WATER TREATMENT GRADE 4 EXAM
WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
which type of valve would be particularly useful for
throttling the flow of corrosive liquids
pinch valve
Water meter pits are usually used in
cold climates
fuel oil will permeate which type of pipe
polyethylene pipe
An ion exchange softener is treating a flow rate of 125 gpm.
what is the operating time in hours if the softener unit
treats 297000 gallons before it requires regeneration?
39.6 hr
in describing pump operation what type of curve shows the
relationship between power and capacity
P-Q curve
,What is Head Loss
energy used by water when moving from point to point
Static Suction Lift
Difference in water placement
What is Power
Work done in a given time
if a water system collects at least 40 samples per month for
the analyses of total coliforms, what percentage of total
coliform samples are acceptable for the system to remain in
compliance with the maximum contaminant level for total
coliforms
no more than 5%
water systems are required to achieve at least________
removal and or inactivation of viruses between a point
where the raw water is not subject to recontamination by
surface water runoff and a point downstream before or at
the first customer.
4 log
where are the sampling points located for required
samplings of organics (except THMs) in a community water
system
entry points to the distribution system
,where are the sampling points located for required sampling
of natural radionuclides in a community water system
each entry point to the system
continuous chlorine residual monitoring is required where
the water enters the distribution system under the SWTR
when the
population served is >3300 people.
a community water system must post the consumer
confidence report on a publicly accessible website if it
serves more than
100000 people
public water systems that cannot meet the required
removal of TOCs can comply if the source water TOC level is
________ calculated quarterly as a running annual average
<2.0 mg/L
the Surface water treatment rule does not specify which of
the following treatment technology
chloramine disinfection
a regulated organic contaminant concentration that exceeds
the MCL
is a teir 2 violation requiring public notification withing 30
days
, operators must balance satisfying regulations on the
amount of certain chlorinated organic compounds with
meeting disinfection limits
a water system using conventional filtration treatment does
not have to use enhanced coagulation to achieve the total
organic carbon percent removal if
the treated water quarterly running average TOC is less than
2.0 mg/L
the stage 1 DBPR established an MCL of _____ for TTHM (
total THMs)
.08 mg/L
the safe drinking water act defines a public water system as
a supply of piped water for human consumption that has at
least _______ service connections, or serves _______ or
more persons 60 or more days each year
15;25
under the enhanced coagulation requirement ls of the DBPR
treatment plants must remove specific percentages of total
organic carbon based on their source water total organic
carbon and what other factor
Alkalinity levels
the filter backwash recycle rule applies to what sizes of
systems
all sizes
WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
which type of valve would be particularly useful for
throttling the flow of corrosive liquids
pinch valve
Water meter pits are usually used in
cold climates
fuel oil will permeate which type of pipe
polyethylene pipe
An ion exchange softener is treating a flow rate of 125 gpm.
what is the operating time in hours if the softener unit
treats 297000 gallons before it requires regeneration?
39.6 hr
in describing pump operation what type of curve shows the
relationship between power and capacity
P-Q curve
,What is Head Loss
energy used by water when moving from point to point
Static Suction Lift
Difference in water placement
What is Power
Work done in a given time
if a water system collects at least 40 samples per month for
the analyses of total coliforms, what percentage of total
coliform samples are acceptable for the system to remain in
compliance with the maximum contaminant level for total
coliforms
no more than 5%
water systems are required to achieve at least________
removal and or inactivation of viruses between a point
where the raw water is not subject to recontamination by
surface water runoff and a point downstream before or at
the first customer.
4 log
where are the sampling points located for required
samplings of organics (except THMs) in a community water
system
entry points to the distribution system
,where are the sampling points located for required sampling
of natural radionuclides in a community water system
each entry point to the system
continuous chlorine residual monitoring is required where
the water enters the distribution system under the SWTR
when the
population served is >3300 people.
a community water system must post the consumer
confidence report on a publicly accessible website if it
serves more than
100000 people
public water systems that cannot meet the required
removal of TOCs can comply if the source water TOC level is
________ calculated quarterly as a running annual average
<2.0 mg/L
the Surface water treatment rule does not specify which of
the following treatment technology
chloramine disinfection
a regulated organic contaminant concentration that exceeds
the MCL
is a teir 2 violation requiring public notification withing 30
days
, operators must balance satisfying regulations on the
amount of certain chlorinated organic compounds with
meeting disinfection limits
a water system using conventional filtration treatment does
not have to use enhanced coagulation to achieve the total
organic carbon percent removal if
the treated water quarterly running average TOC is less than
2.0 mg/L
the stage 1 DBPR established an MCL of _____ for TTHM (
total THMs)
.08 mg/L
the safe drinking water act defines a public water system as
a supply of piped water for human consumption that has at
least _______ service connections, or serves _______ or
more persons 60 or more days each year
15;25
under the enhanced coagulation requirement ls of the DBPR
treatment plants must remove specific percentages of total
organic carbon based on their source water total organic
carbon and what other factor
Alkalinity levels
the filter backwash recycle rule applies to what sizes of
systems
all sizes
