| 1 |
Setting process of cement is based upon |
- A. Hydrolysis
- B. Hydration
- C. Dehydration
- D. Botha a and b
|
| 2 |
Micronutrients are required in quantity ranging from |
- A. 4g-40g
- B. 6g-200g
- C. 6kg-200kg
- D. 4kg-40kg
|
| 3 |
Cement is a mixture of |
- A. Clay and clinker
- B. Clay, lime stone and gypsum
- C. Lime stone and gypsum
- D. Lime stone and clay
|
| 4 |
Ammonium Nitrate fertilizer is not useful for |
- A. Wheat
- B. Cotton
- C. Sugan cane
- D. Paddyrice
|
| 5 |
Ammonium nitrate fertilizers is not used for which crop |
- A. Cotton
- B. Wheat
- C. Sugar cane
- D. Paddy rice
|
| 6 |
Micronutrients for plant are those which |
- A. Are required in very large amount
- B. Are required in very small amount
- C. Are produced from plants in very small amount
- D. Retard the growth of plants
|
| 7 |
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
|
| 8 |
What is clinker |
- A. Roasted calcareous material
- B. Roasted argillaceous material
- C. Roasted calcareous and argillaceous material
- D. Roasted gyposum
|
| 9 |
In Pakistan pulp is usually bleached with Cl2. The residual chlorine is removed from pulp by an antichlor which is |
- A. dil HCl
- B. dil NaOH
- C. Water
- D. NaCl
|
| 10 |
Prilling is a process in which |
- A. Concentration of urea is increased
- B. Water is removed from urea
- C. Molten urea is converted to solid drop
- D. Some other ingredients are added to urea
|