Fertiliser Technology Lecture Notes pdf Online Test - Set 02 - ObjectiveBooks

Fertiliser Technology Lecture Notes pdf Online Test - Set 02

Practice Test: Question Set - 02

1. Ammonium nitrate is
    (A) Having about 40% N2
    (B) Not hygroscopic
    (C) Not prone to explosive thermal decomposition
    (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

2. Tricresyl phosphate is chemically represented as
    (A) (CH3 C6 H4)3 PO4
    (B) Ca10(PO4)3F6
    (C) (NH4)2HPO4
    (D) NH4H2PO4

3. Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces
    (A) Ammonium phosphate
    (B) Superphosphate
    (C) Triple superphosphate
    (D) None of these

4. Nitrolime is
    (A) Calcium nitrate
    (B) Calcium ammonium nitrate
    (C) A mixture of nitric acid and lime
    (D) A mixture of ammonium nitrate and calcium nitrate

5. 5-10-5 fertilisers mean that they contain
    (A) 5, 10, 5% respectively of N2, P2O5 and K2O
    (B) Only 5 to 10% active fertiliser constituents
    (C) 5 to 10% filler & carrier of soil conditioners
    (D) None of these

6. Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of
    (A) Comparatively higher pressure drop
    (B) High cost of the high pressure vessel used for the reactor
    (C) Higher pumping cost
    (D) Chances of entrainment and disturbance of catalyst bed

7. Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
    (A) Adsorption on palladium
    (B) Cryogenic operations (low temperature cooling)
    (C) Absorption (using ethanolamine or pyrogallol solution)
    (D) None of these

8. Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process.
    (A) Autocatalytic
    (B) Endothermic
    (C) Exothermic
    (D) Non-catalytic

9. Catalyst used in steam reforming of naphtha is
    (A) Nickel
    (B) Platinum
    (C) Silica gel
    (D) Rhodium

10. An increase in the NH3/CO2 ratio in urea manufacture results in
    (A) Increased degree of conversion of CO2 to urea
    (B) Decreased degree of conversion of NH3 to urea
    (C) Decreased yield of urea
    (D) Decreased specific volume of molten mass

11. Color of nitric acid is light yellow due to the presence of
    (A) NO
    (B) NO2
    (C) N2H5
    (D) NH3

12. Maximum nitrogen percentage is in
    (A) Ammonium sulphate
    (B) Calcium ammonium nitrate
    (C) Urea
    (D) Liquid ammonia

13. Fauser Montecatini converter is used for
    (A) Ammonia synthesis (e.g. at FCI Sindri, India)
    (B) Methanation of CO and CO2
    (C) Shift conversion (i.e. CO to CO2)
    (D) None of these

14. Fertilizer plants get their N2 requirements
    (A) By fractionation of liquefied air
    (B) By dissociating oxides of nitrogen
    (C) From coal gas (coke oven gas)
    (D) From producer gas

15. Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas?
    (A) Water
    (B) Naphtha
    (C) Tar
    (D) Coal/coke oven gas

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