What is fluid?
A Liquid
C Gas
C Both B and C
D Solid
Which of these is a property of fluids?
A Hardness
B Rigidity
C Viscosity
D Malleability
What does Bernoulli’s principle relate to?
A Pressure difference
B Fluid velocity
C Energy conservation
D All of the above
What does the continuity equation state?
A Mass is conserved
B Pressure is constant
C Velocity increases
D Energy is conserved
Which device measures fluid pressure?
A Manometer
B Flow nozzle
C Venturimeter
D Pitot tube
What is Reynolds number used to predict?
A Fluid density
B Flow type
C Fluid pressure
D Fluid velocity
Which type of flow is characterized by smooth layers?
A Steady flow
B Turbulent flow
C Laminar flow
D Compressible flow
What causes cavitation in fluids?
A Low pressure
B High viscosity
C High temperature
D High velocity
What is the effect of increasing viscosity on fluid flow?
A Increases flow rate
B Increases turbulence
C No effect
D Decreases flow rate
Which of the following is a type of fluid measurement device?
A Pump
B Siphon
C Venturimeter
D Turbine
What is drag in fluid dynamics?
A Resistance to motion
B Fluid velocity
C Fluid density
D Pressure difference
What does the term “boundary layer” refer to?
A Turbulent flow
B Flow near a surface
C Flow inside pipes
D Fluid viscosity
What does CFD stand for in fluid mechanics?
A Compressible Fluid Dynamics
B Continuous Flow Dynamics
C Computational Fluid Dynamics
D Circular Fluid Distribution
What is an orifice in fluid mechanics?
A Pressure relief valve
B Flow measurement device
C High‐velocity nozzle
D Fluid storage tank
What does the term “water hammer” describe?
A Pipe burst
B Flow instability
C Cavitation effect
D Sudden pressure change