| 1 |
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
|
| 2 |
Per rubber plant, annual rubber production is about: |
- A. 20 pounds
- B. 4-5 pounds
- C. 50 pounds
- D. Very small amount
|
| 3 |
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
|
| 4 |
From experimental rubber plantation of on hectare: |
- A. 3,335 kg rubber production is possible
- B. 1000kg rubber production is possible
- C. 500kg rubber production is possible
- D. 5000kg rubber production is possible
|
| 5 |
In 1839 A.D., Charles Goodyear from rubber prepared: |
- A. Tyre and tube
- B. Vulcanized rubber
- C. Erasing rubber
- D. Rubber goods
|
| 6 |
For best vegetative growth of natural rubber plant: |
- A. There is not any need of rainfall
- B. Small amount of rainfall is enough
- C. 70-100 inches rainfall is needed
- D. Only 30 inches rain-fall is enough
|
| 7 |
In the world, largest producer of rubber is: |
- A. Thailand
- B. Indonesia
- C. Malaysia
- D. India
|
| 8 |
At present, world's 80 percent natural rubber is produced in: |
- A. South-east Asia
- B. Sri Lanka
- C. Brazil
- D. African countries
|
| 9 |
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
|
| 10 |
For best propagation of natural rubber plant: |
- A. 80<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F(27<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>C) temperature is best suitable
- B. 100<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F temperature is suitable
- C. 50<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F temperature is suitable
- D. 32<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F temperature is suitable
|
