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The ratio of inertial forces to viscous forces is called the ______________ number?
Related MCQs
In laminar flow through a round tube, the discharge varies __________?
Fanning friction factor for laminar flow of fluid in a circular pipe is__________?
A hydraulic accumulator comprises of__________?
A pump operating under specific conditions delivers insufficient quantity of liquid. This may be set right by__________?
The ratio of pressure forces to inertial forces is called the __________ number?
In case of turbulent flow of fluid through a circular pipe, 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__________?
Forces acting on a particle settling in fluid are __________ forces?
Fluid resistance to shear depends upon its__________?
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)?
The equation relating friction factor to Reynold number, f-0.5 = 4 loge (NRe/√f)-0.4, is called the __________ equation?
Applicability of Bernoulli’s equation is limited to a/an __________ fluid, that does not exchange shaft work with the surroundings?
Potential flow is characterised by the__________?
Viscosity of water at 40°C lies in the range of__________?
Prandtl mixing length is__________?
The pressure co-efficient is the ratio of pressure forces to __________ forces?
In magnetic flow meters, voltage generation is__________?
Which of the following is a Newtonian fluid ?
In which of the following body shapes, the pressure drag is large compared to the friction drag ?
Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor?
When the water is warm, the height to which it can be lifted by a pump__________?
In centrifugal pumps, cavitation occurs, when pressure of the impeller eye or vane becomes__________?
Which of the following is the most common pump for pumping either raw sewage or sludge ?
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 ?
The boundary layer is that part of a moving fluid, in which the fluid velocity is__________?
For turbulent flow of an incompressible fluid through a pipe, the flow rate „Q‟ is proportional to (Δ P)n, where ΔP is the pressure drop. The value of exponent ‘n’ is__________?
What is the value of Fanning friction factor f ‘ for smooth pipe at NRe = 106 approximately ?
In the complete turbulence zone (in rough pipes), the__________?
Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around__________?
Equivalent length of a pipe fitting is__________?
In deriving Bernoulli’s equation, fluid is assumed to be__________?
Self-priming centrifugal pump can be used for__________?
Discharge in laminar flow through a pipe varies__________?
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, the new discharge will be __________ litres/minute ?
Which of the following is most prone to pulsating discharge flow ?
I.D. of 1/4″ schedule 40 pipe is 0.364″. I.D. of a 1/2″ schedule 40 pipe would be __________ inch?
Slurries can be most conveniently pumped by a __________ pump?
Poise is converted into stoke by __________?
A tube is specified by its__________?
In parallel pipe problems, the__________?
In Newton’s law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is__________?
For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is __________?
What is the shear rate at the pipe wall, in case of laminar flow of Newtonian fluids in a pipe of diameter ‘D’ & length ‘L’ incurring a pressure drop ‘Δp’ with average velocity ‘Vavg’ ?
For laminar flow of Newtonian fluid in a circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the centre line of the pipe, and it follows a __________ relationship?
For laminar flow of a fluid through a packed bed of spheres of diameter d, the pressure drop per unit length of bed depends upon the sphere diameter as__________?
Which is the most efficient and best for measuring very small flow rate of gases ?
Newton’s law of viscosity relates the__________?
Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will __________ the gas discharge pressure?
Bernoulli’s equation is not applicable, when the flow is__________?
The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop of __________ fluid?
In a/an __________, the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure?
The ratio of inertial forces to viscous forces is called the ______________ number?
A. Weber
B. Mach
C. Froude
D. Reynold
Correct Answer:
Reynold
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Last Updated:
March 09, 2019