What does Bernoulli’s equation express?
A Flow rate
B Energy conservation
C Pressure change
D Pressure and velocity
What does the Reynolds number help determine?
A Flow type
B Fluid density
C Flow velocity
D Pressure loss
Which device measures the velocity of fluid?
A Manometer
B Venturimeter
C Pitot tube
D Orifice meter
What is the primary cause of drag in fluid flow?
A Fluid density
B Pressure difference
C Viscosity
D Temperature change
What does the continuity equation express?
A Mass conservation
B Energy loss
C Pressure gradient
D Fluid density
What is a Venturimeter used for?
A Measure velocity
B Measure pressure
C Measure flow rate
D Measure density
What is cavitation in fluid flow?
A Flow separation
B Pressure drop
C Fluid velocity change
D Vapor bubble formation
What does dimensional analysis help with in fluid mechanics?
A Increase flow rate
B Predict fluid behavior
C Measure viscosity
D Calculate pressure
What is the primary force acting on a fluid at rest?
A Surface tension
B Inertial force
C Viscosity
D Gravitational force
What is laminar flow characterized by?
A Smooth flow
B Random motion
C Irregular turbulence
D High velocity
What type of flow occurs in large pipes at high velocities?
A Steady flow
B Pressure distribution
C Turbulent flow
D Laminar flow
What does a manometer measure?
A Measure velocity
B Pressure difference
C Flow resistance
D Fluid density
What is an orifice used for?
A Measure flow rate
B Increase velocity
C Measure pressure
D Decrease turbulence
What type of flow is characterized by chaotic fluid motion?
A Laminar flow
B Steady flow
C Turbulent flow
D Subsonic flow
What does the term “boundary layer” refer to in fluid flow?
A Fluid velocity change
B Turbulent region
C Pressure drop
D Flow near a surface