Fertilizer Technology Mcqs
This set of Mechanical Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Fertilizer Technology ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Chemical Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Fertilizer Technology comprehensively.
2. Phosphatic fertilizer is required
During early stages of plant growth to promote development of stems and leaves
To stimulate early growth and accelerate seeding or fruit formation in later stages of growth
For the development of the starches of potatoes and grains
For the development of the sugar of fruits and vegetables and the fibrous material of plants
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3. Potassic fertilizer is required
For the development of the starches of potatoes and grains
For the development of the sugar of fruits and vegetables
For the development of the fibrous material of plants
All of these answers
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4. Excessive application of synthetic fertilizers often causes shrivelling of the roots and wilting of the plant. This is because
The soil becomes too acidic
The soil becomes too alkaline
The osmotic pressure of the soil water becomes higher than that of the plant sap
The osmotic pressure of the soil water becomes less than that of the plant sap
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5. Fertilizer value of a nitrogenous fertilizer is expressed in terms of its
N content
NH3 content
HNO3 content
NO content
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6. Phosphatic fertilizer is graded based on its
P2O5 content
P content
PCI3 content
H3PO4 content
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7. Potassic fertilizer is graded based on its
K2O content
KOH content
KNO3 content
K content
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8. Mixed fertilizers contain three principal elements (nitrogen phosphorus and potassium). 5-10-5 mixed fertilizer contains
5 wt. % P2O5 10%N 5% K2O
5 wt. % N 10% P2O5 5% K2O
5 wt. % N 10% P2O5 85% K2O
10 wt. % N 10% P2O5 5% K2O
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9. NPK fertilizer is a
Nitrogenous fertilizer
Phosphatic fertilizer
Potassic fertilizer
Mixed fertilizer
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10. The nitrogenous fertilizer with highest percentage of nitrogen is
Urea
Ammonium sulphate
Ammonium nitrate
Calcium nitrate
11. Which one of the following substances is used as a nitrogenous fertilizer as a weed killer in the onion fields and for correcting acidic soils?
Urea
Basic slag
Superphosphate of lime
Calcium cyanamide
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12. The best fertilizer for rice paddies is
Urea
Ammonium sulphate
Superphosphate
Calcium ammonium nitrate
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13. Which one of the following compounds is not used as fertilizer?
Urea
Dismmonium phosphate
Ammonium nitrate
Calcium phosphate
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14. In the Habers process for the manufacture of ammonia
Finely divided iron is used as a catalyst
Finely divided molybdenum is used as a catalyst
Finely divided nickel is used as a catalyst
No catalyst is required
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15. If a mixture containing 3 moles of hydrogen and 1 mole of nitrogen is converted completely in ammonia the ration of initial and final volumes at the same temperature and pressure would be
Three : one
Two : one
One : three
One : two
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