CWEA Collections Grade 2 Practice Test
"Spring Blades" are a kind of tool used with: - ANS-Power Rodder
A clogged impeller can reason a pump to supply much less than its predicted rate of discharge,
real or false? - ANS-True
A float of 650 gpm could be how many MGD? - ANS-650 gpm x (1440 min / 1 day) = 936000
gpd
936000 x (1 MG / one million gal) = 0.936 MGD
A man or woman who completes a education software in accordance with the requirements of
Title 8, Calif. Code of Regulations, Minimum Guidelines of the Common Ground Alliance is
taken into consideration a Qualified Person, true or false? - ANS-True
A wet properly 20 ft in diameter is packed with water to a intensity of 10 ft. How many gallons
does the tank comprise? - ANS-Volume = zero.785 x Diameter x Diameter x Height
Volume = 0.785 x 20 toes x 20 toes x 10 toes
Volume = 3140 cu ft
Convert to gallons:
3140 cu feet x (7.Forty eight gal / 1 cu ft) = 23487.2 gal
According to a State Water Resources Control Board order, every Enrollee ought to develop and
put into effect a device-particular: - ANS-Sewer System Management Plan (SSMP)
After finishing a Temporary Traffic Control setup for your work area it is a great exercise to: -
ANS-Observe how effective your TTC setup is running to govern site visitors and make the vital
changes to it if essential
An upright circular cylinder tank (flat backside) has a diameter of 12 feet. When filled to a
intensity of eight ft, what is the volume? - ANS-Volume = 0.785 x Diameter x Diameter x Height
Volume = zero.785 x 12 toes x 12 ft x 8 ft
Volume = 904.32 cu feet
Barrels, lids, cones, and backflow devices are all protected in Manholes, authentic or false? -
ANS-False. All are blanketed except for backflow gadgets.
Before starting a upkeep operation in a basement located inside the outdoor of a residence you
should touch the resident and with politeness as permission to go into the backyard, real or
false? - ANS-True
, Biological hobby in lengthy, slow-drift, flat grade sewer lines will probable cause odors, actual or
fake? - ANS-True
Category 1 SSO's that discharge to a drainage channel and/or surface water need to be stated
inside: - ANS-2 hours
Centrifugal pump elements encompass a volute, actual or fake? - ANS-True
During the 24-hour operation a boost station pumped 3000 gallons in line with minute for a
community of 27000. What is the consistent with capita pumped in gallons in line with day? -
ANS-GPD / Capita = Volume Pumped Per Day / Number of humans
Volume = (3000 gal / 1 min) x (60 min / 1 hr) x (24 hr / 1 day)
Volume = 4320000 gal
GPD / Capita = 4320000 gal / 27000 humans
GPD / Capita = one hundred sixty
Emergency stoppages in pipelines may be cleared effectively by way of use of high pace
cleaners, actual or fake? - ANS-True
Flatter sewer line grades may purpose brought sewer preservation expense and scent
nuisance. The hassle is most probably as a result of: - ANS-A decrease in velocity allowing
natural and inorganic solids to settle out
Floats may be used to begin or stop pumps, proper or false? - ANS-True
For a night time Short Term Stationary Temporary Traffic Control Zone setup on low pace/low
quantity avenue, the minimum peak of the site visitors cones used will be: - ANS-28 inches
How lengthy is an Inquiry Identification Number for an Underground Service Alert (USA) viable
for? - ANS-28 days
How many different areas of site visitors zones are there while working in roadways? - ANS-Five
How many forms of common shoring are there? - ANS-6
How frequently should an excavation web site and adjoining regions be inspected for unsafe
conditions? - ANS-Daily
If an 8 inch pressure most important has a metered drift charge of 400000 gpd, what is the
speed? - ANS-Velocity = Flow / Area
Area = 0.785 x Diameter x Diameter
When locating Area, convert Diameter into toes
8 in x (1 ft / 12 in) = 0.667 ft
Area = zero.785 x zero.667 feet x 0.667 feet = 0.349 squarefeet
"Spring Blades" are a kind of tool used with: - ANS-Power Rodder
A clogged impeller can reason a pump to supply much less than its predicted rate of discharge,
real or false? - ANS-True
A float of 650 gpm could be how many MGD? - ANS-650 gpm x (1440 min / 1 day) = 936000
gpd
936000 x (1 MG / one million gal) = 0.936 MGD
A man or woman who completes a education software in accordance with the requirements of
Title 8, Calif. Code of Regulations, Minimum Guidelines of the Common Ground Alliance is
taken into consideration a Qualified Person, true or false? - ANS-True
A wet properly 20 ft in diameter is packed with water to a intensity of 10 ft. How many gallons
does the tank comprise? - ANS-Volume = zero.785 x Diameter x Diameter x Height
Volume = 0.785 x 20 toes x 20 toes x 10 toes
Volume = 3140 cu ft
Convert to gallons:
3140 cu feet x (7.Forty eight gal / 1 cu ft) = 23487.2 gal
According to a State Water Resources Control Board order, every Enrollee ought to develop and
put into effect a device-particular: - ANS-Sewer System Management Plan (SSMP)
After finishing a Temporary Traffic Control setup for your work area it is a great exercise to: -
ANS-Observe how effective your TTC setup is running to govern site visitors and make the vital
changes to it if essential
An upright circular cylinder tank (flat backside) has a diameter of 12 feet. When filled to a
intensity of eight ft, what is the volume? - ANS-Volume = 0.785 x Diameter x Diameter x Height
Volume = zero.785 x 12 toes x 12 ft x 8 ft
Volume = 904.32 cu feet
Barrels, lids, cones, and backflow devices are all protected in Manholes, authentic or false? -
ANS-False. All are blanketed except for backflow gadgets.
Before starting a upkeep operation in a basement located inside the outdoor of a residence you
should touch the resident and with politeness as permission to go into the backyard, real or
false? - ANS-True
, Biological hobby in lengthy, slow-drift, flat grade sewer lines will probable cause odors, actual or
fake? - ANS-True
Category 1 SSO's that discharge to a drainage channel and/or surface water need to be stated
inside: - ANS-2 hours
Centrifugal pump elements encompass a volute, actual or fake? - ANS-True
During the 24-hour operation a boost station pumped 3000 gallons in line with minute for a
community of 27000. What is the consistent with capita pumped in gallons in line with day? -
ANS-GPD / Capita = Volume Pumped Per Day / Number of humans
Volume = (3000 gal / 1 min) x (60 min / 1 hr) x (24 hr / 1 day)
Volume = 4320000 gal
GPD / Capita = 4320000 gal / 27000 humans
GPD / Capita = one hundred sixty
Emergency stoppages in pipelines may be cleared effectively by way of use of high pace
cleaners, actual or fake? - ANS-True
Flatter sewer line grades may purpose brought sewer preservation expense and scent
nuisance. The hassle is most probably as a result of: - ANS-A decrease in velocity allowing
natural and inorganic solids to settle out
Floats may be used to begin or stop pumps, proper or false? - ANS-True
For a night time Short Term Stationary Temporary Traffic Control Zone setup on low pace/low
quantity avenue, the minimum peak of the site visitors cones used will be: - ANS-28 inches
How lengthy is an Inquiry Identification Number for an Underground Service Alert (USA) viable
for? - ANS-28 days
How many different areas of site visitors zones are there while working in roadways? - ANS-Five
How many forms of common shoring are there? - ANS-6
How frequently should an excavation web site and adjoining regions be inspected for unsafe
conditions? - ANS-Daily
If an 8 inch pressure most important has a metered drift charge of 400000 gpd, what is the
speed? - ANS-Velocity = Flow / Area
Area = 0.785 x Diameter x Diameter
When locating Area, convert Diameter into toes
8 in x (1 ft / 12 in) = 0.667 ft
Area = zero.785 x zero.667 feet x 0.667 feet = 0.349 squarefeet
