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Fluid Mechanics for Chemical Quiz 10

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Fluid Mechanics for Chemical Quiz 10

1 / 50

The centre of pressure is__________?

2 / 50

The exit cone angle in case of a standard Venturimeter is ______ the entrance cone angle?

3 / 50

The discharge through a rectangular weir varies as _____?

4 / 50

The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the_____?

5 / 50

The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by_______?

6 / 50

The co-efficient of discharge of an orificemeter is a function of _________?

7 / 50

The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by (where, x = each side of the square duct) ?

8 / 50

The co-efficient of drag and lift for an incompressible fluid depends on the__________?

9 / 50

The equation f-0.5 = 4.07 loge (NRe ?f)-0.6 is called the _____?

10 / 50

The energy equation, E + (p/?) + (V2/2g) + gZ = constant (E = internal energy/mass), is applicable to_____?

11 / 50

The discharge co-efficient for an orifice meter does not depend upon the _____?

12 / 50

The continuity equation in ideal fluid flow states that___________?

13 / 50

The _______ pressure is measured by a static tube?

14 / 50

The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is ________ the mean velocity of flow?

15 / 50

The bulk modulus of elasticity of a liquid___________?

16 / 50

The boundary layer thickness at a given section along a flat plate ______ with increasing Reynold?s number?

17 / 50

The dimension of dynamic viscosity is___________?

18 / 50

The distribution of shear stress in a stream of fluid in a circular tube is_______?

19 / 50

The discharge through a V-notch weir varies as_____?

20 / 50

The continuity equation_____?

21 / 50

The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?

22 / 50

The capillary rise of mercury is maximum in glass tube of dia ______ mm?

23 / 50

The discharge through a semi-circular weir varies as (where, H = Head of liquid.) ?

24 / 50

The dimension of kinematic viscosity is__________?

25 / 50

The curve of metacentre for a floating body _____ the curve of buoyancy?

26 / 50

The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides ?x? & ?y? is given by__________?

27 / 50

The blades of a centrifugal impeller are said to be curved forward, if the _____ of the motion of impeller blades?

28 / 50

Stoke?s law is valid, when NRe, p is less than__________?

29 / 50

Stoke?s law is valid, when the particle Reynolds number is ________?

30 / 50

Terminal velocity is_______?

31 / 50

The equation relating friction factor to Reynold number, f-0.5 = 4 loge (NRe/?f)-0.4, is called the ______ equation?

32 / 50

The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10-6m2/s) ?

33 / 50

Stoke?s equation is valid in the Reynolds number range___________?

34 / 50

The boundary layer is that part of a moving fluid, in which the fluid velocity is__________?

35 / 50

The discharge through a Venturimeter depends upon __________?

36 / 50

The buoyant force acting on a floating body is dependent on the ________?

37 / 50

The _____ is measured by a piezometric opening?

38 / 50

The contraction co-efficient for Borda?s mouthpiece (for frictionless fluid) is___________?

39 / 50

The continuity equation of fluid mechanics utilises the principle of conservation of __________?

40 / 50

The capacity of an accumulator is the maximum__________?

41 / 50

Surge tanks are provided in high pressure water pipelines to_____?

42 / 50

The effect of solid boundary on the fluid flow is confined to the boundary layer, except for fluids ?

43 / 50

The continuity equation___________?

44 / 50

The equivalent diameter for fluid flow through square cross section channel of side ?x?, for pressure drop calculation purpose is given by______?

45 / 50

The equivalent diameter for flow through a rectangular duct of width B and height H is_____?

46 / 50

The dimension of surface tension is_________?

47 / 50

The distance between metacentre and _______ is called metacentric height?

48 / 50

The flow of a liquid through tapering pipe at a constant rate is an example of ________ flow?

49 / 50

The capacity of a centrifugal pump Can be increased by increasing the__________?

50 / 50

The component of acceleration resulting due to unsteady nature of flow is called _____ acceleration?

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