In survey works declinations varies from time to time and place to place. The most important variation is ______

Compensating errors in chaining are _______

An error under the same conditions always of the same size and sign, is called ____

Theory of probability is applied to _____

Secular variation is important factor because

Gases, which are generally envolved during aerobic decomposition of sewage, are _____

The true bearing of a line can be calculated as ____ where declination is to the east.

Under normal conditions using an ordinary cement, the period of removal of the form work, is ______

Wedge storage in a river reach during passage of a flood wave in the rising phase is______

Minimum shear reinforcement is provided to _____

Muskinghain method of flood - routing is a

Errors which remain after mistakes and systematic errors have been eliminated are called _____

The most desirable alignment of an irrigation canal is along ______

Method used for chaining on sloping ground is

Offsets are ____