WATER DISTRIBUTION SYSTEM OPERATION AND
MAINTENANCE TEST REVIEW QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | VERIFIED ANSWERS | BRAND
NEW VERSION!
What is the purpose of water distribution systems? Correct Answers To
deliver adequate quantities of water at sufficient pressure at all times
under continually changing conditions while at the same time protecting
water quality
What is the purpose of vacuum, pressure-relief, and pressure-reducing
valves? Correct Answers To prevent pipe damage from negative or
excessively high pressures
Under what conditions is the solid-sheeting shoring method used? When
it is necessary to Correct Answers excavate in materials that will not
stand in a vertical position
When making pipe extensions, why are wet taps preferred over dry taps?
Correct Answers Because any time the pressure in a pipeline is removed,
contamination may more easily enter that line
What problem can occur when air gets into the water in a pipeline and
the air collects forming pockets of air? Correct Answers Air pockets can
increase the resistance to flow or stop the flow of water completely
What is the advantage of the Venturi type of water meter? Correct
Answers extremely accurate at low flows
, What could be the source of supply for a water distribution system?
Correct Answers Purchased water connection, wells, treatment plant
clear well
Water distribution system mains are laid out in what types of systems?
Correct Answers Grid, loop, tree(branching)
What are the basic requirements of pipes for water distribution systems?
Correct Answers Adequate strength, durability, maximum corrosion
resistance, no adverse effect on water quality
What type of shores have been tested and approved by OSHA? Correct
Answers Air shores, cylinder shoring, hydraulic shores, screw jacks,
solid sheeting
Drinking water quality standards cover all potential chemicals that could
enter a water supply. True or False Correct Answers False
Coliform bacteria are considered pathogenic organisms. True or False
Correct Answers False
Chloramines are considered a more powerful disinfectant than chlorine.
True or False Correct Answers False
MAINTENANCE TEST REVIEW QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | VERIFIED ANSWERS | BRAND
NEW VERSION!
What is the purpose of water distribution systems? Correct Answers To
deliver adequate quantities of water at sufficient pressure at all times
under continually changing conditions while at the same time protecting
water quality
What is the purpose of vacuum, pressure-relief, and pressure-reducing
valves? Correct Answers To prevent pipe damage from negative or
excessively high pressures
Under what conditions is the solid-sheeting shoring method used? When
it is necessary to Correct Answers excavate in materials that will not
stand in a vertical position
When making pipe extensions, why are wet taps preferred over dry taps?
Correct Answers Because any time the pressure in a pipeline is removed,
contamination may more easily enter that line
What problem can occur when air gets into the water in a pipeline and
the air collects forming pockets of air? Correct Answers Air pockets can
increase the resistance to flow or stop the flow of water completely
What is the advantage of the Venturi type of water meter? Correct
Answers extremely accurate at low flows
, What could be the source of supply for a water distribution system?
Correct Answers Purchased water connection, wells, treatment plant
clear well
Water distribution system mains are laid out in what types of systems?
Correct Answers Grid, loop, tree(branching)
What are the basic requirements of pipes for water distribution systems?
Correct Answers Adequate strength, durability, maximum corrosion
resistance, no adverse effect on water quality
What type of shores have been tested and approved by OSHA? Correct
Answers Air shores, cylinder shoring, hydraulic shores, screw jacks,
solid sheeting
Drinking water quality standards cover all potential chemicals that could
enter a water supply. True or False Correct Answers False
Coliform bacteria are considered pathogenic organisms. True or False
Correct Answers False
Chloramines are considered a more powerful disinfectant than chlorine.
True or False Correct Answers False
