For the following questions answer them individually
A benchmark has been established at the soffit of an ornamental arch at known elevation of 100.0 m above mean sea level. The back sight used to establish height of instrument is an inverted staff reading 2.105m. A forward sight-reading with normally held staff of 1.105m is taken on recently constructed plinth. The elevation of plinth is
The method of leveling in which heights of mountain are found by observing the temperature at which the water boils is known as
A river meanderingthrough an alluvial plain flows in a series of consecutive curves of reverse order (sinous Curve), the transverse distance between the apex point of one curve and apex point on the reverse curve is called
In the process of screening, the screen are inclined at $$45^\circ$$,the area of openings in screen should be suchthatthe velocity of flow through them doesnot exceed,