A. fcr=0.35Vf7
B. fcr=0.57f7
C. fcr=0.7Vf7
D. fcr=1.2Vf7
where fcr and fck are in N/mm2′
A. reduces the strength
B. increases the strength
C. does not change the strength
D. all of the above
Increase in the moisture content in concrete_________________? Read More »
Design of Concrete Structures, MCQs / Q&A A. workability admixtures
B. accelerators
C. retarders
D. air entraining agents
A. 10 to 15% more
B. 15 to 20% more
C. 20 to 25% more
D. 25 to 50% more
A. gypsum
B. calcium chloride
C. sodium silicate
D. all of the above
A. Ec = = 5700
B. Ec = = 570
C. Ec = = 5700fck
D. Ec = where fck N/mm2 = 700 is the characteristic strength in
A. reduces workability
B. increases bleeding
C. increases shrinkage
D. increases strength
As compared to ordinary portland cement, use of pozzuolanic cement_______________? Read More »
Design of Concrete Structures, MCQs / Q&A A. increase in water-cement ratio
B. increase in fineness of cement
C. decrease in curing time
D. decrease in size of aggregate
Strength of concrete increases with________________? Read More »
Design of Concrete Structures, MCQs / Q&A A. tcr – rcs = tct
B. fcr>fcs>fc
C. fcr<fcs
D. fc5>fcr>fC
A. aggregate cement ratio
B. time of transit
C. grading of the aggregate
D. all of above
Workability of concrete is directly proportional to________________? Read More »
Design of Concrete Structures, MCQs / Q&A