Fluid Mechanics for Chemical Quiz 10

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**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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