In case of summit curves, the deviation angle will be maximum when________?

The main constituent of cement which is responsible for initial setting of cement is________?

Select the correct statement?

Number of vertical joints in a stretcher course is x times the number of joints in the header course, where x is equal to________?

What will be the curve lead for a 1 in 8.5 turnout taking off from a straight broad gauge track?

The cross -section of a road partly in banking and partly in cutting is shown in the given figure. The area of the shaded portion is________?