Top 350+ Solved Concrete Technology and Design MCQ Questions Answer
Q. The most useless aggregate is one whose surface texture is
a. smooth
b. granular
c. glassy
d. honey combed and porous
Q. The shrinkage of concrete
a. is proportional to water content is the mix
b. is proportional to cement concrete
c. increases with age of concrete
d. all the above
Q. The maximum thickness of concrete floor of a cement warehouse, is
a. 10 cm
b. 15 cm
c. 20 cm
d. 25 cm
Q. Too wet concrete may cause
a. weakness of concrete
b. excessive laitance
c. segregation
d. all the above
Q. The commonly used material in the manufacture of cement is
a. sand stone
b. slate
c. lime stone
d. graphite
Q. Grading of sand causes great variation in
a. workability of concrete
b. strength of concrete
c. durability of concrete
d. all the above
Q. The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is
a. 1 : 2 : 4
b. 1 : 3 : 6
c. 1 : 1½ : 3
d. 1 : 1 : 2
Q. Joints in concrete structures, are provided
a. to reduce the tensile stresses likely to be developed due to evaporation of water
b. to minimise the change in the dimensions of the slab
c. to minimise the necessary cracking
d. all the above
Q. For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is
a. 1 : 3 : 6
b. 1 : 1½ : 3
c. 1 : 2 : 4
d. 1 : 1 : 2
Q. Pick up the correct statement from the following:
a. water enables chemical reaction to take place with cement
b. water lubricates the mixture of gravel, sand and cement
c. strength of concrete structure largely depends upon its workability
d. all the above
Q. The final operation of finishing floors, is known as
a. screeding
b. floating
c. trowelling
d. finishing