Fluid Mechanics MCQ
Q1. What is the SI unit of dynamic viscosity?
π View ExplanationQ2. The Reynolds number helps predict:
π View ExplanationQ3. In fluid flow, Bernoulliβs equation represents the conservation of:
π View ExplanationQ4. What is the critical Reynolds number for flow in a pipe?
π View ExplanationQ5. The flow where fluid layers slide past one another smoothly is called:
π View ExplanationQ6. The ratio of inertial force to viscous force is:
π View ExplanationQ7. What does the continuity equation express?
π View ExplanationQ8. The no-slip boundary condition implies:
π View ExplanationQ9. Pascalβs law relates to:
π View ExplanationQ10. Which instrument measures pressure in fluids?
π View ExplanationQ11. Hydrostatic pressure at depth h in a fluid is:
π View ExplanationQ12. Drag force experienced by an object moving through fluid depends on:
π View ExplanationQ13. Flow in which velocity at a point does not change with time is:
π View ExplanationQ14. Hydraulic diameter is used to characterize flow in:
π View ExplanationQ15. Kinematic viscosity is:
π View ExplanationQ16. The boundary layer is the region where:
π View ExplanationQ17. What is the significance of Mach number?
π View ExplanationQ18. Froude number is relevant in:
π View ExplanationQ19. In turbulent flow, velocity fluctuations occur:
π View ExplanationQ20. Poiseuilleβs law describes:
π View ExplanationQ21. Manometer fluid should have:
π View ExplanationQ22. Surface tension arises due to:
π View ExplanationQ23. Which theory explains the velocity profile in laminar flow?
π View ExplanationQ24. A Venturi meter measures:
π View ExplanationQ25. Hydraulic jump occurs when:
π View ExplanationQ26. Which dimensionless number relates inertial to gravitational forces?
π View ExplanationQ27. The velocity of fluid molecules near a stationary wall is:
π View ExplanationQ28. Incompressible flow assumes:
π View ExplanationQ29. Which parameter affects the lift generation on a wing?
π View ExplanationQ30. The transition from laminar to turbulent flow is influenced by:
π View ExplanationQ31. A pitot tube measures:
π View ExplanationQ32. Porosity of a medium is:
π View ExplanationQ33. Newtonian fluids have:
π View ExplanationQ34. Turbulent kinetic energy is dissipated mainly by:
π View ExplanationQ35. The Prandtl number is the ratio of:
π View Explanation
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