Fluid Mechanics for Chemical Quiz 10
1 / 50
The equation f-0.5 = 4.07 loge (NRe ?f)-0.6 is called the _____?
2 / 50
Stoke?s law is valid, when the particle Reynolds number is ________?
3 / 50
The equivalent diameter for flow through a rectangular duct of width B and height H is_____?
4 / 50
The capacity of a centrifugal pump Can be increased by increasing the__________?
5 / 50
The boundary layer is that part of a moving fluid, in which the fluid velocity is__________?
6 / 50
The continuity equation___________?
7 / 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__________?
8 / 50
The discharge through a rectangular weir varies as _____?
9 / 50
The continuity equation of fluid mechanics utilises the principle of conservation of __________?
10 / 50
The _______ pressure is measured by a static tube?
11 / 50
The distance between metacentre and _______ is called metacentric height?
12 / 50
Terminal velocity is_______?
13 / 50
The equivalent diameter for fluid flow through square cross section channel of side ?x?, for pressure drop calculation purpose is given by______?
14 / 50
The continuity equation in ideal fluid flow states that___________?
15 / 50
The excess of the sum of pressure & velocity heads over the vapor pressure of the liquid at the suction is called the_____?
16 / 50
The centre of pressure is__________?
17 / 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) ?
18 / 50
The blades of a centrifugal impeller are said to be curved forward, if the _____ of the motion of impeller blades?
19 / 50
The _____ is measured by a piezometric opening?
20 / 50
The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?
21 / 50
The dimension of kinematic viscosity is__________?
22 / 50
Stoke?s law is valid, when NRe, p is less than__________?
23 / 50
The discharge co-efficient for an orifice meter does not depend upon the _____?
24 / 50
The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is ________ the mean velocity of flow?
25 / 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) ?
26 / 50
The bulk modulus of elasticity of a liquid___________?
27 / 50
The component of acceleration resulting due to unsteady nature of flow is called _____ acceleration?
28 / 50
Surge tanks are provided in high pressure water pipelines to_____?
29 / 50
The exit cone angle in case of a standard Venturimeter is ______ the entrance cone angle?
30 / 50
The boundary layer thickness at a given section along a flat plate ______ with increasing Reynold?s number?
31 / 50
The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by_______?
32 / 50
The effect of solid boundary on the fluid flow is confined to the boundary layer, except for fluids ?
33 / 50
The buoyant force acting on a floating body is dependent on the ________?
34 / 50
The dimension of dynamic viscosity is___________?
35 / 50
The co-efficient of drag and lift for an incompressible fluid depends on the__________?
36 / 50
The equation relating friction factor to Reynold number, f-0.5 = 4 loge (NRe/?f)-0.4, is called the ______ equation?
37 / 50
The co-efficient of discharge of an orificemeter is a function of _________?
38 / 50
The discharge through a semi-circular weir varies as (where, H = Head of liquid.) ?
39 / 50
The dimension of surface tension is_________?
40 / 50
The flow of a liquid through tapering pipe at a constant rate is an example of ________ flow?
41 / 50
The curve of metacentre for a floating body _____ the curve of buoyancy?
42 / 50
The distribution of shear stress in a stream of fluid in a circular tube is_______?
43 / 50
The capacity of an accumulator is the maximum__________?
44 / 50
The contraction co-efficient for Borda?s mouthpiece (for frictionless fluid) is___________?
45 / 50
The discharge through a V-notch weir varies as_____?
46 / 50
The energy equation, E + (p/?) + (V2/2g) + gZ = constant (E = internal energy/mass), is applicable to_____?
47 / 50
Stoke?s equation is valid in the Reynolds number range___________?
48 / 50
The continuity equation_____?
49 / 50
The capillary rise of mercury is maximum in glass tube of dia ______ mm?
50 / 50
The discharge through a Venturimeter depends upon __________?
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