drinking water math Flashcards
What is the primary purpose of water distribution systems?
To deliver potable water to consumers.
True or False: Water distribution systems only serve residential areas.
False
Fill in the blank: The main component of a water distribution system is the __________.
pipeline
What does the term ‘hydraulic pressure’ refer to in water distribution?
The force that moves water through the distribution system.
Multiple Choice: Which of the following is NOT a common material used for water pipes? A) PVC B) Copper C) Wood D) Ductile Iron
C) Wood
What is the formula to calculate flow rate in a pipe?
Flow rate = Cross-sectional area × Velocity
True or False: Gravity is often used to assist in water distribution in hilly areas.
True
What unit is commonly used to measure water pressure?
Pascals (Pa) or pounds per square inch (psi)
Fill in the blank: The __________ of a pipe affects the flow rate of water.
diameter
What is the difference between a water main and a service line?
A water main carries water to various locations, while a service line connects the main to individual properties.
Multiple Choice: Which factor does NOT affect water pressure in a distribution system? A) Pipe diameter B) Elevation C) Water temperature D) Pipe length
C) Water temperature
What does ‘head loss’ refer to in the context of water distribution?
The reduction in hydraulic energy as water flows through a system.
True or False: Larger pipes always result in lower flow rates.
False
Fill in the blank: The __________ is a device used to measure the flow of water in a distribution system.
flow meter
What is the main goal of water distribution system design?
To ensure adequate supply and pressure at all points of use.
Multiple Choice: What is the common range for residential water pressure? A) 10-20 psi B) 30-50 psi C) 40-80 psi D) 100-120 psi
C) 40-80 psi
What is a primary factor that affects the efficiency of a water distribution system?
Leakage in the pipes.
True or False: Water distribution systems require regular maintenance to function effectively.
True
Fill in the blank: The __________ is the point at which water is delivered to consumers.
tap
What is the purpose of a pressure reducing valve in a water distribution system?
To lower and stabilize water pressure before it reaches consumers.
Multiple Choice: Which of the following is a common method for calculating water demand? A) Historical usage B) Population growth C) Both A and B D) None of the above
C) Both A and B
True or False: Water quality is not a concern in water distribution systems.
False
What is the significance of water distribution modeling?
To simulate and optimize the performance of the water distribution system.
Fill in the blank: The __________ is a crucial metric for assessing the performance of a water distribution system.
reliability
What role do pumps play in water distribution systems?
They increase water pressure to move water through the system.
