NEHA - Chapter 4 Exam Questions &
Answers (Grade A+)
Potable water -
correct answer ✅water that may be consumed in any desired
aount without concern for advese effects on heath
Potable water management -
correct answer ✅the science and practice of protecting surface
water and groundwater resources used for the production of
drinking water
Public water system -
correct answer ✅a system for the provision to the public of piped
water for human consumption, if such a system has at least 15
service connections, or regularly serves an average of at least 25
individuals daily at least 60 days out of the year
Microbiological quality of potabe water -
correct answer ✅is typically expressed in concentration,
frequency, or presence/absense of a particular species of bacteria
What is indicative of a failure in the treatment plant or subsequent
pollution of the treated water? -
correct answer ✅very low concentrations of fecal coliform bacteria
,NEHA - Chapter 4 Exam Questions &
Answers (Grade A+)
The _____ is the primary Fedeal agency charged with ensuring the
safety of the public's drinking water under the Safe Drinking Water
Act (SDWA) -
correct answer ✅EPA (Environmental Protection Agency)
Maximum contaminant level (MCL) -
correct answer ✅indicates the maximum permissible level
(concentration) of a contaminant in water that is delivered to any
userof a public water system
hydrological cycle -
correct answer ✅the constant movement of water above, on, and
below the earth's surface
What are two types of water spply surfaces -
correct answer ✅surface and ground water
Surface water -
correct answer ✅a term used to describe water which is open to
the atmosphere and subject to surface runoff. (ex. lakes, reserviors,
streams, ponds, rivers, and creek supplies) (always require some
type of treatment before they may be considered potable)
, NEHA - Chapter 4 Exam Questions &
Answers (Grade A+)
Quality of the surface water depends on? -
correct answer ✅the watershed, area drained, land use, location
and source of natural and man-made pollution, and the natural
agencies of purification
Zone of satuation -
correct answer ✅where the water that drains downward finally
reaches a level, or zone, at which all of the openings to voids in the
earth's materials are filled with water
Groundwater -
correct answer ✅water in the zone of saturation
________ constitutes a significant source of water in most of the
United States -
correct answer ✅Groundwater
What are some examples of underground or subsurface water
sources? -
correct answer ✅dug, bored, driven, and drilled wells, or earthen
springs
Answers (Grade A+)
Potable water -
correct answer ✅water that may be consumed in any desired
aount without concern for advese effects on heath
Potable water management -
correct answer ✅the science and practice of protecting surface
water and groundwater resources used for the production of
drinking water
Public water system -
correct answer ✅a system for the provision to the public of piped
water for human consumption, if such a system has at least 15
service connections, or regularly serves an average of at least 25
individuals daily at least 60 days out of the year
Microbiological quality of potabe water -
correct answer ✅is typically expressed in concentration,
frequency, or presence/absense of a particular species of bacteria
What is indicative of a failure in the treatment plant or subsequent
pollution of the treated water? -
correct answer ✅very low concentrations of fecal coliform bacteria
,NEHA - Chapter 4 Exam Questions &
Answers (Grade A+)
The _____ is the primary Fedeal agency charged with ensuring the
safety of the public's drinking water under the Safe Drinking Water
Act (SDWA) -
correct answer ✅EPA (Environmental Protection Agency)
Maximum contaminant level (MCL) -
correct answer ✅indicates the maximum permissible level
(concentration) of a contaminant in water that is delivered to any
userof a public water system
hydrological cycle -
correct answer ✅the constant movement of water above, on, and
below the earth's surface
What are two types of water spply surfaces -
correct answer ✅surface and ground water
Surface water -
correct answer ✅a term used to describe water which is open to
the atmosphere and subject to surface runoff. (ex. lakes, reserviors,
streams, ponds, rivers, and creek supplies) (always require some
type of treatment before they may be considered potable)
, NEHA - Chapter 4 Exam Questions &
Answers (Grade A+)
Quality of the surface water depends on? -
correct answer ✅the watershed, area drained, land use, location
and source of natural and man-made pollution, and the natural
agencies of purification
Zone of satuation -
correct answer ✅where the water that drains downward finally
reaches a level, or zone, at which all of the openings to voids in the
earth's materials are filled with water
Groundwater -
correct answer ✅water in the zone of saturation
________ constitutes a significant source of water in most of the
United States -
correct answer ✅Groundwater
What are some examples of underground or subsurface water
sources? -
correct answer ✅dug, bored, driven, and drilled wells, or earthen
springs
