Correct answer
D. Four times
Explanation
The correct answer is Four times.
In sewers the velocity of flow should not be________?
For determining the velocity of flow of underground water, the most commonly used non-empirical formula is________?
Anti-siphonage pipe is connected to________?
Critical section for shear in case of flat slabs is at a distance of________?
In case of hill roads, the extra widening is generally provided________?
A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is________?