Fertilizer Technology MCQs

186 MCQs  — Chemical Engineering MCQs  (Page 13 of 19)

Attempt Fertilizer Technology Quiz
Which nutrient in fertiliser makes the plant stems stronger and increases branching ?
A. Nitrogen
B. Phosphorous
C. Potassium
D. Calcium
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Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in__________________?
A. Low bulk density product
B. Biuret formation
C. Non-spherical prills
D. Substantially wet non-flowing and sticky product
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A Potassic fertiliser contains 50% K2O. It could be _________________?
A. Potassium sulphate
B. Potassium chloride
C. A mixture of nacl + kcl
D. None of these
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_____________ is the undesirable by-product produced in the manufacture of urea ?
A. Ammonium carbonate
B. Biuret
C. Carbon dioxide
D. Ammonium carbamate
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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
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Coal based fertiliser 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 fertiliser
D. Use coal as conditioner in fertiliser
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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
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Excessive use of chemical fertilisers 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
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The essential ingredient of all the synthesis gas is___________________?
A. H2
B. O2
C. Co2
D. N2
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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)
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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