| 1 |
Natural rubber plant remain productive: |
- A. For 10 years
- B. For 20 years
- C. For 40 years
- D. For 25 years
|
| 2 |
For propagation of rubber plant: |
- A. Equatorial warm-humid climate is suitable
- B. Desert climate is suitable
- C. Monsoon climate is suitable
- D. Sudani climate is suitable
|
| 3 |
Hevea brasiliensis plant provide world's |
- A. 50 percent natural rubber
- B. 90 percent natural rubber
- C. One-third natural rubber
- D. Small amount of natural rubber
|
| 4 |
British explorer Sir Henry Wickham in: |
- A. 1876 A.D smuggled rubber seed in U.K
- B. 1820 A.D smuggled rubber seeds
- C. 1750 A.D smuggled rubber seed in U.K
- D. 1900 A.D smuggled rubber seed
|
| 5 |
For rubber plantation, trees and planted apart: |
- A. One meter
- B. 5 meters
- C. 10 meters
- D. 20 meters
|
| 6 |
In 1839, Charles Goodyear from rubber prepared: |
- A. Tyre and tube
- B. Vulcanized rubber
- C. Erasing rubber
- D. Rubber goods
|
| 7 |
Hevea brasiliensis plant provide world's: |
- A. 50 percent natural rubber
- B. 95 percent natural rubber
- C. One-third percent natural rubber
- D. Small amount of natural rubber
|
| 8 |
In one hectare, how many rubber plants can be planted ? |
- A. 250 plants
- B. 100plants
- C. 500plants
- D. 1000plants
|
| 9 |
In one year, for how many days, rubber plant producer rubber ? |
- A. 100 days
- B. 50 days
- C. 200-300 days
- D. throughout the year
|
| 10 |
Annual rubber production of the world is about: |
- A. More than 100 million tons
- B. 11.966 million metric tons
- C. 50million metric tons
- D. 200million metric tons
|
