A. Flow in straight lines only
B. Uniform flow
C. Steady uniform flow
D. Flow in which transverse components are zero
Correct Answer: Flow in which transverse components are zero ✔
Last Updated: March 10, 2019
Related MCQs
- Turbine impeller__________?
- 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 ?
- The friction factor is__________?
- Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flowmeters, because their __________ is very low/small?
- High specific speed of a pump implies that, it is a/an __________ pump?
- The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is__________?
- Sewage sludge is an example of the __________ fluid?
- Viscosity of water is about __________ times that of air at room temperature?
- A hydraulic ram acts as a/an __________ pump?
- In fluid flow, the stagnation point is defined as a point, where the __________ is zero?
- During ageing of fluid carrying pipes, the__________?
- Creeping flow around a sphere is defined, when particle Reynolds number is__________?
- Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure?
- Which is not a variable head meter __________?
- Power requirement of fans having constant wheel diameter varies __________ fan speed?
- For a reciprocating pump, the indicator diagram is the graph between the__________?
- Efficiency of power transmission (ε) through a circular pipe is given by (ht – hf)/ht, which has a maximum value of __________ percent?
- A bed consists of particles of density 2000 kg/m3. If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is__________?
- The general relationship between speed N, head H, power P and discharge Q for a centrifugal pump 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?
- Which of the following is an undesirable property of a manometric liquid ?
- With a constant diameter impeller of a centrifugal pump __________?
- Maintenance cost of a __________ pump for a particular duty is the least?
- Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an __________?
- N. second/m2 is__________?
- The dimension of surface tension is__________?
- Friction factor for a hydraulically smooth pipe at NRe = 2100 is f1. If the pipe is further smoothened (i.e., roughness is reduced), the friction factor at the same value of NRe, will__________?
- It is possible to integrate an automatic flow controller to a__________?
- The unit of bulk modulus of elasticity for a liquid in S.I. unit is__________?
- For flow past a flat plate, if „x‟ is the distance along the plate in the direction of flow, the boundary layer thickness is proportional to__________?
- Path followed by water jet issuing from the bottom of a water tank will be a__________?
- Location of vena-contracta in an orificemeter does not depend upon the__________?
- The maximum head that can be developed by a single impeller is __________ ft?
- In case of Venturimeter, friction losses are about __________ percent of maximum velocity head?
- Drag co-efficient in hindered settling is __________ that in free settling?
- Working of a __________ pump characterises mixed flow?
- Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump ?
- If in a flow field, between any two points, then the flow must be__________?
- Characteristic curves for a centrifugal pump plotted against its capacity is shown in the diagram. x, y and z denote respectively__________?
- A gas (density = 1.5 kg/m3, viscosity = 2 × 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 1.5 kg/m3and viscosity of 3 × 10‒5kg/m.s flowing at 3 m/s will be__________?
- Cd is always __________ Cc?
- Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?
- For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a __________ relationship?
- In case of a Rotameter, the density of the float material is __________ that of the liquid it replaces?
- For the manometer set up shown in the figure, the pressure difference PA – PB is given by__________?
- The capacity of an accumulator is the maximum__________?
- In the Newton’s law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity?
- Boundary layer separation is characterised by one of the conditions given below, where ‘Re’ is the Reynolds number for the flow. Select the appropriate conditions ?
- Fluid flow in a/an __________ is an example of pressure flow?
- Slugging in a fluidised bed can be avoided by using__________?
- Friction produced by the formation of wakes is called the __________ friction?