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Fluid Mechanics for Chemical Quiz 5

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Fluid Mechanics for Chemical Quiz 5

1 / 50

For the production of very high vacuum, a ______ pump is normally used?

2 / 50

For the same terminal conditions and fitting size, the least friction loss is incurred in a/an ?

3 / 50

For the same flow rate of a fluid, the pressure drop is the least for ______?

4 / 50

Hot wire anemometer is used to measure the__________?

5 / 50

Froude number is the ratio of___________?

6 / 50

For pipes that must be broken at intervals for maintenance, the connector used should be a/an___________?

7 / 50

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?

8 / 50

For turbulent flow of an incompressible fluid through a pipe, the flow rate ?Q? is proportional to (? P)n, where ?P is the pressure drop. The value of exponent ?n? is__________?

9 / 50

For steady ideal fluid flow, the Bernoulli?s equation states that the__________?

10 / 50

For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by________?

11 / 50

Gradually varying fluid flow is an example of _____ flow?

12 / 50

For pipe flows, head is proportional to __________ at constant capacity(where, D = pipe diameter) ?

13 / 50

For liquid flow through a packed bed, the superficial velocity as compared to average velocity through the channel in the bed is_________?

14 / 50

For the free settling of a spherical particle through a fluid, the slope of, CD-log NRe, plot is______?

15 / 50

For ideally incompressible fluid, the Mach number will be ___________?

16 / 50

Friction produced by the formation of wakes is called the _______ friction?

17 / 50

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______?

18 / 50

For very low pressure and high discharge rate, the compressor used is a/an _______ compressor?

19 / 50

Glass pipes can be joined by___________?

20 / 50

For laminar flow through a closed conduit______?

21 / 50

Hydraulic diameter for non-circular ducts is equal to ___________ times the area of flow divided by the perimeter?

22 / 50

For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is _________?

23 / 50

For laminar flow of Newtonian fluids through a circular pipe, for a given pressure drop and length & diameter of pipe, the velocity of fluid is proportional to (where, ? = fluid viscosity ) ?

24 / 50

For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is ________?

25 / 50

For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance) ?

26 / 50

Hydraulic intensifier is used for increasing the _____?

27 / 50

Forces acting on a particle settling in fluid are ______ forces?

28 / 50

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__________?

29 / 50

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________?

30 / 50

High specific speed of a pump implies that, it is a/an ______ pump?

31 / 50

Hydraulic ______ works on the principle of Pascal?s law of transmission of fluid pressure?

32 / 50

For the manometer set up shown in the figure, the pressure difference PA ? PB is given by__________?

33 / 50

Higher specific speed (200-500) of a centrifugal pump indicates that the pump is of _______ flow type?

34 / 50

Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will ______ the gas discharge pressure?

35 / 50

Hydraulic radius is the ratio of ______?

36 / 50

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?

37 / 50

Froude number is not a factor___________?

38 / 50

Function of air vessel provided in a reciprocating pump is to__________?

39 / 50

For flow through a venturi at a particular discharge, the correct relationships among heads at points X, Y, and Z are___________?

40 / 50

For flow through a venturi at a particular discharge, the correct relationships among velocities at point X, Y and Z would be ___________?

41 / 50

For water, when the pressure increases, the viscosity__________?

42 / 50

For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is_____?

43 / 50

For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter) ?

44 / 50

For the transfer of solution of thick slurry, the pump used is a ______ pump?

45 / 50

Gear pump__________?

46 / 50

Gradually varied flow in open channel is a/an _____ flow?

47 / 50

Horsepower requirement for given pump capacity depends upon the________?

48 / 50

Hydraulic mean radius for flow through packed bed of spherical particle of size, ?Dp, with porosity ??? is_________?

49 / 50

Hydraulic mean depth (Dm) for a circular pipe of diameter ?D? flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum ?

50 / 50

Head developed by a centrifugal pump depends on its_____?

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