Fluid Mechanics for Chemical Quiz 3
1 / 50
Centrifugal pump can?t be used to pump _______?
2 / 50
Choose the set of pressure intensities that are equivalent ?
3 / 50
Differential manometer measures the_____?
4 / 50
Colebrook equation for friction factor in turbulent flow is given by, f-0.5 = -4 loge [(?/D) + (1.26/NRe ?F). It reduces to Nikuradse equation for a value of (?/D) equal to ___________?
5 / 50
Check valves are used________?
6 / 50
Capacity of a rotary gear pump can be varied by___________?
7 / 50
Choose the correct set of dimensions of viscosity that are equivalent (where, F, M, L, T are dimensions for force, mass, length and time respectively) ?
8 / 50
Cavitation occurs in a centrifugal pump when the suction pressure is_________?
9 / 50
Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about___________?
10 / 50
Creeping flow around a sphere is defined, when particle Reynolds number is_____?
11 / 50
Disc compensators are provided in large diameter fuel gas carrying pipelines to__________?
12 / 50
Dean number is concerned with the______?
13 / 50
Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, ? = surface tension of mercury)______?
14 / 50
Boundary layer separation occurs when the______?
15 / 50
Diaphragm valves are used for handling ________ fluids?
16 / 50
Check in a centrifugal pump is_________?
17 / 50
Cd for the orifice plate varies from _____?
18 / 50
Boundary layer thickness in laminar flow over a flat plate increases as(where, d = distance from the leading edge.) ?
19 / 50
Buckingham-? theorem states that in any physical problem including ?n? quantities having ?m? dimensions, the quantities can be arranged into ______ independent dimensionless parameters?
20 / 50
Co-efficient of velocity is _____ the coefficient of discharge?
21 / 50
Check valve is used for _________ flow?
22 / 50
Dimension of kinematic viscosity is_______?
23 / 50
Buoyant force___________?
24 / 50
Cavitation in a centrifugal pump can be avoided by keeping the___________?
25 / 50
Cd is always _______ Cc?
26 / 50
Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?
27 / 50
Dimension of surface tension is (where, F = force, L = length) ?
28 / 50
Critical velocity in a pipe flow__________?
29 / 50
Centrifugal pump is normally classified on the basis of the_________?
30 / 50
Centrifugal pumps as compared to reciprocating pumps___________?
31 / 50
Cp/Cv is termed as___________?
32 / 50
Differential manometer measures the______?
33 / 50
Cocks are used to control _____?
34 / 50
Dimension of absolute viscosity is__________?
35 / 50
Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the ________ decreases?
36 / 50
Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid_________?
37 / 50
Centrifugal compressors compared to reciprocating compressors___________?
38 / 50
Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) ?
39 / 50
Design of the casing of centrifugal pump should be such as to minimise the_________?
40 / 50
Brownian movement is prominent in the particle size range of ______ microns in case of settling of a particle in a fluid?
41 / 50
Cavitation can be prevented by_________?
42 / 50
Choking in case of pipe flow means that a_____?
43 / 50
Diaphragm pumps are used to transport__________?
44 / 50
Deformation drag, which is caused by widespread deformation of fluid around the immersed body______?
45 / 50
Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the________?
46 / 50
Centre of pressure in an immersed body is _______ the centre of gravity?
47 / 50
Curve III in the bellow diagram represents a/an_________?
48 / 50
Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement ?
49 / 50
Capacity of a hydraulic accumulator is defined in terms of maximum_______?
50 / 50
Capillary tube method of viscosity measurement is based on the _________?
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