| 1 |
The raw materials for the manufacturing of urea are. |
- A. Ammonia
- B. Carbondioxide
- C. Limestone
- D. a & b
|
| 2 |
Chalco-pyite is an ore of: |
- A. iron
- B. aluminium
- C. silver
- D. copper
|
| 3 |
Which one of the following is not faction of crude oil. |
- A. Paraffin wax
- B. Asphalt
- C. Fuel oil
- D. Petroleum coke
|
| 4 |
Concentration of copper are is carried out by process. |
- A. Roasting
- B. Forth floatation
- C. Gravity sepration
- D. Electrostatic separation
|
| 5 |
Sodium carbonate is manufactured by. |
- A. Haber's process
- B. Ostwald's process
- C. Solvay's process
- D. All
|
| 6 |
The impurities associated with the minerals are known as: |
- A. Metallurgy
- B. Ores
- C. Gangue
- D. Compounds
|
| 7 |
How many % age of urea is used as fertilizers? |
- A. 80%
- B. 90%
- C. 95%
- D. 98%
|
| 8 |
Froth flotation process is used to concentrate. |
- A. Copper ore
- B. Iron ore
- C. Chromium ore
- D. Aluminum ore
|
| 9 |
Which one of the following is used as jet fuel. |
- A. Kerosene oil
- B. Lubricating oil
- C. Fuel oil
- D. Diesel oil
|
| 10 |
How many % age of nitrogen present in air by volume? |
- A. 70%
- B. 75%
- C. 78%
- D. 80%
|