# Fluid Mechanics Questions and Answers

Our 1000+ Fluid Mechanics questions and answers focuses on all areas of Fluid Mechanics subject covering 100+ topics in Fluid Mechanics. These topics are chosen from a collection of most authoritative and best reference books on Fluid Mechanics. One should spend 1 hour daily for 2-3 months to learn and assimilate Fluid Mechanics comprehensively. This way of systematic learning will prepare anyone easily towards Fluid Mechanics interviews, online tests, examinations and certifications.

**Highlights**

– 1000+ Multiple Choice Questions & Answers in Fluid Mechanics with explanations.

– Every MCQ set focuses on a specific topic in Fluid Mechanics Subject.

**Who should Practice these Fluid Mechanics Questions?**

– Anyone wishing to sharpen their knowledge of Fluid Mechanics Subject.

– Anyone preparing for aptitude test in Fluid Mechanics.

– Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews).

– Anyone preparing for entrance examinations and other competitive examinations.

– All – Experienced, Freshers and Students.

**Here’s list of Questions & Answers on Fluid Mechanics Subject covering 100+ topics:**

#### 1. Properties of Fluids

The section contains questions and answers on fluid mechanics basics and properties, viscosity, vapor pressure, compressibility and bulk modulus, fluids types, surface tension, capillarity and thermodynamic properties.

#### 2. Pressure and Its Measurement

The section contains questions on pressure distribution in fluid, pressure measurement, pascals law and compression fluid pressure point.

#### 3. Hydrostatic Forces on Surfaces

The section contains questions and answers on hydrostatic force on plane area, pressure distribution in liquid, horizantal and inclined plane in liquid, total pressure and vertical plane surface.

#### 4. Buoyancy and Floatation

The section contains questions on buoyancy, metacenter and metacentric height, manometer, equilibrium conditions and atmospheric pressure and barometer.

Buoyancy Metacentre and Metacentric Height Conditions of Equilibrium of a Floating and Submerged Bodies |
Manometer Atmospheric Pressure and Barometer |

#### 5. Kinematics of Flow and Ideal Flow

The section contains questions on fluid flow types and methods, continuity equation & its dimensions, flow lines types, velocity and acceleration, vortex flow, important cases of potential and super imposed flow.

#### 6. Fluid Dynamics

The section contains questions on euler and bernoulli equations of motion, bernoulli applications, newtons first and second law, navier strokes equation, free liquid jet, impulse and moment of momentum equation.

Introduction, Euler’s & Bernoulli’s Equation of Motion Bernoulli’s Equation for Real Fluids & Applications of Bernoulli’s Equation Introduction to Fluid Dynamics Newton’s Second Law First Law of Thermodynamics |
Navier-Stokes Equations of Motion Free Liquid Jet Impulse Momentum Equation Moment of Momentum Equation |

#### 7. Orifices, Mouthpieces, Notches and Weirs

The section contains questions and answers on orifice, notches and weirs classification, large orifice flows, discharge over notches or weirs, time required to empty reservoir with notches and weirs.

#### 8. Viscous Flow & Turbulent Flow

The section contains questions and answers on shear stress in viscous and turbulent flow, piston movement, flow of viscous fluid through circular pipes and parallel plates, power absorption, universal velocity distribution, viscosity coefficient and frictional losses in pipes.

Shear Stress and Pressure Gradient Flow of Viscous Fluid Through Circular Pipes Flow of Viscous Fluid Between Two Parallel Plates Kinetic Energy Correction and Momentum Correction Factors Power Absorbed in Viscous Flow Loss of Head due to Friction in Viscous Flow |
Movement of Piston in Dash Pot Shear Stress In Turbulent Flow Universal Velocity Distribution Resistance of Smooth and Rough Pipes Methods of Determination of Coefficient of Viscosity Frictional Losses in Pipe Flow |

#### 9. Flow Through Pipes

The section contains questions on energy losses in pipes, hydraulic gradient, syphon, series and parallel pipes, pipes power transmission, nozzles flow, water hammer, minor energy losses and pipe network.

Loss of Energy in Pipes Hydraulic Gradient and Total Energy Line Syphon Pipes in Series Pipes in Parallel |
Power Transmission Through Pipes Minor Energy (Head) Losses Flow through Nozzles Water Hammer in pipes Pipe Network |

#### 10. Dimensional and Model Analysis

The section contains questions and answers on dimensional analysis methods, model analysis, similarities types and laws, testing on submerged bodies, moving fluid types and model classifications.

Derived Quantities and Dimensional Homogeneity Methods of Dimensional Analysis Model Analysis Similitude-Types of Similarities |
Types of Forces Acting in Moving Fluid Model Laws or Similarity Laws Model Testing of Partially Submerged Bodies Classification of Models |

#### 11. Boundary Layer Flow

The section contains questions on turbulent boundary layer and its analysis, boundary layer basics and drag force.

Turbulent Boundary Layer on a Flat Plate Analysis of Turbulent Boundary Layer Separation of Boundary Layer |
Concept of Boundary Layer Drag Force on a Flat Plate |

#### 12. Forces on Sub-merged Bodies

The section contains questions on drag on a sphere, drag and lift expression, lift development in circular cylinder and airfoil.

Force Exerted by a Flowing Fluid on a Stationary Body Expression for Drag and Lift Drag on a Sphere |
Development of Lift on a Circular Cylinder Development of Lift on an Airfoil |

#### 13. Compressible Flow

The section contains questions on thermodynamic relations, compressible flow equations, stagnation properties, sound velocity, compressible fluid through orifices and nozzles.

Thermodynamic Relations Basic Equations of Compressible Flow Velocity of Sound or Pressure Wave in a Fluid Stagnation Properties |
Area Velocity Relationship for Compressible Flow Flow of Compressible Fluid through Orifices and Nozzles Mass Rate of Flow of Compressible Flow |

#### 14. Flow in Open Channels

The sections covers questions on flow classifications, chezys formula, specific energy and its curves, hydraulic jump and gradually varied flow.

Classification of Flow in Channels Discharge through Open Channel by Chezy’s Formula Empirical Formulae for Value of Chezy’s Constant Most Economical Section of Channels |
Nonuniform Flow through Open Channels Specific Energy and Specific Energy Curve Hydraulic Jump or Standing Wave Gradually Varied Flow (G.V.F) |

#### 15. Impact of Jets and Jet Propulsion

The sections covers questions on exerted force by a fluid jet in stationary and moving flat plate and also stationary and moving curved vane, hinged plate force exerted by jet and jet propulsion.

Force Exerted by a Fluid Jet on a Stationary Flat Plate Force Exerted by a Fluid Jet on a Moving Flat Plate Force Exerted by a Fluid Jet on a Stationary Curved Vane |
Force Exerted by a Fluid Jet on a Moving Curved Vane Force Exerted by a Jet on Hinged Plate Jet Propulsion |

#### 16. Turbo Machinery

The sections covers questions on hydraulic turbines, pelton wheel, radial and axial flow reaction turbines, unit quantities, different types of turbines, centrifugal and reciprocating pump.

Classification of Hydraulic Turbines Pelton Wheel Radial Flow Reaction Turbines Axial Flow Reaction Turbines Unit Quantities |
Centrifugal Pump Reciprocating Pump Turbines Francis Turbine |

#### 17. Fluid System

The sections covers questions on air vessels, hydraulic press, accumulator, intensifier, ram, lift and crane, air lift and gear wheel pumps.

Air Vessels Hydraulic Press and Accumulator Hydraulic Intensifier and Hydraulic Ram |
Hydraulic Lift and Hydraulic Crane Air Lift Pump and Gear Wheel Pump |

Here’s the list of Best Reference Books in Fluid Mechanics.

**Wish you the best in your endeavor to learn and master Fluid Mechanics!**