Which sequence of steps is correct for the manufacture of cement ?

Related Mcqs:

1. Which one of the following is the correct sequence according to atomic weights?

   A. Fe>Co> Ni
   B. Co > Ni > Fe
   C. Ni> Co> Fe
   D. Co >Fe>Ni

   Submitted by: Muhammad Ali Kunbhar

2. The major steps involved in complete quantitative analysis are _________________?

   A. 2
   B. 3
   C. 4
   D. 5

3. When the reaction completes in more than one steps rate of reaction will be determined by________________?

   A. Fast step
   B. Slowest step
   C. All steps
   D. Molecularity of the reaction

4. Which of the following processes is used for the synthesis of cement ?

   A. dry process
   B. wet process
   C. both
   D. none

5. 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

6. 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)

7. 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

8. Which one of the following raw material is not present in the cement ?

   A. lime stone
   B. gypsum
   C. KNO3
   D. iron oxide

9. The sequence of zones in the rotary kiln are as____________________?

   A. dry zone burning zone decomposition zone cooling zone
   B. cooling zone burning zone decomposition zone dry zone
   C. burning zone cooling zone decomposition zone
   D. dry zone decomposition zone burning zone cooling zone

10. 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