What causes water hammer in pipelines?
A High velocity
B Sudden valve closure
C Fluid density
D Pressure drop
What is surge analysis used for?
A Pressure prediction
B Flow rate measurement
C Pressure fluctuation study
D Velocity control
What does computational fluid dynamics (CFD) help with?
A Measure viscosity
B Predict flow behavior
C Calculate flow rate
D Measure pressure
What is the purpose of a turbine in fluid systems?
A Measure velocity
B Generate power
C Decrease pressure
D Increase fluid density
What is the primary function of a siphon?
A Pump water
B Measure flow rate
C Control pressure
D Transfer fluid
What does flow visualization help with?
A Predict flow rate
B Observe flow patterns
C Measure pressure
D Analyze turbulence
What is discharge measurement used for?
A Control flow
B Measure velocity
C Quantify fluid flow
D Calculate viscosity
What is the main principle behind CFD simulations?
A Pressure calculation
B Fluid speed
C Boundary layer analysis
D Numerical approximation
What is the key factor that determines flow resistance in pipes?
A Pipe length
B Flow resistance
C Pipe diameter
D Fluid density
What is the effect of high velocity on fluid flow?
A Increases drag
B Reduces turbulence
C Increases viscosity
D Reduces pressure
What type of flow does CFD typically analyze?
A Laminar flow
B Turbulent flow
C Both B and C
D Compressible flow
What is the primary factor affecting cavitation?
A High pressure
B Low pressure
C Low temperature
D High viscosity
What is the relationship between flow velocity and pressure in Bernoulli’s equation?
A Directly proportional
B Unrelated
C Dependent on temperature
D Inversely proportional
What is the main use of a pump in fluid systems?
A Decrease pressure
B Increase velocity
C Increase pressure
D Decrease turbulence
What is the primary cause of drag in fluid flow?
A Object shape
B Fluid temperature
C Fluid density
D Object material