A Best Way To Crack Gorenment Job Exams

Civil Engineering Objective Questions { Concrete Technology }

8. After casting, an ordinary cement concrete on drying
A. expands
B. shrinks
C. shrinks
D. none of these

9.  Concrete containing
A. silicious aggregates, has higher co-efficient of expansion
B. igneous aggregates, has intermediate co-efficient of expansion
C. lime stones, has lowest co-efficient of expansion
D. All the above

10.  The produce impermeable concrete
A. thorough mixing of concrete is required
B. proper compaction of concrete is required
C. proper curing of concrete is required
D. all the above

11.  Separation of coarse aggregates froni mortar during transportation, is known
A. bleeding
B. creeping
C. segregation
D. shrinkage

12.  Separation of water or water sand cement from a freshly concrete, is known
A. bleeding
B. creeping
C. segregation
D. flooding

13.  Concrete mainly consists of
A. cement
B. aggregates
C. admixture
D. all the above

14.  Pick up the correct statement from the following :
A. Water cement paste hardens due to hydration ,
B. During hardening cement binds the aggregates together
C. Cement provides strength, durability and water tightness to the concrete
D. All the above

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