21.Consider the following statements: In the bar chart planning # interdependence of the operations cannot be portrayed. # progress of work can be measured. # spare time of the activities can be determined. # schedule cannot be updated. Of these statements

22.At a work site, statistical quality control of concrete means

23.Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle?

24.In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace?