Fertiliser Coating Technology MCQ Test - Set 04 - ObjectiveBooks

Fertiliser Coating Technology MCQ Test - Set 04

Practice Test: Question Set - 04

1. Temperature and pressure in urea autoclave is
    (A) 120°C and 300 atm
    (B) 190°C and 200 atm
    (C) 400°C and 550 atm
    (D) 200°C and 10 atm

2. Phosphorus vapour comprises of
    (A) P
    (B) P2
    (C) P3
    (D) P4

3. Coal based fertilizer plants at Ramagundam (Andhra Pradesh) and Talcher (Orissa)
    (A) Use coal for heating purpose
    (B) Gasify coal to get hydrogen from coal gas
    (C) Use coal as filler in fertilizer
    (D) Use coal as conditioner in fertilizer

4. Reaction of Cresylic acid with __________ produces Tricresyl phosphate.
    (A) Phosphorous pentoxide
    (B) Phosphorous oxychloride
    (C) Ammonium phosphate
    (D) Calcium phosphate

5. During conversion of ammonium carbamate into urea, presence of large excess of water
    (A) Increases the yield of urea
    (B) Adversely affects the yield of urea
    (C) Reduces the evaporator load by diluting the urea solution
    (D) Does not affect the yield of urea

6. Commercial production of hydrogen for the manufacture of nitrogenous fertilizers is done by
    (A) Steam reforming of naphtha and cracking of natural gas
    (B) Electrolysis of water
    (C) Cryogenic separation of hydrogen from coke oven gas
    (D) All (a), (b) and (c)

7. Excessive use of chemical fertilizers causes shrivelling of the roots and wilting of the plant, because the
    (A) Osmotic pressure of the soil water becomes less than that of the plant sap
    (B) Soil becomes too alkaline
    (C) Osmotic pressure of the soil water becomes higher than that of the plant sap
    (D) Soil becomes too acidic

8. Liquid ammonia is not used as such a fertilizer in tropical countries like India, because
    (A) Its N2 content is very low
    (B) It is very costly
    (C) It will evaporate on spraying
    (D) It is not available

9. The essential ingredient of all the synthesis gas is
    (A) H2
    (B) O2
    (C) CO2
    (D) N2

10. Low grade phosphate rock can be used in electrical furnace, because
    (A) Of the better CaO/SiO2 balance for slag formation
    (B) CaO content is less
    (C) It is cheap
    (D) It produces low cost product

11. CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in
    (A) Mono-ethanolamine (MEA)
    (B) Slaked lime
    (C) Ammoniacal liquor
    (D) Methyl-Ethyl Ketone (MEK)

12. Naphtha in a fertilizer plant is used as a source of
    (A) Fuel
    (B) H2
    (C) N2
    (D) O2

13. P2O5 percentage in the phosphoric acid produced by wet process is about
    (A) 10
    (B) 30
    (C) 50
    (D) 70

14. Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.
    (A) Stabilization
    (B) Increasing the effectiveness
    (C) Improving the strength & heat resistance
    (D) All a, b & c

15. The fertilizer plant getting hydrogen by electrolysis of water is situated at (INDIA):
    (A) Namrup
    (B) Nangal
    (C) Rourkela
    (D) Korba

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