Fertiliser Technology MCQs

Question 1

Ammonia synthesis gas is produced from fuel oil by

Accepted Answer

Partial oxidation

Answer

Steam reforming

Answer

Hydrocracking

Answer

Hydrogenation

Question 2

Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C.

Accepted Answer

1400-1450

Answer

250-300

Answer

500-750

Answer

950-1050

Question 3

Ammonia synthesis gas is produced from natural gas by

Accepted Answer

Steam reforming

Answer

Thermal cracking

Answer

Partial oxidation

Answer

Hydrogenation

Question 4

Nitric acid is produced on commercial scale in a fertiliser plant by

Accepted Answer

Oxidation of ammonia

Answer

CaNO3 + H2SO4 reaction

Answer

Passing air through high voltage electric arc

Answer

None of these

Question 5

Potassic fertiliser is graded based on its __________ content.

Accepted Answer

K2O

Answer

KCl

Answer

KNO3

Answer

K2SO4

Question 6

Phosphatic fertiliser is graded based on its __________ content.

Accepted Answer

P2O5

Answer

P2O3

Answer

PCl5

Answer

H3PO4

Question 7

During conversion of ammonium carbamate into urea, presence of large excess of water

Accepted Answer

Adversely affects the yield of urea

Answer

Increases the yield of urea

Answer

Reduces the evaporator load by diluting the urea solution

Answer

Does not affect the yield of urea

Question 8

Which of the following fertilisers is used as a cattle feed?

Accepted Answer

Urea

Answer

Calcium ammonium nitrate

Answer

Superphosphate

Answer

Ammonium sulphate

Question 9

Rock phosphate used for the production of phosphatic fertiliser is mined at

Accepted Answer

Amjhor (Jharkhand)

Answer

Talchar (Orissa)

Answer

Bailladella (M.P.)

Answer

Kiriburu (Bihar)