Correct answer
A. increase in fineness of cement
Explanation
The correct answer is increase in fineness of cement.
The horizontal thrust on the ends of a two hinged semicircular arch of radius carrying________?
In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively________?
The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at________?
The maximum thickness of boundary layer in a pipe of radius r is________?
A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a________?
A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is________?