A. roasted calcareous material
B. roasted argillaceous material
C. roasted calcareous and argillaceous material
D. roasted gypsum
Related Mcqs:
- The fertility of the soil is improved by________________?
A. Rotation of the crops
B. Adding lime to the acid salts
C. Adding manure and growing legumes
D. All - The fertilizers which provide single nutrient from NPK are called ___________ fertilizer?
A. straight
B. compound
C. both a and b
D. none of the above - Which of the following processes is used for the synthesis of cement ?
A. dry process
B. wet process
C. both
D. none - How many zones through which the charge passes in a rotary kiln ?
A. 4
B. 3
C. 2
D. 5 - Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?
A. Lime (CaO)
B. Silica (SiO2)
C. Alumina (Al2O3)
D. Magnesia (MgO) - The composition of mixture of clay and lime stone in the raw for cement material is __________________?
A. 75% lime stone and 25% clay
B. 25% lime stone and 75% clay
C. 15% lime stone and 55% clay
D. 55% lime stone and 15% clay - Which of the following fertilizers is not useful for paddy rice ?
A. urea
B. DAP
C. Ammonium sulphate
D. Ammonium nitrate - Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?
A. KCI
B. KNO3
C. K2SO4
D. KMnO4 - Which one of the following is an inorganic fertilizer ?
A. manure
B. urea
C. ammonium nitrate
D. All - The potassium present in plant help the plant to___________________?
A. form starch sugar and fibrous material
B. ripen the seeds and fruits
C. increase the resistance against disease
D. all the above statements are correct
