Most probable value of an observed quantity available from a given set of observation is the one for which the sum of the square of errors is minimum this statement is called _______

Theory of probability is applied to _____

If n observations are taken, then accidental errors are proportional to

Two pipe system are said to be equivalent when

If the modular ratio is 'm', effective depth is D, and stress ratio is r [0th/0_cbc], then the depth of neutral axis of a balanced section is ____

The horizontal component of force on a curved surface is equal to

If total hardness and alkalinity of a sample of water are 300mg/I and 100 mg /i (CaCO3 scale) respectively, then its carbonate and non-carbonate hardness (in units of mg/i) will be respectively

Which of the following statement is incorrect?

A fluid is a substance that ________

Two reservoirs at different levels are connected by two parallel pipes of diameter 2d and d. The ratio of flows in the two pipes (large smaller) is _____

A 30m chain was found to be 20 cm too long after chaining 1500m. The correct length of the total distance chained will be

Given the following data sedimentation tank : Volume of tank = 10 m x 50 m x Flow rate = 500 m/day The retension time would be _______

Digonal tention in beam ______

Dissolve organic solids in wastewater treatment may be removed by

The usual mix adopted for cement concrete for R.C.C. pipes in ________