Options
    • A. Tank 1
    • B. Tank 2
    • C. Tank 3
    • D. Tank 4
      • Discuss
    • 7. The gas which contributes maximum to the heating value of natural gas is

    • Options
    • A. CO
    • B. CO2
    • C. H2
    • D. CH4
      • Discuss
    • 8. Pick out the wrong unit conversion.

    • Options
    • A. l kgf= 9.8 Newton.
    • B. 1 stoke = 1 m2/second.
    • C. 1 Pascal second = 10 poise.
    • D. 1 ppm = 1 ml/m3 = 1 mg/kg.
      • Discuss
    • 9. Styrene butadiene rubber is commercially manufactured by

    • Options
    • A. bulk polymerisation
    • B. suspension polymerisation
    • C. solution polymerisation
    • D. emulsion polymerisation
      • Discuss
    • 10. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).

    • Options
    • A. 15
    • B. 45
    • C. 65
    • D. 85
      • Discuss

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