WATER DISTRIBUTION TEST 2 TEST WITH LATEST
UPDATED (QUESTIONS AND ANSWERS) ALREADY PASSED!
What does a C value of 140 means for a pipe? Correct Answers The pipe
interior is very smooth.
Which primary contaminant causes Blue Baby Syndrome? Correct
Answers Nitrate.
What is a nutating disc? Correct Answers Type of a water meter for a
small-diameter domestic service.
What causes hardness in water? Correct Answers Magnesium and
calcium.
Which of the following is a confined aquifer with groundwater under
positive pressure? Correct Answers Artesian.
____________ is an imaginary surface to which groundwater rises inder
hydrostatic pressure in wells. Correct Answers Piezometric surface.
If chlorine was added to water, but there is no chlorine residual, which
statment is true? Correct Answers Chlorine demand has not been met.
What is true about chlorine gas? Correct Answers Chlorine has is 2.5
times heavier then air.
, When is a ladder required in a trench? Correct Answers When the trench
is 4 feet or deeper?
What is the definition of diurnal pattern? Correct Answers Daily pattern
of water demand.
What is formed when free chlorine reacts with organic matter? Correct
Answers Trihalomethane
What could happen if a valve is closed too rapidly? Correct Answers
Water hammer.
Which of the following best describe Tier 1 of the Public Notification
Rule? Correct Answers A violation that poses an immediate threat to
human health. The public must be notify within 24 hours.
What is the typical concentration (strength) of bulk sodium hypochlorite
solution for desinfecting a water supply Correct Answers 12.5%
What should you do if your drop a sample container and the lid? Correct
Answers Get a new container and lid.
Why is trihalomethane considered a threat to human health? Correct
Answers Carcinogen
UPDATED (QUESTIONS AND ANSWERS) ALREADY PASSED!
What does a C value of 140 means for a pipe? Correct Answers The pipe
interior is very smooth.
Which primary contaminant causes Blue Baby Syndrome? Correct
Answers Nitrate.
What is a nutating disc? Correct Answers Type of a water meter for a
small-diameter domestic service.
What causes hardness in water? Correct Answers Magnesium and
calcium.
Which of the following is a confined aquifer with groundwater under
positive pressure? Correct Answers Artesian.
____________ is an imaginary surface to which groundwater rises inder
hydrostatic pressure in wells. Correct Answers Piezometric surface.
If chlorine was added to water, but there is no chlorine residual, which
statment is true? Correct Answers Chlorine demand has not been met.
What is true about chlorine gas? Correct Answers Chlorine has is 2.5
times heavier then air.
, When is a ladder required in a trench? Correct Answers When the trench
is 4 feet or deeper?
What is the definition of diurnal pattern? Correct Answers Daily pattern
of water demand.
What is formed when free chlorine reacts with organic matter? Correct
Answers Trihalomethane
What could happen if a valve is closed too rapidly? Correct Answers
Water hammer.
Which of the following best describe Tier 1 of the Public Notification
Rule? Correct Answers A violation that poses an immediate threat to
human health. The public must be notify within 24 hours.
What is the typical concentration (strength) of bulk sodium hypochlorite
solution for desinfecting a water supply Correct Answers 12.5%
What should you do if your drop a sample container and the lid? Correct
Answers Get a new container and lid.
Why is trihalomethane considered a threat to human health? Correct
Answers Carcinogen
