Fertiliser Technology MCQs

Question 1

The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.

Accepted Answer

Phosphatic

Answer

Nitrogenous

Answer

Potassic

Answer

None of these

Question 2

Oxidation of ammonia is

Accepted Answer

Exothermic

Answer

Endothermic

Answer

Non-catalytic

Answer

Autocatalytic

Question 3

Phosphatic fertilisers

Accepted Answer

Accelerate fruit formation in later stages of growth

Answer

Are useful during early stage of the plant growth

Answer

Lessen the effect of excessive nitrogen application

Answer

None of these

Question 4

Phosphorus vapour comprises of

Accepted Answer

P4

Answer

P

Answer

P2

Answer

P3

Question 5

Pick out the wrong statement.

Accepted Answer

Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Answer

Nitrogen is normally supplied in fertiliser either in ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids

Answer

Calcium present in the fertiliser helps in correcting the soil acidity

Answer

Particle size range of a good grannular fertiliser is 10-15 mesh and it contains less moisture as compared to finely divided powder form of fertiliser

Question 6

Plant tranquillisers

Accepted Answer

Hold back stem growth and halt plants at a desired height

Answer

Cause early maturation of plants

Answer

Accelerate ripening of food and grain

Answer

Produce seedless fruit

Question 7

(CH3C6H4)3PO4 is the chemical formula of

Accepted Answer

Tricresyl phosphate

Answer

Triple superphosphate

Answer

Flourapatite

Answer

Superphosphate

Question 8

Potassic fertilisers

Accepted Answer

Help in development of starches of potatoes and grain

Answer

Are useful during early stage of the plant growth

Answer

Stimulate early growth and accelerate seeding

Answer

None of these

Question 9

Monte catini process is a widely used process for the manufacture of

Accepted Answer

Urea

Answer

Calcium ammonium nitrate

Answer

Triple superposphate

Answer

None of these