MCQs Civil Engineering
1. The main ingredients of Portland cement are:
a. Lime and silica
b. Lime and Alumina
c. Silica and Alumina
d. All of the above
ans (a)
2. Good variety of cement contains higher percentage of :
a. Tricalcium silicate
b. Tricalcium Aluminate
c. Dicalcium silicate
d. None of the above
ans (a)
3. Quick sand is :
a. Type of sand/
b. Flow condition occuring in cohesive soil.
c. Flow condition occuring in Cohesionless soil.
d. All of the above
ans (c)
4. Water required per bag of cement is:
a. 7 Kg
b. 17 Kg
c. 28 Kg
d. 35 Kg
ans (c)
5. Pozzolana are rich in :
a. Silica
b. Silica and Alumina
c. silica, Alumina and alkali
d. Silica, alumina, alkali and iron
ans (c)
6. In ordinary Portland cement, the first one to react with water is :
a. C3A
b. C2S
c. C3S
d. C4AF
ans (a)
7. The constituent which imparts strength to cement is
a. Calcium Sulphate
b. Silica
c. Alumina
d. Magnesia
ans (b)
8. The expansion of cement should not exceed...........for any type of portland cement.
a. 5 mm
b. 10 mm
c. 15 mm
d. 20 mm
ans (b)
9. Gypsum is added in the manufacture of portland cement in order to
a. Shorten the setting time of cement
b. Lengthen thr setting time of cement
c. Decrease the burning temperature
d. Decrease the grinding time
ans (b)
10. The main constituent of a Portland cement is
a. Lime
b. Alumina
c. Iron Oxide
d.Alkali
ans (a)
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