1 |
For best vegetative growth of natural rubber plant: |
There is not any need of rainfall
Small amount of rainfall is enough
70-100 inches rainfall is needed
Only 30 inches rain-fall is enough
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2 |
For best propagation of natural rubber plant: |
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
100<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F temperature is suitable
50<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F temperature is suitable
32<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>F temperature is suitable
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3 |
For propagation of rubber plant: |
Equatorial warm-humid climate is suitable
Desert climate is suitable
Monsoon climate is suitable
Sudani climate is suitable
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4 |
Most of the natural rubber production in the world is being used: |
For manufacturing water proof cloth
For manufacturing tyre & tube
For manufacturing toys
For manufacturing utensils
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5 |
Natural rubber's plant matures for rubber production: |
At the age of 5 years
At the age of 10 years
At the age of 3 years
At the age of 15 years
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6 |
At present, world's 80 percent natural rubber is produced in: |
South-east Asia
Sri Lanka
Brazil
African countries
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7 |
At present, Brazil produce world's only: |
10 percent rubber
20 percent rubber
One percent rubber
30 percent rubber
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8 |
From Malaysia, first time rubber export started in: |
1870 A.D
1905 A.D
1900 A.D
1920 A.D
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9 |
At first British established rubber plantations in: |
Ceylon (Sri Lanka)
Maldives
Indaman Islands
Malaysia
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10 |
Hevea brasiliensis's smuggled rubber seeds from Brazil were propagated in London' s: |
Kew Gardens
Lawrence Gardens
Wah Gardends
Mayo Gardens
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11 |
British explorer Sir Henry Wickham in: |
1876 A.D smuggled rubber seed in U.K
1820 A.D smuggled rubber seeds
1750 A.D smuggled rubber seed in U.K
1900 A.D smuggled rubber seed
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12 |
When did regular rubber export started from South America-Brazil? |
1750 A.D
1852 A.D
1857 A.D
1900 A.D
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13 |
In 1823, Charles Macintosh established a rubber plant: |
For manufactured water-proof cloth
For manufactured tyre & tube
For manufactured rubber balls
For manufactured rubber goods
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14 |
In 1839, Charles Goodyear from rubber prepared: |
Tyre and tube
Vulcanized rubber
Erasing rubber
Rubber goods
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15 |
Native country of Hevea brasiliensis plant is: |
Nigeria
Congo
Brazil
Zambia
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