A. Vacuum pumps
B. Blowers
C. Fans
D. Compressors
Correct Answer: Compressors ✔
Last Updated: March 10, 2019
Related MCQs
- Bernoulli’s equation is dependent on the__________?
- For the production of very high vacuum, a __________ pump is normally used?
- Foot valve provided in the pump is a __________ valve?
- For water, when the pressure increases, the viscosity__________?
- Air vessel provided in a reciprocating pump is for__________?
- Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head?
- Multistage centrifugal pumps are generally used for__________?
- Specific speed of a centrifugal pump depends upon the __________ head?
- The simple Pitot tube does not measure the__________?
- Bernoulli’s equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli’s equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent. D. Fluid is compressible. E. Fluid is incompressible ?
- Transition from laminar flow to turbulent flow is aided by the__________?
- At low Reynolds number__________?
- Which of the following valves will incur maximum pressure drop for the same discharge of water ?
- Venturimeter and orificemeter measures the __________ of the fluid?
- A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid?
- In the low Reynolds number region, the drag force on a sphere is proportional to__________?
- Capillary tube method of viscosity measurement is based on the __________?
- Nominal Pipe Size (NPS) of a pipe less than 12 inches in diameter indicates its__________?
- The friction factor for turbulent flow in a hydraulically smooth pipe__________?
- The continuity equation__________?
- Rubber latex is an example of a __________ fluid?
- Specific speed for a centrifugal pump is__________?
- 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__________?
- The fluid jet discharging from a 2″ diameter orifice has a diameter of 1.75″ at its venacontracta. The co-efficient of contraction is__________?
- In frictional fluid flow, the quantity, (P/ρ) + (V2/2gc) + gz/gc) is__________?
- A Newtonian liquid (ρ = density, μ = viscosity) is flowing with velocity „v‟ in a tube of diameter ‘D’. Let Δp be the pressure drop across the length ‘L’. For a laminar flow, Δp is proportional to__________?
- An equipotential line is __________ to the velocity vector at every point?
- The nominal size of a hose pipe is specified by its __________?
- The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides ‘x’ & ‘y’ is given by__________?
- For liquid flow through a packed bed, the superficial velocity as compared to average velocity through the channel in the bed is__________?
- Each term in Bernoulli‟s equation represents the __________ of the fluid?
- For laminar flow through a closed conduit__________?
- One dimensional fluid flow implies the __________?
- 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?
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- 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__________?