| 1 |
How many zones through which the charge passes in a rotary kiln |
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| 2 |
Which woody raw material is used for the manufacture of paper pulp |
- A. Cotton
- B. Biogases
- C. Rice straw
- D. Poplar
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| 3 |
The nitrogen present to some fertilizers helps plants to |
- A. Fight against diseases
- B. Produce fat
- C. Undergo photosynthesis
- D. Produce protein
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| 4 |
The percentage of clay and liem stone in cement is in the ratio of. |
- A. 1 : 1
- B. 1 :2
- C. 1:3
- D. 3:1
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| 5 |
Which one of the following set of raw material is most suitable for manufacture of urea. |
- A. CH4, N2 and CO2
- B. H2, N2 and CO
- C. H2,CO2 and H2O
- D. H2O, N2 and H2
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| 6 |
Potassium fertilizers are especially useful for |
- A. Tobacco
- B. Coffee
- C. Potato
- D. All of these
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| 7 |
The percentage of nitrogen in urea is. |
- A. 36%
- B. 46%
- C. 56%
- D. 65%
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| 8 |
Phosphorus helps the growth of |
- A. Root
- B. Leaf
- C. Steam
- D. Seed
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| 9 |
The macronutrients are required in quantities ranging from |
- A. 4-40 kg per acre
- B. 10-100 kg per acre
- C. 5-100 kg per acre
- D. 5-200 kg per acre
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| 10 |
Which one of the following raw materials is not present in the cement. |
- A. Lime stone
- B. Gypsum
- C. Blast furnace slag
- D. Red lead
|