The percentage of nitrogen in urea is________________?
A. 36%
B. 46%
C. 56%
D. 66%
Submitted by :- Jamil Ahmed
The sequence of zones in the rotary kiln are as____________________?
A. dry zone burning zone decomposition zone cooling zone
B. cooling zone burning zone decomposition zone dry zone
C. burning zone cooling zone decomposition zone
D. dry zone decomposition zone burning zone cooling zone
Submitted by :- Jamil Ahmed
Which one of the following raw material is not present in the cement ?
A. lime stone
B. gypsum
C. KNO3
D. iron oxide
Submitted by :- Jamil Ahmed
Phosphorus helps in the growth of_________________?
A. root
B. leave
C. stem
D. seed
Submitted by :- Jamil Ahmed
What is clinker ?
A. roasted calcareous material
B. roasted argillaceous material
C. roasted calcareous and argillaceous material
D. roasted gypsum
Submitted by :- Jamil Ahmed
The potassium present in plant help the plant to___________________?
A. form starch sugar and fibrous material
B. ripen the seeds and fruits
C. increase the resistance against disease
D. all the above statements are correct
Submitted by :- Jamil Ahmed
Which one of the following is an inorganic fertilizer ?
A. manure
B. urea
C. ammonium nitrate
D. All
Submitted by :- Jamil Ahmed
The nutrients which are required in very small amount for the normal growth of plants are called_________________?
A. nitrogenous fertilizers
B. micronutrients
C. phosphorus fertilizer
D. all of the above
Submitted by :- Jamil Ahmed
Argillaceous material does not include________________?
A. Clay
B. marine shells
C. slate
D. blast furnace slag
Submitted by :- Jamil Ahmed
Which of the following will have very high rate of reaction ?
A. Double decomposition reaction
B. Neutralization reaction
C. Ionic reactions
D. all of above
Submitted by :- Jamil Ahmed