________________ is the major constituent of the Portland cement?

Related Mcqs:

1. Portland cement consists mainly of__________________?

   A. CaO & SiO2
   B. SiO2 & Al2O3
   C. CaO & Al2O3
   D. CaO & Fe2O3

2. Main constituents of Portland cement are calcium aluminate and__________________?

   A. Gypsum
   B. Silicates
   C. Sodium silicate
   D. Carbonates

3. The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?

   A. 800
   B. 1600
   C. 4000
   D. 8500

4. Which of the following is the second major component of cement ?

   A. Al2O3
   B. SiO2
   C. CaO
   D. Fe2O3

5. Fusion of bauxite and ________________ produces high alumina cement?

   A. Alum
   B. Limestone
   C. Coke
   D. Quartz

6. Raw materials used for producing ________________ cement does not contain iron oxide?

   A. Waterproof
   B. Slag
   C. White
   D. Pozzolan

7. The major constituent of black liquor generated during paper manufacture is sodium___________________?

   A. Sulphate
   B. Carbonate
   C. Hydroxide
   D. Bi-carbonate

8. ________________ acid is the main constituent of cotton seed oil ?

   A. Acetic
   B. Linoleic
   C. Palmitic
   D. Oleic

9. Fusion of limestone and ______________ produces high alumina cement?

   A. Sand
   B. Bauxite
   C. Quicklime
   D. Calcite

10. Cement setting under water employs a/an _______________ process ?

    A. Hydration
    B. Decomposition
    C. Oxidation
    D. Reduction