A. 36%
B. 46%
C. 56%
D. 66%
0
Which one of the following set of raw material is most suitable for manufacture of urea ?
0
How many zones through which the charge passes in a rotary kiln ?
A. CH4 N2 and CO2
B. H2 N2 and CO
C. H2 CO2 and H2O
D. H2O N2 and H2
0
Which of the following processes is used for the synthesis of cement ?
A. 4
B. 3
C. 2
D. 5
0
Calcarious material includes_________________?
A. dry process
B. wet process
C. both
D. none
0
DAP (Diammonium hydrogen phosphate) contains ______________ plant nutrients?
A. lime stone
B. marble
C. chalk
D. all of the above
0
The cooling of molten urea by air in the tower is called______________________?
A. 60%
B. 65%
C. 70%
D. 75%
0
Addition of urea to the soil is ____________ reaction?
A. prilling
B. evaporation
C. condensation
D. crystallization
0
The fertilizers which provide single nutrient from NPK are called ___________ fertilizer?
A. endothermic
B. exothermic
C. both a and b
D. no heat energy is involved
0
The fertility of the soil is improved by________________?
A. straight
B. compound
C. both a and b
D. none of the above
0
A. Rotation of the crops
B. Adding lime to the acid salts
C. Adding manure and growing legumes
D. All
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