| 1 |
Coal, petroleum, natural gas, nuclear energy and solar energy are: |
- A. Important means of energy
- B. Not means of energy
- C. Nominal means of energy
- D. Unimportant means of energy
|
| 2 |
Quality of coal depends upon: |
- A. Carbon content of coal
- B. Hydrogen content of coal
- C. sulphur content of coal
- D. Silicon content of coal
|
| 3 |
World's 28 percent reserves of coal are in the continent of: |
- A. North America
- B. Europe
- C. Australia
- D. South America
|
| 4 |
In the earth's crust, coal formation began during carboniferous period which spanned: |
- A. 360 to 290 million years before present
- B. 500 million years before present
- C. 100 million before present
- D. 50 million years before present
|
| 5 |
In tropical region, coal reserves are: |
- A. Very large
- B. Very very large
- C. Enough large
- D. Very small
|
| 6 |
World's percent coal reserves are present in the continent of: |
- A. Africa
- B. Asia
- C. Europe
- D. Australia
|
| 7 |
In lignite coal, carbon content may be: |
- A. Only 10 percent
- B. 45 - 65percent
- C. Up to 25percent
- D. Up to 90percent
|
| 8 |
In peat coal, carbon content may be: |
- A. Up to 20 percent
- B. Up to 30 percent
- C. Up to 80 percent
- D. Up to 70 percent
|
| 9 |
In 18th century, due to use of petroleum and natural gas: |
- A. Demand of coal became less
- B. No change took place in use of coal
- C. Coal demand increased
- D. Coal mining was almost stopped
|
| 10 |
World's largest producer of coal is: |
- A. China
- B. Canada
- C. United Kingdom
- D. United States of America
|
