FLUID PROPERTIES

Question 1

liquid or gas substance capable of flowing

Answer 1

FLUID

Question 2

possess particles that easily move and change their relative position without a separation of the mass, and they offer practically no resistance to change in form

Answer 2

FLUID

Question 3

fluids that have little resistance to change either in form or volume and occupy all the space in which it is contained

Answer 3

GASES

Question 4

fluids that offer great resistance to change in volume and occupy a definite portion in which it is contained

Answer 4

LIQUIDS

Question 5

fluids that have no viscosity, are incompressible, no resistance to shear, no eddy currents, and no friction between moving surfaces

Answer 5

IDEAL FLUIDS

Question 6

fluids that are compressible, have non-uniform velocity distributions, and have friction and turbulence in flow

Answer 6

REAL FLUIDS

Question 7

viscous real fluids and whose shear stresses are a linear function of the fluid strain

Answer 7

NEWTONIAN FLUIDS

Question 8

real fluids like pastes, gels, electrolyte solutions, slurries, and etc

Answer 8

NON-NEWTONIAN FLUIDS

Question 9

mass per unit volume of a substance

Answer 9

DENSITY

Question 10

weight per volume of a substance

Answer 10

SPECIFIC WEIGHT

Question 11

quantitive measure of the amount of matter in a given body

Answer 11

MASS

Question 12

known as Relative Density

Answer 12

SPECIFIC GRAVITY

Question 13

ratio of the density or specific weight of a substance to the density or specific weight of some other standard substance

Answer 13

SPECIFIC GRAVITY

Question 14

volume per unit mass of a substance

Answer 14

SPECIFIC VOLUME

Question 15

reciprocal of mass density

Answer 15

SPECIFIC VOLUME

Question 16

fluid’s resistance to flow or the property of the fluid to resist shear deformation

Answer 16

VISCOSITY

Question 17

a fluid that has no viscosity and incompressible

Answer 17

PERFECT FLUID

Question 18

ratio of the dynamic viscosity of the fluid to the mass density

Answer 18

KINEMATIC VISCOSITY

Question 19

effect of cohesion between particles of the liquid at its free surface

Answer 19

SURFACE TENSION

Question 20

behavior of liquid in a thin-bore tube

Answer 20

CAPILLARITY

Question 21

rise and fall of liquid in a capillary tube

Answer 21

CAPILLARY ACTION

Question 22

cause by surface tension between the liquid and a vertical solid

Answer 22

CAPILLARITY

Question 23

attractive force between molecules of different substances

Answer 23

ADHESION

Question 24

attractive force between molecules of the same substance

Answer 24

COHESION

Question 25

curve surface of liquid in a capillary tube

Answer 25

MENISCUS

Question 26

pressure exerted by the atmosphere on every surface with which it comes in contact

Answer 26

BAROMETRIC PRESSURE

Question 27

pressure measured by barometer

Answer 27

ATMOSPHERIC PRESSURE

Question 28

constants of atmospheric pressure

Answer 28

1 atm = 101.325 kPa = 14.7 psi = 760mmHg

Question 29

pressure measured above absolute zero

Answer 29

ABSOLUTE PRESSURE

Question 30

formula for absolute pressure

Answer 30

Pabs = Pgage + Patm

Question 31

pressure measured by means of gages above or below atmospheric level

Answer 31

GAGE PRESSURE

Question 32

measure of the resistance of a fluid to shear or angular deformation

Answer 32

ABSOLUTE OR DYNAMIC VISCOSITY

Question 33

property of the liquid due to both cohesion and adhesion

Answer 33

CAPILLARITY

Question 34

pressure exerted by the vapor as evaporation of the liquid takes place within a closed space

Answer 34

VAPOR PRESSURE

Question 35

dimensionless number which is the ratio of the forces of inertia to viscous forces of fluids

Answer 35

REYNOLD'S NUMBER

Question 36

type of fluid flow in which the fluid travels smoothly or in regular paths

Answer 36

LAMINAR FLOW

Question 37

type of fluid flow in which the fluid undergoes irregular fluctuations, or mixing, in contrast to laminar flow

Answer 37

TURBULENT FLOW

Question 38

mixture of laminar and turbulent flow, with turbulence in the center of the pipe, and laminar flow near the edges

Answer 38

TRANSITIONAL FLOW

Question 39

differences of Reynold's Number according to types of flow

Answer 39

LAMINAR - RE < or = to 2000 TURBULENT - RE > 4000 TRANAITIONAL - 2000 < RE < or = to 4000