The ratio of frictional factor and coefficient of friction used in general equation for a head loss in a pipe, is

For the two dimensional flow, the stream function is given by ψ = 2xy. The velocity at a point (is

In an open tube, free surface of mercury remains

Pick up the correct statement from the following :

Equation of continuity of fluids is applicable only if

For critical depth of flow of water in open channels, f_c the specific energy must be :

Due to decrease of diameter of the droplet, inside pressure intensity

A rectangular channel 6 m wide and 3 m deep and having a bed slope as 1 inis running full. If Chezy's constant C = 54.pick up the correct specification of the channel from the following :

Total pressure on the top of a closed cylindrical vessesl completely filled with liquid, is directly proportional to

For critical depth of flow of water in open channels, f_c the specific energy must be :

If the Mach number for a fluid flow is less thanthe flow is

Water flows through a convergent mouthpiece of diameter 4 cm at convergence under a head of 3 metres. If the maximum vacuum pressure is 9 metres of water, the maximum diameter of divergence, to aviod separation of flow, is

Molecules of fluids get attracted due to

For the flow of liquid from an open ended tube (or nozzle) leading to the formation of spray of liquid drops, the number generally applied, is

Flow in pipes is turbulent if Reynold number is

A floating body attains stable equilibrium if its metacentre is

Molecules of fluids get attracted due to

The flow in open channel is said to be subcritical if the Froude number is

Mercury is generally used in barometers because

The flow in open channel is said to be critical if the Froude number is :

In order to avoid capillary correction, the minimum diameter of a manometer used for measuring pressure, should be

Non-over flow double curvature concrete arch, is provided in

Energy equation is usually applicable to

The flow is called rotational if its velocity normal to the plane of area is equal to

Hydraulic coefficient of an orifice means the coefficient of

The upper surface of the weir over which water flows, is known as

The flow is called rotational if its velocity normal to the plane of area is equal to

The upper surface of the weir over which water flows, is known as

An ideal fluid

Cappoletti weir is a