The Prandtl pitot tube measures the
Mach number is the ratio of the speed of the
Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as
Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about
Kinetic energy of fluid per unit weight represented by the velocity head is given by
The unit of bulk modulus of elasticity for a liquid in S.I. unit is
Power requirement of fans having constant wheel diameter varies __________ fan speed.
Pick out the wrong statement.
For flow of fluids through packed bed, the superficial velocity is
The rate of shear versus the shear stress curves are time dependent for __________ fluid.
In a/an __________ , the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure.
In fluid flow, the boundary layer separation can not occur
For the laminar flow of a fluid in a circular pipe of radius R, the Hagen-Poisseule equation predicts the volumetric flow rate to be proportional to
Interstage coolers are provided in a multistage compressor to
Self-priming centrifugal pump can be used for
Maintenance cost of a __________ pump for a particular duty is the least.
Foot valves are provided in the suction line of a centrifugal pump to
An ideal fluid is
Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm.
Differential manometer measures the
A piezometer opening measures the __________ fluid pressure.
Dean number is concerned with the
The equation given below is called the __________ . f-0.5 = 4.loge (NRef)-0.6
Purpose of hydraulic accumulator is to
At a constant speed of the centrifugal pump . it __________ the impeller diameter.
In the low Reynolds number region, the drag force on a sphere is proportional to
Mass velocity is independent of temperature & pressure, when the flow is
Cd is always __________ Cc.
Buoyant force
In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is
A pressure ofm head of water is equivalent to __________ kN/m2.
Speed of sound in an ideal gas depends on its
For a given fluid flow rate, which of the following incurs maximum head loss ?
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the
The capacity of an accumulator is the maximum
Choking in case of pipe flow means that a
Choose the correct set of dimensions of viscosity that are equivalent (where, F, M, L, T are dimensions for force, mass, length and time respectively).
Two dimensional stream function
The pressure and power requirement of a gas fan at constant speed & capacity varies __________ the gas density.
The pressure co-efficient is the ratio of pressure forces to __________ forces.
Very small pressure difference (< 5 mm water coloumn) can be most conveniently measured by a/an __________ manometer.
A pressure head ofmetres of water in meters of CCl4 (sp.gr = 1.will be
A centrifugal pump designed for handling water (μ = 1 cp) will deliver __________ when pumping a thicker oil (μ =cp).
If 'x' is the depth of flow in an open channel of large width, then the hydraulic radius is equal to
Hydraulic intensifier is used for increasing the
Which of the following assumptions enables the Euler's equation of motion to be integrated ?
Bernoull's equation does not apply to the functioning of a/an
With increase in the temperature, viscosity of a liquid
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