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 =rpmHead = 8 metresFlow =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
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