REHS Examination Review Course
Workbook Chapter 1 Water fully solved
to pass
______________ is the zone where gravity pulls water to a depth where all openings in soil or
rock are filled with water - correct answer ✔✔Saturated Zone
_____________ is the top of the saturated zone. May rise or falls according to season or
weather - correct answer ✔✔Water Table
_________ is part of the unsaturated zone. The unsaturated zone is directly below the surface
and contains some water - correct answer ✔✔Vadose Zone
_____________ is a well that goes thru the confining layer. some of these wells may be
pressurized causing water to rise through the limiting layer and above the ground level - correct
answer ✔✔Artesian Well
__________ is a system for the provision to the the public of water for human consumption
through pipes or other constructed conveyance, if such system has at least ________
connections or regularly serves at least _______ people - correct answer ✔✔public water
system, 15, 25
_____________is the main federal law that ensures the quality of Americans' drinking water -
correct answer ✔✔Safe Drinking Water Act
____________ are public water sources that do not serve a permanent resident population.
there are two types _______ and ___________ - correct answer ✔✔NON community water
systems, Transient, and non transient
, _________________________________________A public water system that regularly supplies
water to at least 25 of the same people at least six months per year - correct answer ✔✔non
transient non community water source
_______ includes facilities such as roadside stops, commercial campgrounds, hotels, and
restaurants that have their own water supplies and serve a transient population at least 60 days
of the month - correct answer ✔✔Transient non community water source
_______________ is an intestinal infection marked by abdominal cramps, bloating, nausea and
bouts of watery diarrhea._________________ infection is caused by a microscopic parasite that
is found worldwide, especially in areas with poor sanitation and unsafe water - correct answer
✔✔Giardia
________ are finely dispersed solids suspended in water by repelling electrical charges. - correct
answer ✔✔colloids
Coagulates are used to cause attractions to form larger particles called_______________ -
correct answer ✔✔flocs
_____________ is the first step in the water filtration process - correct answer ✔✔pre-
treatment
______________ can be done by chlorination/o3 micro straining, or aeration - correct answer
✔✔pre-treatment in water filtration
______________ is the second step in the water filtration process - correct answer
✔✔coagulation
Workbook Chapter 1 Water fully solved
to pass
______________ is the zone where gravity pulls water to a depth where all openings in soil or
rock are filled with water - correct answer ✔✔Saturated Zone
_____________ is the top of the saturated zone. May rise or falls according to season or
weather - correct answer ✔✔Water Table
_________ is part of the unsaturated zone. The unsaturated zone is directly below the surface
and contains some water - correct answer ✔✔Vadose Zone
_____________ is a well that goes thru the confining layer. some of these wells may be
pressurized causing water to rise through the limiting layer and above the ground level - correct
answer ✔✔Artesian Well
__________ is a system for the provision to the the public of water for human consumption
through pipes or other constructed conveyance, if such system has at least ________
connections or regularly serves at least _______ people - correct answer ✔✔public water
system, 15, 25
_____________is the main federal law that ensures the quality of Americans' drinking water -
correct answer ✔✔Safe Drinking Water Act
____________ are public water sources that do not serve a permanent resident population.
there are two types _______ and ___________ - correct answer ✔✔NON community water
systems, Transient, and non transient
, _________________________________________A public water system that regularly supplies
water to at least 25 of the same people at least six months per year - correct answer ✔✔non
transient non community water source
_______ includes facilities such as roadside stops, commercial campgrounds, hotels, and
restaurants that have their own water supplies and serve a transient population at least 60 days
of the month - correct answer ✔✔Transient non community water source
_______________ is an intestinal infection marked by abdominal cramps, bloating, nausea and
bouts of watery diarrhea._________________ infection is caused by a microscopic parasite that
is found worldwide, especially in areas with poor sanitation and unsafe water - correct answer
✔✔Giardia
________ are finely dispersed solids suspended in water by repelling electrical charges. - correct
answer ✔✔colloids
Coagulates are used to cause attractions to form larger particles called_______________ -
correct answer ✔✔flocs
_____________ is the first step in the water filtration process - correct answer ✔✔pre-
treatment
______________ can be done by chlorination/o3 micro straining, or aeration - correct answer
✔✔pre-treatment in water filtration
______________ is the second step in the water filtration process - correct answer
✔✔coagulation
