| 1 |
In the beginning Natural rubber plant was discovered: |
- A. In the Amazon river basin
- B. In the Ganges river basin
- C. In the Mississippi river basin
- D. In the Congo river basin
|
| 2 |
When did regular rubber export started from South America-Brazil ? |
- A. 1750 A.D
- B. 1852 A.D
- C. 1857 A.D
- D. 1900 A.D
|
| 3 |
The continent of Africa produces world's: |
- A. 6 percent rubber
- B. 20percent rubber
- C. 50percent rubber
- D. 10percent rubber
|
| 4 |
Natural rubber plant remain productive: |
- A. For 10 years
- B. For 20 years
- C. For 40 years
- D. For 25 years
|
| 5 |
For rubber plant plantation, which soil is most suitable ? |
- A. Marshy land
- B. Sandy soil
- C. Clayey soil
- D. Red oil with excessive phosphorus & humus
|
| 6 |
For rubber plantation, trees and planted apart: |
- A. One meter
- B. 5 meters
- C. 10 meters
- D. 20 meters
|
| 7 |
Native country of Hevea brasiliensis plant is: |
- A. Nigeria
- B. Congo
- C. Brazil
- D. Zambia
|
| 8 |
When did regular rubber export started from South America-Brazil? |
- A. 1750 A.D
- B. 1852 A.D
- C. 1857 A.D
- D. 1900 A.D
|
| 9 |
At present, world's 80 percent natural rubber is produced in: |
- A. South-east Asia
- B. Sri Lanka
- C. Brazil
- D. African countries
|
| 10 |
For rubber plant plantation, which soil is most suitable? |
- A. Marshy land
- B. Sandy soil
- C. Clayey soil
- D. Red soil with excessive phosphorus & humus
|
