In a free vortex motion, the radial component of velocity everywhere is
In a free vortex motion, the radial component of velocity everywhere is
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called
Reaction turbines are used for
Reaction turbines are used for
The centre of pressure acts __________ the centre of gravity of immersed surface.
The centre of pressure acts __________ the centre of gravity of immersed surface.
A nozzle placed at the end of a water pipe line discharges water at a
A nozzle placed at the end of a water pipe line discharges water at a
The continuity equation is connected with
The continuity equation is connected with
A flow is called sub-sonic, if the Mach number is
A flow is called sub-sonic, if the Mach number is
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is
Discharge of a centrifugal pump is (where N = Speed of the pump impeller)
Discharge of a centrifugal pump is (where N = Speed of the pump impeller)
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by
The value of bulk modulus of a fluid is required to determine
The value of bulk modulus of a fluid is required to determine
Slip of a reciprocating pump is defined as the
Slip of a reciprocating pump is defined as the
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury?
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury?
Froude number is significant in
Froude number is significant in
The discharge over a triangular notch is
The discharge over a triangular notch is
In case of flow through parallel pipes,
In case of flow through parallel pipes,
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
Center of pressure on an inclined plane is
Center of pressure on an inclined plane is
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a
In the case of steady flow of a fluid, the acceleration of any fluid particle is
In the case of steady flow of a fluid, the acceleration of any fluid particle is
A thick liquid like syrup has a __________ viscosity than a light liquid like water.
A thick liquid like syrup has a __________ viscosity than a light liquid like water.
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
The upper surface of a weir over which water flows is known is
The upper surface of a weir over which water flows is known is
The power produced by the reaction turbine is ________ to the head of water.
The power produced by the reaction turbine is ________ to the head of water.
A body floating in a liquid is said to be in neutral equilibrium, if its metacentre
A body floating in a liquid is said to be in neutral equilibrium, if its metacentre
The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)
The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)
Slip of a reciprocating pump is negative, when
Slip of a reciprocating pump is negative, when
Which of the following manometer has highest sensitivity?
Which of the following manometer has highest sensitivity?
The discharge through a siphon spillway is
The discharge through a siphon spillway is
The two important forces for a floating body are
The two important forces for a floating body are
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is
The pressure of a liquid measured with the help of a Piezometer tube is
The pressure of a liquid measured with the help of a Piezometer tube is
A flow is called hyper-sonic, if the Mach number is
A flow is called hyper-sonic, if the Mach number is
The unit discharge through the turbine is
The unit discharge through the turbine is
When the Mach number is more than 6, the flow is called
When the Mach number is more than 6, the flow is called
Reynolds number is significant in
Reynolds number is significant in
The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.
The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.
Which of the following pump is preferred for flood control and irrigation applications?
Which of the following pump is preferred for flood control and irrigation applications?
In a Kaplan turbine runner, the numbers of blades are generally between
In a Kaplan turbine runner, the numbers of blades are generally between
Medium specific speed of turbine implies it is
Medium specific speed of turbine implies it is
If the depth of water in an open channel is greater than the critical depth, the flow is called
If the depth of water in an open channel is greater than the critical depth, the flow is called
The impeller of a centrifugal pump may have
The impeller of a centrifugal pump may have
A fluid in equilibrium can't sustain
A fluid in equilibrium can't sustain
In a Francis turbine runner, the numbers of blades are generally between
In a Francis turbine runner, the numbers of blades are generally between
The function of guide vanes in a reaction turbine is to
The function of guide vanes in a reaction turbine is to
For a body floating in a liquid the normal pressure exerted by the liquid acts at
For a body floating in a liquid the normal pressure exerted by the liquid acts at
If ‘w’ is the specific weight of liquid and ‘k’ the depth of any point from the surface, then pressure intensity at that point will be
If ‘w’ is the specific weight of liquid and ‘k’ the depth of any point from the surface, then pressure intensity at that point will be
Capillary action is due to the
Capillary action is due to the
Kinematic viscosity is dependent upon
Kinematic viscosity is dependent upon
In a static fluid
In a static fluid
The value of coefficient of discharge is __________ the value of coefficient of velocity.
The value of coefficient of discharge is __________ the value of coefficient of velocity.
Metacentric height is the distance between the metacentre and
Metacentric height is the distance between the metacentre and
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is
When the Mach number is less than unity, the flow is called
When the Mach number is less than unity, the flow is called
For hypersonic flow, the Mach number is
For hypersonic flow, the Mach number is
For very great pressures, viscosity of moss gases and liquids
For very great pressures, viscosity of moss gases and liquids
In a free nappe,
In a free nappe,
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.
The conditions for the stable equilibrium of a floating body are
The conditions for the stable equilibrium of a floating body are
If the depth of water in an open channel is less than the critical depth, the flow is called
If the depth of water in an open channel is less than the critical depth, the flow is called
Venturimeter is used to
Venturimeter is used to
The overall efficiency for a Pelton wheel lies between
The overall efficiency for a Pelton wheel lies between
If the surface of liquid is convex, men
If the surface of liquid is convex, men
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as
A structure, whose width is __________ the width of the channel, is called a flumed structure.
A structure, whose width is __________ the width of the channel, is called a flumed structure.
A streamline is defined as the line
A streamline is defined as the line
High specific speed of turbine implies it is
High specific speed of turbine implies it is
Mach number is significant in
Mach number is significant in
An ideal flow of any fluid must fulfill the following
An ideal flow of any fluid must fulfill the following
The coefficient of discharge for an external mouthpiece depends upon
The coefficient of discharge for an external mouthpiece depends upon
An air vessel is provided at the summit in a siphon to
An air vessel is provided at the summit in a siphon to
Ratio of inertia force to elastic force is known as
Ratio of inertia force to elastic force is known as
The cavitation in a hydraulic machine
The cavitation in a hydraulic machine
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
The unit of kinematic viscosity in S. I. units is
The unit of kinematic viscosity in S. I. units is
The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)
The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)
Bernoulli's equation is applied to
Bernoulli's equation is applied to
Two dimensional flows occurs when
Two dimensional flows occurs when
The top of the weir over which the water flows is known as
The top of the weir over which the water flows is known as
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is
Low specific speed of turbine implies it is
Low specific speed of turbine implies it is
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.
A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?
A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?
The time oscillation of a floating body with increase in meatcentric height will be
The time oscillation of a floating body with increase in meatcentric height will be
The flow in which each liquid particle has a definite path and their paths do not cross each other is called
The flow in which each liquid particle has a definite path and their paths do not cross each other is called
Which of the following is dimensionless?
Which of the following is dimensionless?
A one dimensional flow is one which
A one dimensional flow is one which
The viscosity of a liquid __________ its rate of flow through a hole in a vessel.
The viscosity of a liquid __________ its rate of flow through a hole in a vessel.
A nozzle is generally made of
A nozzle is generally made of
For manometer, a better liquid combination is one having
For manometer, a better liquid combination is one having
All the terms of energy in Bernoulli's equation have dimension of
All the terms of energy in Bernoulli's equation have dimension of
A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is
A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is
In impulse Turbine, energy available at the inlet is in the form of
In impulse Turbine, energy available at the inlet is in the form of
