Most common method of prestressing used for factory production is________________?

The property of the ingredients to separate from each other while placing the concrete is called____________?

A. segregation

B. compaction

C. shrinkage

D. bulking

Approximate value of shrinkage strain in concrete, is________________?

A. 0.003

B. 0.0003

C. 0.00003

D. 0.03

Workability of concrete is directly proportional to________________?

A. aggregate cement ratio

B. time of transit

C. grading of the aggregate

D. all of above

The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by_______________?

A. tcr – rcs = tct

B. fcr>fcs>fc

C. fcr

D. fc5>fcr>fC

Strength of concrete increases with________________?

A. increase in water-cement ratio

B. increase in fineness of cement

C. decrease in curing time

D. decrease in size of aggregate