| 1 |
During the manufacturing process of cement the temperature of the decomposition zone goes up to. |
- A. 600 <sup>o</sup>C
- B. 900 <sup>o</sup>C
- C. 1000 <sup>o</sup>C
- D. 1200 <sup>o</sup>C
|
| 2 |
The percentage of clay and liem stone in cement is in the ratio of. |
- A. 1 : 1
- B. 1 :2
- C. 1:3
- D. 3:1
|
| 3 |
Which three elements are needed for the healthy growth of plants. |
- A. N,S,P
- B. N, Ca, P
- C. N,P,K
- D. N,K,C
|
| 4 |
Potassium fertilizers are especially useful for |
- A. Tobacco
- B. Coffee
- C. Potato
- D. All of these
|
| 5 |
Which is not a calcarious material. |
- A. Lime
- B. Clay
- C. Marble
- D. Marine shell
|
| 6 |
Which three elements are needed for the healthy growth of plants |
- A. N,S,P
- B. N,Ca,P
- C. N,P,K
- D. N,K,C
|
| 7 |
The nitrogen present in some fertilizers helps plants |
- A. to fight against diseases
- B. to produce fat
- C. to undergo photosynthesis
- D. to produce protien
|
| 8 |
Which is not a calcarious material |
- A. Clay
- B. Limestone
- C. Marble
- D. Chalk
|
| 9 |
Conversion of ammonium carbamate into urea is |
- A. Hydrolysis
- B. Hydrogenation
- C. Hydration
- D. Dehydration
|
| 10 |
Usually the percentage of moisture is paper is |
- A. 1- 3%
- B. 4-6%
- C. 6-8%
- D. 5%
|