A. Hydration
B. Decomposition
C. Oxidation
D. Reduction
Related Mcqs:
- Shrinkage volume in cement setting does not depend upon the _____________________?
A. Sand to cement ratio
B. Water to cement ratio
C. Ambient temperature fluctuation
D. Drying period - 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 - Extraction of _________________ employs an electrolytic process ?
A. Aluminium
B. Silver
C. Copper
D. All A, B. and C - Production of one ton of cement requires about _______________ tons of limestone ?
A. 0.6
B. 1.2
C. 2.2
D. 3.8 - Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement ?
A. Xanthates
B. Stearic acid
C. Calcium & aluminium stearate
D. Formic acid - Separation of fresh water from sea water can be done by the _______________ operation ?
A. Osmosis
B. Reverse osmosis
C. Absorption
D. Adsorption - Solvay process as compared to dual process (i.e. modified Solvay process) ?
A. Can use low grade brine
B. Has less corrosion problems
C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl
D. Both B. and C. - Setting of plaster of Paris is accompanied with___________________?
A. Hydration
B. Dehydration
C. Hydrolysis
D. Loss of CO2 - Raw materials used for producing ________________ cement does not contain iron oxide?
A. Waterproof
B. Slag
C. White
D. Pozzolan - Cement mainly contains_________________?
A. CaO, SiO2, Al2O3
B. MgO, SiO2, K2O
C. Al2O3, MgO, Fe2O3
D. CaO, MgO, K2O
