FLUID MECHANICS ACTUAL TEST
QUESTIONS AND SOLUTIONS
COMPREHENSIVE REVIEW PACKAGE
●● What is density?
Answer: Mass per unit volume.
●● What is the density equation?
Answer: ρ = m/V
●● What is the SI unit of density?
Answer: kg/m³
●● What is specific gravity?
Answer: Ratio of fluid density to water density.
●● What is viscosity?
Answer: A fluid's resistance to flow.
●● What is the symbol for viscosity?
Answer: μ
, ●● What is the unit of viscosity?
Answer: Pa·s
●● What is shear stress?
Answer: Force per unit area acting parallel to a surface.
●● What is the viscosity equation?
Answer: τ = μ(du/dy)
●● What are intensive properties?
Answer: Properties independent of system size.
●● What are examples of intensive properties?
Answer: Pressure, density, temperature.
●● What are extensive properties?
Answer: Properties dependent on system size.
●● What are examples of extensive properties?
Answer: Mass, volume, energy.
QUESTIONS AND SOLUTIONS
COMPREHENSIVE REVIEW PACKAGE
●● What is density?
Answer: Mass per unit volume.
●● What is the density equation?
Answer: ρ = m/V
●● What is the SI unit of density?
Answer: kg/m³
●● What is specific gravity?
Answer: Ratio of fluid density to water density.
●● What is viscosity?
Answer: A fluid's resistance to flow.
●● What is the symbol for viscosity?
Answer: μ
, ●● What is the unit of viscosity?
Answer: Pa·s
●● What is shear stress?
Answer: Force per unit area acting parallel to a surface.
●● What is the viscosity equation?
Answer: τ = μ(du/dy)
●● What are intensive properties?
Answer: Properties independent of system size.
●● What are examples of intensive properties?
Answer: Pressure, density, temperature.
●● What are extensive properties?
Answer: Properties dependent on system size.
●● What are examples of extensive properties?
Answer: Mass, volume, energy.