| 1 |
At present, world's 80 percent natural rubber is produced in: |
- A. South-east Asia
- B. Sri Lanka
- C. Brazil
- D. African countries
|
| 2 |
In 1839 A.D., Charles Goodyear from rubber prepared: |
- A. Tyre and tube
- B. Vulcanized rubber
- C. Erasing rubber
- D. Rubber goods
|
| 3 |
In 1823, Charles Macintosh established a rubber plant: |
- A. For manufactured water-proof cloth
- B. For manufactured tyre & tube
- C. For manufactured rubber balls
- D. For manufactured rubber goods
|
| 4 |
When did natural rubber production started in Sri Lanka (Ceylon)? |
- A. 1900 A.D
- B. 1850A.D
- C. 1880A.D
- D. 1857A.D
|
| 5 |
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
|
| 6 |
Native country of Hevea brasiliensis plant is: |
- A. Nigeria
- B. Congo
- C. Brazil
- D. Zambia
|
| 7 |
At present, world's 91.5% percent natural rubber produces in: |
- A. South-east Asia
- B. Sri Lanka
- C. Brazil
- D. African countries
|
| 8 |
Hevea brasiliensis's smuggled rubber seeds from Brazil were propagated in London's: |
- A. Kew Gardens
- B. LawrenceGardens
- C. WahGardens
- D. MayoGardens
|
| 9 |
U.S.A consume world's: |
- A. 50 percent natural rubber
- B. 25percent natural rubber
- C. 70percent natural rubber
- D. 80percent natural rubber
|
| 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
|
