The dimension of dynamic viscosity is
The dimension of dynamic viscosity is
What is the ratio of fluid carrying capacity of two pipes having diameters d₁ and d₂ respectively?
What is the ratio of fluid carrying capacity of two pipes having diameters d₁ and d₂ respectively?
Diaphragm pumps are used to transport
Diaphragm pumps are used to transport
Stoke's law is valid, when the particle Reynolds number is
Stoke's law is valid, when the particle Reynolds number is
Umf is the minimum fluidisation velocity for a bed of particles. An increase in the superficial gas velocity from 2 Umf to 2.5 Umf results in (all velocities are smaller than the entrainment velocity of the particles) no change in the
Umf is the minimum fluidisation velocity for a bed of particles. An increase in the superficial gas velocity from 2 Umf to 2.5 Umf results in (all velocities are smaller than the entrainment velocity of the particles) no change in the
To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump.
To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump.
The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number.
The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number.
The line of action of the buoyant force passes through the centre of gravity of the
The line of action of the buoyant force passes through the centre of gravity of the
A gas (density = 1.5 kg/m³ , viscosity = 2x 10⁻⁵ kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5kg/m³and viscosity of 3 x 10⁻⁵kg/m.s flowing at 3 m/s will be
A gas (density = 1.5 kg/m³ , viscosity = 2x 10⁻⁵ kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5kg/m³and viscosity of 3 x 10⁻⁵kg/m.s flowing at 3 m/s will be
The discharge through a rectangular weir varies as
The discharge through a rectangular weir varies as
For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the
For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the
The maximum delivery pressure of compressors can be upto __________ atmospheres.
The maximum delivery pressure of compressors can be upto __________ atmospheres.
Pick out the correct statement pertaining to transition/ entrance length in fluid flow.
Pick out the correct statement pertaining to transition/ entrance length in fluid flow.
Deformation drag, which is caused by widespread deformation of fluid around the immersed body
Deformation drag, which is caused by widespread deformation of fluid around the immersed body
Foot valve provided in the pump is a __________ valve.
Foot valve provided in the pump is a __________ valve.
Specific speed of a centrifugal pump depends upon the __________ head.
Specific speed of a centrifugal pump depends upon the __________ head.
Drag is defined as the force exerted by the
Drag is defined as the force exerted by the
The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is
The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is
Surge tanks are provided in high pressure water pipelines to
Surge tanks are provided in high pressure water pipelines to
The rate of shear versus the shear stress curves are time dependent for __________ fluid.
The rate of shear versus the shear stress curves are time dependent for __________ fluid.
During ageing of fluid carrying pipes, the
During ageing of fluid carrying pipes, the
Absolute viscosity of a fluid is a function of the __________ of the fluid.
Absolute viscosity of a fluid is a function of the __________ of the fluid.
Froude number is the ratio of
Froude number is the ratio of
Creeping flow around a sphere is defined, when particle Reynolds number is
Creeping flow around a sphere is defined, when particle Reynolds number is
Applicability of Bernoulli's equation is limited to a/an __________ fluid, that does not exchange shaft work with the surroundings.
Applicability of Bernoulli's equation is limited to a/an __________ fluid, that does not exchange shaft work with the surroundings.
Boundary layer separation is caused by the
Boundary layer separation is caused by the
Steady non-uniform flow is exemplified by flow through a/an
Steady non-uniform flow is exemplified by flow through a/an
The maximum head that can be developed by a single impeller is __________ ft.
The maximum head that can be developed by a single impeller is __________ ft.
For flow through an orifice from a reservoir, the actual velocity at the vena con-tracta is given by
For flow through an orifice from a reservoir, the actual velocity at the vena con-tracta is given by
The general relationship between speed N, head H, power P and discharge Q for a centrifugal pump is
The general relationship between speed N, head H, power P and discharge Q for a centrifugal pump is
A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is
A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is
What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition?
What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition?
Momentum correction factor used in fluid flow problems accounts for the
Momentum correction factor used in fluid flow problems accounts for the
Drag is the force component exerted on an immersed object,
Drag is the force component exerted on an immersed object,
For an ideal fluid flow, Reynolds number is
For an ideal fluid flow, Reynolds number is
Head developed by a centrifugal pump depends on its
Head developed by a centrifugal pump depends on its
Which of the following has the maximum compression ratio?
Which of the following has the maximum compression ratio?
Which is the most efficient and best for measuring very small flow rate of gases?
Which is the most efficient and best for measuring very small flow rate of gases?
Fluid flow through a packed bed is represented by the __________ equation.
Fluid flow through a packed bed is represented by the __________ equation.
In open channel flow in a rectangular channel, the ratio between the critical depth and the initial depth, when a hydraulic jump occurs is
In open channel flow in a rectangular channel, the ratio between the critical depth and the initial depth, when a hydraulic jump occurs is
The main factor on which the behaviour of a mass of fluidised solid depends mainly is the
The main factor on which the behaviour of a mass of fluidised solid depends mainly is the
Pick out the correct statement pertaining to the flow through a converging-diverging tube.
Pick out the correct statement pertaining to the flow through a converging-diverging tube.
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 'Vavg'?
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 'Vavg'?
The pressure and power requirement of a gas fan at constant speed & capacity varies __________ the gas density.
The pressure and power requirement of a gas fan at constant speed & capacity varies __________ the gas density.
With increasing flow rate, the hydraulic efficiency of a centrifugal pump
With increasing flow rate, the hydraulic efficiency of a centrifugal pump
In case of a rotameter, the density of the float material is __________ that of the liquid it replaces.
In case of a rotameter, the density of the float material is __________ that of the liquid it replaces.
Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation?
Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation?
In hindered settling, the particles are
In hindered settling, the particles are
Reynolds number is the ratio of
Reynolds number is the ratio of
For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is
For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is
Froude number is not a factor
Froude number is not a factor
Disc compensators are provided in large diameter fuel gas carrying pipelines to
Disc compensators are provided in large diameter fuel gas carrying pipelines to
Which of the following relationship is valid for the equilibrium position of the float in a rotameter ?(where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)
Which of the following relationship is valid for the equilibrium position of the float in a rotameter ?(where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)
For ideally incompressible fluid, the Mach number will be
For ideally incompressible fluid, the Mach number will be
A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be __________ cms.
A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be __________ cms.
Air vessel fitted to a reciprocating pump
Air vessel fitted to a reciprocating pump
Quicksand is an example of a __________ fluid.
Quicksand is an example of a __________ fluid.
Hydraulic diameter for non-circular ducts is equal to __________ times the area of flow divided by the perimeter.
Hydraulic diameter for non-circular ducts is equal to __________ times the area of flow divided by the perimeter.
The percentage slip in a reciprocating pump set is given by the % of (where, Q₁ = actual discharge Q₂ = theoretical discharge)
The percentage slip in a reciprocating pump set is given by the % of (where, Q₁ = actual discharge Q₂ = theoretical discharge)
The energy equation, E + P/ρ + V²/2g +gZ (E = internal energy/mass), is applicable to
The energy equation, E + P/ρ + V²/2g +gZ (E = internal energy/mass), is applicable to
Each term of the Bernoulli's equation written in the form, P/ρ + g/gc .Z + v²/2gc = constant , represents the total energy per unit
Each term of the Bernoulli's equation written in the form, P/ρ + g/gc .Z + v²/2gc = constant , represents the total energy per unit
Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of
Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of
Boundary layer separation is caused by the
Boundary layer separation is caused by the
Glass pipes can be joined by
Glass pipes can be joined by
An equipotential line is __________ to the velocity vector at every point.
An equipotential line is __________ to the velocity vector at every point.
Volute of a centrifugal pump should be designed in a fashion, such that the
Volute of a centrifugal pump should be designed in a fashion, such that the
Slugging in a fluidised bed can be avoided by using
Slugging in a fluidised bed can be avoided by using
A centrifugal pump has the following specifications:
Power = 4 H.P.; Speed = 800 rpm
Head = 8 metres
Flow = 1000 litres/minutes.
If its speed is halved, then the new head will be __________ metres.
A centrifugal pump has the following specifications:
Power = 4 H.P.; Speed = 800 rpm
Head = 8 metres
Flow = 1000 litres/minutes.
If its speed is halved, then the new head will be __________ metres.
A free jet of water of cross-sectional area 0.01m² and a velocity of 20 m/s strikes a plate and then flows in a plane parallel to the plate as shown in the figure below. The horizontal component of the force on the support is
A free jet of water of cross-sectional area 0.01m² and a velocity of 20 m/s strikes a plate and then flows in a plane parallel to the plate as shown in the figure below. The horizontal component of the force on the support is
Discharge from a 24 inch pipe of water at 10 ft/sec will be __________ ft³/sec.
Discharge from a 24 inch pipe of water at 10 ft/sec will be __________ ft³/sec.
A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.
A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.
Ratio of pressure and inertia force gives __________ number.
Ratio of pressure and inertia force gives __________ number.
Minimum fluidisation velocity for a specific system depends upon the
Minimum fluidisation velocity for a specific system depends upon the
What is the ratio of total kinetic energy of fluid passing per second to the value obtained on the basis of average velocity (for laminar flow through a circular pipe)?
What is the ratio of total kinetic energy of fluid passing per second to the value obtained on the basis of average velocity (for laminar flow through a circular pipe)?
Centrifugal pump can't be used to pump
Centrifugal pump can't be used to pump
With increase in the temperature, viscosity of a liquid
With increase in the temperature, viscosity of a liquid
In case of centrifugal fan or blower, the gas capacity varies as
In case of centrifugal fan or blower, the gas capacity varies as
The valve used for very remote and accurate control of fluid is a __________ valve.
The valve used for very remote and accurate control of fluid is a __________ valve.
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
In case of a pipe exit fitted with a nozzle, the
In case of a pipe exit fitted with a nozzle, the
Pressure drop in packed bed for turbulent flow is given by the __________ equation.
Pressure drop in packed bed for turbulent flow is given by the __________ equation.
What is the pipe called which lifts water from a reservoir to a greater height than the initial level in the supply reservoir?
What is the pipe called which lifts water from a reservoir to a greater height than the initial level in the supply reservoir?
The ratio of width to depth for the most economical rectangular section in open channel flow is
The ratio of width to depth for the most economical rectangular section in open channel flow is
In Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass varies as the __________ of its diameter.
In Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass varies as the __________ of its diameter.
The terminal velocity of a particle moving through a fluid varies as dpn. What is the value of n' for Newton's law regime?
The terminal velocity of a particle moving through a fluid varies as dpn. What is the value of n' for Newton's law regime?
The discharge through a venturimeter depends upon
The discharge through a venturimeter depends upon
Pressure drop in a packed bed for laminar flow is given by the __________ equation.
Pressure drop in a packed bed for laminar flow is given by the __________ equation.
