For solving network problems of pipes, necessary condition is

Orifice-meter is used to measure

Hydraulic radius is equal to

Flow in pipes is laminar if Reynold number is

When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe

Pick up the correct statement from the following :

To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is

The discharg formula Q = C_d 2gH x A is used for rectangular

If jet of water coming out from a nozzle with a velocity 9.m/s, the angle of elevation being 30°, the time to reach the highest point is

To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is

In a fluid flow a particle may posses

Barometres are used to measure

The ratio of inertia force of a flowing fluid and the viscous force of the liquid is called :

Atmospheric pressure varies with

Discharge over an ogee weir remains the same as that of

From a nozzle exposed to atmosphere, the liquid jet traverses

The discharge through amm diameter external mouth piece fitted to the side of a large vessel is 0.m³/s. The head over the mouth piece is

In two dimensional flow the components of velocity are given by u = ax; v = by. The stream lines will be

In flow, the liquid particles may possess

For most economical rectangular section of a channel, the depth is kept

The magnitude of water hammer in a pipe depends upon

Dimensions of the dynamic viscosity (μ) are

When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as

To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is

The acceleration f required to accelerate a rectangular tank containing water horizontally so that the slope of its free surface is 45°, is

If cohesion between the molecules of a fluid is more than adhesion between the fluid and glass, the free level of fluid in a dipped glass tube will be

The discharge through a V-notch weir varies as

Euler's equation for the motion of liquids assumes that

In a centrifugual pump casing, the flow of water leaving the impeller, is

Water belongs to