In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas)

Check in a centrifugal pump is

The head loss in turbulent flow in a pipe varies

Which of the following quantities are computed by using the hydraulic radius for non-circular ducts ?

Air vessel provided in a reciprocating pump

Acceleration head in a reciprocating pump

The ratio of width to depth for the most economical rectangular section in open channel flow is

A mono pump is a __________ pump.

Euler's equation of motion states, that at every point, the

What is the normal range of exit cone angle of a venturimeter ?

The maximum delivery pressure of compressors can be upto __________ atmospheres.

When the momentum of one fluid is used for moving another fluid, such a device is called a/an

An ideal nozzle design aims at

Which of the following is the most common pump for pumping either raw sewage or sludge ?

A centrifugal pump has the following specifications:
Power = 4 H.P.; Speed =rpm
Head = 8 metres
Flow =litres/minutes.
If its speed is halved, the new discharge will be __________ litres/minute.

For laminar flow of Newtonion fluid in a circular pipe, the velocity distribution is a function of the distance 'd' measured from the centre line of the pipe, and it follows a __________ relationship.

A pitched-blade turbine draws __________ a straight blade turbine.

Which of the following pipe bends will incur the largest head loss ?

Boundary layer separation is caused by the

Manometers measure the __________ pressure.

Drag force acting on a body does not depend upon the

For flow through an orifice from a reservoir, the actual velocity at the vena con-tracta is given by

Centre of pressure in an immersed body is __________ the centre of gravity.

Bernoulli's equation is dependent on the

The ratio of inertial forces to elastic forces is called the __________ number.

The simple pitot tube measures the __________ pressure.

Higher specific speed (200-of a centrifugal pump indicates that the pump is of __________ flow type.

The Navier-Stokes equation deals with the law of conservation of

The dimension of dynamic viscosity is

Dimension of surface tension is(where, F = force, L = length)

The normal stress is the same in all directions at a point in a fluid, when the fluid is

Which of the fluid forces are not considered in the Reynold's equation of flow ?

Transition length for a turbulent fluid entering into a pipe is around __________ times the pipe diameter.

The dimension of kinematic viscosity is

The Prandtl mixing length is

The pressure head of a flow meter remains constant for

The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a

Which is the most efficient and best for measuring very small flow rate of gases ?

In an incompressible fluid, the density is

With increase in temperature, the vapor pressure of liquids

Centrifugal pump is normally classified on the basis of the

Pascal law is not applicable for a/an __________ fluid.

The continuity equation

The variable required to be known in correlations used for estimating the horse power of a centrifugal gas compressor and hence its cost are
P. Inlet pressure Q. Compressor rpm
R. Delivery pressure S. Volumetric flow rate at inlet.

A differential pressure cell is used for

Which of the following is not a dimension-less parameter ?

Head developed by a centrifugal pump depends on its

For ideally incompressible fluid, the Mach number will be

For turbulent flow of an incompressible fluid through a pipe, the flow rate Q is proportional to (Δ P)n, where ΔP is the pressure drop. The value of exponent 'n' is

A pipe of I.D. 4 m is bifurcated into two pipes of I.D. 2 m each. If the average velocity of water flowing through the main pipe is 5 m/sec, the average velocity through the bifurcated pipes is