1 |
Cement is a mixture of |
Clay and clinker
Clay, lime stone and gypsum
Lime stone and gypsum
Lime stone and clay
|
2 |
Conversion of ammonium carbamate into urea is |
Hydrolysis
Hydrogenation
Hydration
Dehydration
|
3 |
Potassium fertilizers are especially useful for |
Tobacco
Coffee
Potato
All of these
|
4 |
Prilling is a process in which |
Concentration of urea is increased
Water is removed from urea
Molten urea is converted to solid drop
Some other ingredients are added to urea
|
5 |
the percentage of nitrogen in NH3 is |
46%
60%
82%
100%
|
6 |
The macro nutrients are required in ranging from |
5 kg to 200 kg
5 kg to 200 g
6g to 200 g
1 kg to 100 kg
|
7 |
Which one of the following is inorganic fertilizer. |
Manure
Urea
Ammonium nitrate
All of these
|
8 |
The percentage of nitrogen in urea is. |
36%
46%
56%
65%
|
9 |
Ammonia is prepared industrially by |
Contact process
Ostwald process
Birkland Eyed process
Heber process
|
10 |
Which one of the following set of raw material is most suitable for manufacture of urea. |
CH4, N2 and CO2
H2, N2 and CO
H2,CO2 and H2O
H2O, N2 and H2
|
11 |
Micronutrients for plant are those which |
Are required in very large amount
Are required in very small amount
Are produced from plants in very small amount
Retard the growth of plants
|
12 |
Which one of the following is the macronutrient for plants. |
Boron
Zinc
Calcium
Nitrogen
|
13 |
Ammonium nitrate fertilizers is not used for which crop |
Cotton
Wheat
Sugar cane
Paddy rice
|
14 |
Which is not a calcarious material. |
Lime
Clay
Marble
Marine shell
|
15 |
The word paper is derived from the name of which reed plant. |
Rose
Sun flower
Papyrus
Water Hyacinth
|
16 |
During the manufacturing process of cement the temperature of the decomposition zone goes up to. |
600 <sup>o</sup>C
900 <sup>o</sup>C
1000 <sup>o</sup>C
1200 <sup>o</sup>C
|
17 |
Micro nutrients are required in quantity ranging from |
4 g - 40 g
6 g -200 g
6kg - 200 kg
4 kg - 40 kg
|