| 1 |
The nitrogen present to some fertilizers helps plants to |
- A. Fight against diseases
- B. Produce fat
- C. Undergo photosynthesis
- D. Produce protein
|
| 2 |
Setting process of cement is based upon |
- A. Hydrolysis
- B. Hydration
- C. Dehydration
- D. Botha a and b
|
| 3 |
Which one of the following is calcareous material |
- A. Marine shells
- B. clay
- C. Shale
- D. Blast furnace slag
|
| 4 |
Micro nutrients are required in quantity ranging from |
- A. 4 g - 40 g
- B. 6 g -200 g
- C. 6kg - 200 kg
- D. 4 kg - 40 kg
|
| 5 |
Which is not a calcarious material |
- A. Clay
- B. Limestone
- C. Marble
- D. Chalk
|
| 6 |
The composition mixture of clay and lime stone in the raw material. |
- A. 75% lime stone and 25% clay
- B. 25% lime stone and 75% clay
- C. 15% lime stone and 55% clay
- D. 55% lime stone and 15% clay
|
| 7 |
Phosphorus helps in the growth of |
- A. Root
- B. Leave
- C. Stem
- D. Seed
|
| 8 |
Which one of the following raw materials is not present in the cement. |
- A. Lime stone
- B. Gypsum
- C. Blast furnace slag
- D. Red lead
|
| 9 |
One of following is argillaceous material |
- A. Marble
- B. Clay
- C. Lime
- D. Marine Shell
|
| 10 |
Which substance is used ot bleach the pulp. |
- A. Na2SO3
- B. NaCl
- C. NaClO
- D. NaOH
|