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