Fluid Mechanics and Thermodynamics Quiz

What is the formula for specific gravity (sg) of a fluid?

• sg = γ_fluid / 9.81 kN/m³

• sg = ρ_fluid / ρ_water

• sg = ρ_fluid / ρ_air,4C

• sg = ρ_fluid / 1000 kg/m³

What is the unit of pressure (p)?

• N/m²

• kg/m³

• Joule

• kN/m

What does the symbol ρ represent?

• Weight

• Density

• Volume

• Mass

What is the specific gravity of water at 4°C?

• 1000 kg/m³

• 1.0

• 9.81 kN/m³

• 0.9

What is the formula for kinetic energy (Ek)?

• Ek = m V

• Ek = m g z

• Ek = ½ m V²

• Ek = m + V

What is the relationship between pressure and height in a fluid?

• Δp = ρ g h

• Δp = ρ g

• Δp = g h

• Δp = ρ h

What is the unit of energy in the SI system?

• Pascal

• Joule

• Newton

• Watt

What is the definition of enthalpy?

• Energy in transition

• Total energy in a system

• Energy stored in a fluid

• Sum of internal energy and flow energy

What does the term 'adiabatic process' refer to?

• Constant pressure process

• Heat is removed from the system

• Heat is added to the system

• No heat transfer occurs

What is the formula for potential energy (Ep)?

• Ep = m + g

• Ep = ρ g V

• Ep = ½ m V²

• Ep = m g z