| 1 |
Pulp is washed to remove lignin from it. Due to the presence of lignin in pulp paper becomes. |
- A. Soft
- B. Brittle
- C. Acidic
- D. Colourless
|
| 2 |
Which one of the following is calcareous material |
- A. Marine shells
- B. clay
- C. Shale
- D. Blast furnace slag
|
| 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 |
Which is not a calcarious material |
- A. Clay
- B. Limestone
- C. Marble
- D. Chalk
|
| 5 |
Phosphorus helps in the growth of |
- A. Root
- B. Leave
- C. Stem
- D. Seed
|
| 6 |
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
|
| 7 |
Woody raw material for paper pulp is obtained from |
- A. Cotton
- B. Bagasse
- C. Poplar
- D. Rice straw
|
| 8 |
Which elements are needed for healthy growth of plants |
- A. N,S,P
- B. N,Ca,P
- C. N,P,K
- D. N,K,C
|
| 9 |
During the manufacturing process of cement the temperature of the decomposition zone goes up to |
- A. 600<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">°C</b>
- B. 800<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">°C</b>
- C. 1000<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">°C</b>
- D. 1200<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">°C</b>
|
| 10 |
During pulp making, the pH of digester is maintained at. |
- A. 1-2
- B. 3-5
- C. 6-8
- D. 7-9
|
