WATER DISTRIBUTION: DISTRIBUTION SYSTEM
COMPONENTS TEST WITH LATEST UPDATED (QUESTIONS
AND ANSWERS) ALREADY PASSED!
What type of mechanical pipe cleaning unit has high-carbon spring-steel
blades? Correct Answers Metal scrappers
What will the loss of pressure in a water system possibly cause besides
compromising firefighting capabilities? Correct Answers Bacterial
contamination
What valves are most often used where pressure is relatively high and
positive shutoff is required, such as the discharge of a high-lift pump?
Correct Answers Large plug
What is it best to have to prevent the collapse of a pipe when it is being
emptied? Correct Answers Air-and-vacuum relief valve
What have major impacts on the reliability of the distribution system to
deliver an uninterrupted supply? Correct Answers Main break
frequencies, Breakdown of distribution pumps, and Power outages
What backflow prevention device is, at a minimum, required at the
potable meter for domestic water booster pumps? Correct Answers
Double check valve
What is the purpose of a check valve? Correct Answers To control the
direction of flow
, What is it best to use to determine the hydraulic grade line? Correct
Answers Pressure gauges
Where would be the best place for hydrants to be located? Correct
Answers Near street intersections
In what unit does the most common meter register record the flow?
Correct Answers Cubic feet or gallons
Which type of meter sends an electrical signal to a remote register
mounted outside the building after a particular amount of water is used?
Correct Answers Electrical pulse generator
How are distribution pump operations controlled? Correct Answers
System pressure
What are the main distribution system performance categories that are
included in the distribution system operator objective? Correct Answers
Water quality and reliability
What should an operator inspect first if a reduced pressure zone
backflow preventer leaks at the vent? Correct Answers The first check
valve
COMPONENTS TEST WITH LATEST UPDATED (QUESTIONS
AND ANSWERS) ALREADY PASSED!
What type of mechanical pipe cleaning unit has high-carbon spring-steel
blades? Correct Answers Metal scrappers
What will the loss of pressure in a water system possibly cause besides
compromising firefighting capabilities? Correct Answers Bacterial
contamination
What valves are most often used where pressure is relatively high and
positive shutoff is required, such as the discharge of a high-lift pump?
Correct Answers Large plug
What is it best to have to prevent the collapse of a pipe when it is being
emptied? Correct Answers Air-and-vacuum relief valve
What have major impacts on the reliability of the distribution system to
deliver an uninterrupted supply? Correct Answers Main break
frequencies, Breakdown of distribution pumps, and Power outages
What backflow prevention device is, at a minimum, required at the
potable meter for domestic water booster pumps? Correct Answers
Double check valve
What is the purpose of a check valve? Correct Answers To control the
direction of flow
, What is it best to use to determine the hydraulic grade line? Correct
Answers Pressure gauges
Where would be the best place for hydrants to be located? Correct
Answers Near street intersections
In what unit does the most common meter register record the flow?
Correct Answers Cubic feet or gallons
Which type of meter sends an electrical signal to a remote register
mounted outside the building after a particular amount of water is used?
Correct Answers Electrical pulse generator
How are distribution pump operations controlled? Correct Answers
System pressure
What are the main distribution system performance categories that are
included in the distribution system operator objective? Correct Answers
Water quality and reliability
What should an operator inspect first if a reduced pressure zone
backflow preventer leaks at the vent? Correct Answers The first check
valve
