Water Treatment ch 2 Flashcards
(32 cards)
The energy crisis and water shortages are linked together
T or F
True
Both animal life and plant life depend of water for survival
T or F
True
Large cities may obtain their raw water supply from a stream or river into which the treated wastewater from an upstream city has been discharged
T or F
True
Laboratories can easily detect in water samples most of the new chemical that are developed each year
T or F
False
Acid rain is formed by the evaporation of acid waters from mine drainage
T or F
False
Precipitation is high in bacterial count
T or F
False
Color in water is objectionable mainly from the standpoint of health
T or F
False
The specific disease-producing organisms present in water are easily identified
T or F
False
Clear water is usually safe to drink
T or F
False
Running water usually purifies itself to drinking water quality within a reasonable distance
T or F
False
Sources of contamination of water supplies include
a) acid rain
b) industrial waste discharges
c) intrusion of seawater in groundwater basins
d) mineral residues from irrigation
e) salt from de-icing highways
a) acid rain
b) industrial waste discharges
c) intrusion of seawater in groundwater basins
d) mineral residues from irrigation
e) salt from de-icing highways
Sources of groundwater contamination include
a) agricultural drainage
b) seawater intrusion
c) seepage from septic tank leaching systems
d) seepage from improper disposal of hazardous wastes
e) surface runoff into wells
a) agricultural drainage
b) seawater intrusion
c) seepage from septic tank leaching systems
d) seepage from improper disposal of hazardous wastes
e) surface runoff into wells
The basic types of water rights are called
a) acquired
b) appropriative
c) beneficial
d) prescriptive
e) riparian
b) appropriative
d) prescriptive
e) riparian
For purposes of discussion, surface water supplies may be divided into which of the following classes?
a) artesian aquifers
b) lakes
c) reservoirs
d) rivers
e) wells
b) lakes
c) reservoirs
d) rivers
diseases that may be spread through a water supply include
a) chicken pox
b) dysentery
c) giardiasis
d) smallpox
e) typhoid fever
b) dysentery
c) giardiasis
e) typhoid fever
Typical uses of reclaimed water include
a) crop irrigation
b) drinking
c) industrial reuse
d) landscape impoundments
e) landscape irrigation
a) crop irrigation
c) industrial reuse
d) landscape impoundments
e) landscape irrigation
When conducting a sanitary survey, which of the following items would pertain to groundwater supply?
a) distance to sources of pollution
b) nature of soil
c) slope of ground surface
d) slope of water table
e) well construction
a) distance to sources of pollution
b) nature of soil
c) slope of ground surface
d) slope of water table
e) well construction
When conducting a sanitary survey, which of the following items would pertain to a water supply in a lake?
a) adequacy of supply as to quantity
b) algae growth potential
c) normal period of detention
d) protective measures in connection with watershed use
e) wind direction
a) adequacy of supply as to quantity
b) algae growth potential
c) normal period of detention
d) protective measures in connection with watershed use
e) wind direction
Items requiring protective measures in watersheds that serve as the source of a water supply include control of
a) disposal of drains
b) fishing
c) ice cutting
d) sanitary landfills
e) swimming
a) disposal of drains
b) fishing
c) ice cutting
d) sanitary landfills
e) swimming
Which types of substances may alter the quality of water as it moves over or below the surface of the earth?
a) biological
b) chemical
c) epidemiological
d) physical
e) radiological
a) biological
b) chemical
d) physical
e) radiological
Turbidity in water results from the presence of
a) finely divided organic material
b) hardness
c) pH
d) plankton
e) suspended material
a) finely divided organic material
d) plankton
e) suspended material
Most individuals find that water having a temperature between _____ is most palatable
a) 30 to 40 F
b) 40 to 50 F
c) 50 to 60 F
d) 60 to 70 F
e) 70 to 80 F
c) 50 to 60 F
The process by which water vapor is released to the atmosphere by living plants called
a) evaporation
b) hydrologic cycle
c) infiltration
d) precipitation
e) transportation
e) transportation
Water quality characteristics of surface water supplies include
a) absence of color
b) freedom from microbial contamination
c) high concentrations of dissolved gases
d) suspended solids
e) turbidity
d) suspended solids
e) turbidity
