A. lime stone
B. gypsum
C. KNO3
D. iron oxide
Related Mcqs:
- 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 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 - Which of the following processes is used for the synthesis of cement ?
A. dry process
B. wet process
C. both
D. none - 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 - 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) - Which sequence of steps is correct for the manufacture of cement ?
A. crushing heating mixing grinding
B. crushing mixing heating grinding and mixing
C. crushing grinding mixing heating
D. mixing heating grinding crushing - The percentage of suspended solid waste in raw water is removed by coagulation is__________________?
A. 60
B. 70
C. 80
D. 90 - Which of the following properties prove that cathode rays are material in nature_________________?
A. they cast shadow
B. they possess momentum
C. they are negatively charged
D. all of the above - Which one of the following acids is present in lemon juice ?
A. Citric acid
B. Benzoic acid
C. Tartaric acid
D. Oxalic acid - Which of the following noble gases is not present in atmosphere?
A. Argon
B. Helium
C. Radon
D. XenonSubmitted by: Malik Asghar Hussain
