FLUID MECHANICS FINAL PAPER TESTED QUESTIONS WITH VERIFIED ANSWERS COMPLETE STUDY SHEET

FLUID MECHANICS FINAL PAPER TESTED
QUESTIONS WITH VERIFIED ANSWERS
COMPLETE STUDY SHEET

●● Fluids
Answer: substance which deforms continuously, or flows when
subjected to shearing forces


●● Fluid statics
Answer: study of fluid at rest


●● Fluid kinematics
Answer: study of fluid at motion


●● Fluid dynamics
Answer: study of the effects of forces on fluid motion


●● Liquids
Answer: a type of fluid which has free surface, and a given mass
occupies given volume of a container


●● Gases

,Answer: subdivision of fluid which occupies all portions of the container
and follows gas law that gives relation between temperature, pressure,
and volume


●● Ideal fluid
Answer: fluid that does not resist shear stress


●● Newtonian fluid
Answer: stress versus strain rate curve is linear and passes through the
origin


●● Viscosity
Answer: the slope of stress vs strain graph for fluid


●● Plastic
Answer: shear stress must reach a certain minimum before flow
commences


●● Dilatant substance
Answer: viscosity increases with the rate of shear e.g. quicksand


●● Thixotropic substances
Answer: viscosity decreases with length of time shear force is applied

, ●● Rheopectic substances
Answer: viscosity increases with length of time shear force is applied


●● Density
Answer: ratio of mass to volume


●● Specific weight
Answer: ratio of weight to volume


●● Specific gravity
Answer: ratio of specific weight of a given fluid to the specific weight of
water at the standard reference temperature of 4 degrees celsius


●● Specific heat
Answer: property that describes the capacity of a substance to store
thermal energy


●● Specific volume
Answer: ratio of volem and density


●● Internal energy