Chemical engineering Fertilizer Technology Questions - Set 12 - ObjectiveBooks

Chemical engineering Fertilizer Technology Questions - Set 12

Practice Test: Question Set - 12


1. Pick out the wrong statement.
    (A) Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty
    (B) Large excess use of nitrogenous fertilizer in land causes the problem of diarrhoea and cyanosis
    (C) Application of large excess of Potassic fertilizer in soil increases the valuable carotene in fruits and vegetables
    (D) Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis

2. Hydrogen content of coke oven gas is __________ percent.
    (A) 4
    (B) 22
    (C) 58
    (D) 84

3. Gas based fertilizer plants use
    (A) Natural gas as a source of hydrogen
    (B) Natural gas as heating medium
    (C) Coal gas as a source of hydrogen
    (D) Coal gas as heating medium

4. Which of the following fertilizers is used as a cattle feed?
    (A) Urea
    (B) Calcium ammonium nitrate
    (C) Superphosphate
    (D) Ammonium sulphate

5. Main constituent of phosphate rock is
    (A) Ammonium phosphate
    (B) Flour apatite
    (C) Calcium fluoride
    (D) Calcium phosphate

6. Which of the following does not come under the category of 'secondary nutrient' for plant growth?
    (A) Calcium
    (B) Magnesium
    (C) Sulphur
    (D) Oxygen

7. Low grade coal is ________ to produce ammonia synthesis gas.
    (A) Hydrogenated
    (B) Liquefied
    (C) Gasified
    (D) Dehydrogenated

8. Which of the following set of conditions is favorable for the maximum yield of ammonia by Haber's process?
    (A) High pressure, low reactants concentration, high temperature
    (B) High pressure, low reactants concentration, low temperature
    (C) High pressure, high reactants concentration, low temperature
    (D) Low pressure, high reactants concentration, low temperature

9. Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
    (A) Exothermic
    (B) Endothermic
    (C) Autocatalytic
    (D) None of these

10. Steam reforming of naphtha is a source of hydrogen production for nitrogenous fertilizer industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
    (A) 1.5 : 1
    (B) 3.5 : 1
    (C) 10 : 1
    (D) 15 : 1

11. Catalyst used in steam reforming of naphtha is
    (A) Bauxite
    (B) Cobalt
    (C) Nickel oxide on alumina support
    (D) Chromium

12. Catalyst used in desulphurisation of naphtha is
    (A) Co-Mo
    (B) Pt-Rh
    (C) Silica gel
    (D) Nickel

13. Heating a mixture of phosphate rock, coke and sand in an electric furnace produces
    (A) Phosphoric acid
    (B) Ammonium phosphate
    (C) Phosphorous
    (D) Superphosphate

14. In calcium ammonium nitrate (CAN) fertilizer
    (A) Nitrate nitrogen is quick acting
    (B) Ammoniacal nitrogen is quick acting
    (C) Nitrate nitrogen is slower acting
    (D) None of these

15. Nitro-phosphate (manufactured at Trombay-India) is a __________ fertilizer.
    (A) Mixed
    (B) Complex
    (C) Highly hygroscopic
    (D) Highly explosive

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