Top 250+ Solved Concrete Technology MCQ Questions Answer
Q. Aerated Concrete is ______________
a. Very heavy weight
b. Heavy weight
c. Medium weight
d. Light weight
Q. No fines concrete is manufactured by _____________
a. By adding no fines materials from normal concrete
b. By eliminating no fines materials from normal concrete
c. By reducing its strength
d. By increasing its strength
Q. Density of no fines concrete with light weight aggregate vary from ________ kg/m3.
a. 1600-1900
b. <300
c. >2500
d. >300
Q. Diameter of Round Steel Fiber lies in the range of ________ mm.
a. .3-.5
b. .25-.75
c. .155-.41
d. .25-.90
Q. What is wet process?
a. Grinding and mixing of the raw materials in their dry state
b. Grinding and mixing of the raw materials in their medium state
c. Grinding and mixing of the raw materials in their wet state
d. Grinding and mixing of the raw materials in their overheated state
Q. Excess in lime causes _______
a. The cement to shrink and integrate
b. The cement to shrink and disintegrate
c. The cement to expand and integrate
d. The cement to expand and disintegrate
Q. Silica in excess causes ________
a. The cement to set slowly
b. The cement to set quickly
c. The cement to expand
d. The cement to disintegrate
Q. Alumina in excess causes _________
a. Reduces the strength of the cement
b. Increases the strength of the cement
c. none
d. all
Q. Which cement contains high percentage of C3S and less percentage of C2S?
a. Rapid Hardening Cement
b. Ordinary Portland Cement
c. Quick Setting Cement
d. Low Heat Cement
Q. When concrete is to be laid under water ___________ is to used.
a. Rapid Hardening Cement
b. Ordinary Portland Cement
c. Quick Setting Cement
d. Low Heat Cement
Q. Which of the following is correct for Low Heat Cement?
a. Suitable for use in cold weather areas
b. Heat of hydration is reduced by tri calcium aluminate content
c. This cement requires longer period of curing
d. This cement contains high aluminate %age usually between 35-55%.
Q. Which cement is used in sewage and water treatment plants?
a. Rapid Hardening Cement
b. Low Heat Cement
c. Sulphate Resisting Cement
d. Quick Setting Cement