In fluid mechanics, continuity equation for steady flow states: A F = ma B A₁v₁ = A₂v₂ (for incompressible flow) C E = mc² D PV = nRT ✓ Correct Answer: Option B Conservation of mass: ρ₁A₁v₁ = ρ₂A₂v₂. For incompressible: A₁v₁ = A₂v₂. Practice FE Exam Prep Quizzes → Browse All Questions Study Flashcards