With increase in pump speed, its NPSH requirement

Actual lift of a pump is always less than the theoretical lift and is limited by the

Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.

Permanent loss in a venturimeter is about __________ percent of the pressure drop in theupstream cone.

One horsepower is equal to

The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be

Slurries can be most conveniently pumped by a __________ pump.

Which of the following relationship is valid for the equilibrium position of the float in a rotameter ?(where, D_f= Drag force on the float B_f = Buoyant force on the float W_f = Weight of the float)

A relief valve

The continuity equation in ideal fluid flow states that

Bernoulli's equation accounts for the

The pipe wall thickness is minimum for a pipe of given nominal size having schedule number

A spherical particle is falling slow in a viscous liquid such that Reynolds number is less thanWhich statement is correct for this situation ?

Deformation drag, which is caused by widespread deformation of fluid around the immersed body

__________ flow means the flow of incompressible fluid with no shear.

Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density.

Medium viscosity lubricating oil can be most ideally pumped by a __________ pump.

C_p/C_v is termed as

The kinetic energy correction factor for velocity distribution of laminar flow is

The time taken for gravity flow of a fixed volume of liquid (as in Redwood viscometer) is directly proportional to its

In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity.

In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow?

Reynolds number for water flow through a tube of I.D. 5 cm isIf a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will

Volume of liquid displaced by a floating body is equivalent to its

Fluid flow in a/an __________ is an example of pressure flow.

Volute type of casing is provided in a centrifugal pump to

Drag is defined as the force exerted by the

An isentropic process is the one, in which

A gas

In isotropic turbulence, the __________ are equal to each other.

Creeping flow around a sphere is defined, when particle Reynolds number is

In a fully turbulent flow (Re > 10⁵) in a pipe of diameter 'd', for a constant pressure gradient, the dependence of volumetric flow rate of an incompressible fluid is

Pressure drop for laminar fluid flow through a circular pipe is given by

Priming of a centrifugal pump is done to

The exit cone angle in case of a standard venturimeter is __________ the entrance cone angle.

Gear pump

Nature of fluid flow during the opening of a valve in a pipeline is

The bulk modulus of elasticity of a liquid

The __________ is measured by a piezometric opening.

In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as :(where, 'δ' is the boundary layer thickness and 'x' is the distance from the leading edge in the direction of flow).

A rotameter through which air at room temperature and atmospheric pressure is flowing gives a certain reading for a flow rate ofcc/sec. If helium (molecular weightis used and rotameter shows the same reading, the flow rate (cc/sec) is

The boundary layer is that part of a moving fluid, in which the fluid velocity is

The distribution of shear stress in a stream of fluid in a circular tube is

Pump used for the transportation of molten sodium in a fast breader reactor is a/an __________ pump.

Bed pressure drop in an air fluidised bed of catalyst particles (ρ_p =kg/mD_p = 0.cm) ofcm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is

Sewage sludge is __________ type of non-Newtonion fluid.

A mixed flow centrifugal pump

Most of the centrifugal pumps used in chemical plants are usually __________ driven.

What is the pipe called which lifts water from a reservoir to a greater height than the initial level in the supply reservoir ?

Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury)