Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

The line of action of the buoyant force passes through the centre of gravity of the

What causes cavitation in centrifugal pump ?

Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the

For pipe flows, head is proportional to __________ at constant capacity(where, D = pipe diameter).

In continuous fluidisation

In the low Reynolds number region, the drag force on a sphere is proportional to

In case of a pipe exit fitted with a nozzle, the

What is the shear rate at the pipe wall, in case of laminar flow of Newtonion fluids in a pipe of diameter 'D' & length 'L' incurring a pressure drop 'Δp' with average velocity 'V_avg'?

Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'

Pick out the Kozney-Karman equation (valid for low N_Re) for fluid flow through a packed bed of solids.

Draining of shallow pits or sump is done by a sump pump, which is a __________ pump.

For a given Reynold number as d/D for an orifice increases, C_d will (where, d & D are orifice & pipe diameters respectively).

Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of

A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.

For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is

Pascal's law is valid, only when the fluid is

The pump impeller and the turbine runner in a hydraulic torque converter

The friction factor for turbulent flow in a hydraulically smooth pipe

A hydraulic ram acts as a/an __________ pump.

Interstage coolers are provided in a multistage compressor to

Euler's equation of motion is a statement expressing

Reciprocating pumps compared to centrifugal pumps

The pressure at a point in a fluid is not the same in all directions, when the fluid is viscous and

The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonion fluid in a circular pipe is

During ageing of fluid carrying pipes, the

With increasing flow rate, the hydraulic efficiency of a centrifugal pump

A particle A of diametermicrons settles in an oil of specific gravity 0.9 and viscositypoise under Stoke's law. A particle B with diametermicrons settling in the same oil will have a settling velocity

Co-efficient of velocity is __________ the coefficient of discharge.

If 'x' is the depth of flow in an open channel of large width, then the hydraulic radius is equal to

The velocity profile for turbulent flow through a closed conduit is

The pitot static tube does not measure the __________ pressure.

All pipes of a particular nominal size have the same

Hydraulic mean depth (D_m) for a circular pipe of diameter 'D' flowing full is 0.D. For a circular channel, at D_m = 0.3 D, gives the condition for the maximum

In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of

The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid.

Pick out the wrong statement.

Which of the following denotes the effect of compressibility in fluid flow ?

For a particle settling in water at its terminal settling velocity, which of the following is true ?

During ageing of fluid carrying pipes, the

For the transfer of solution of thick slurry, the pump used is a __________ pump.

Capacity of a hydraulic accumulator is defined in terms of maximum

The pressure at a point in a fluid is not the same in all directions, when the fluid is viscous and

The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is

The head loss in turbulent flow in a pipe varies

Water hammer in a pipeline results from the

In fluid flow, cavitation is caused, if the

Pressure drag does not depend upon the

Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.

A Bingham fluid of viscosity μ =Pa.s and yield stress, τ₀ =KPa, is shared between flat parallel plates separated by a distance of 10^-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is