CWEA Collections Grade 2 Practice Test Exam
2025–2026 Accurate Real Exam Questions and
Verified Correct Answers JUST RELEASED
How many different areas of traffic zones are there when working in
roadways? - answer>>>Five
How often must an excavation site and adjacent areas be inspected for
hazardous conditions? - answer>>>Daily
Working in an un-sloped trench with no shoring is one option of Protective
Shoring Systems, true or false? - answer>>>False. Some options are proper
stopping or benching of the sides of the excavation, supporting the sides of a
trench with shoring, and using a shield in the excavation area.
Proper operation and maintenance of wastewater collection is keeping
wastewater flowing through pipes, true or false? - answer>>>True
Minimum design velocity for a sewer should greater than: - answer>>>2 feet
per second
Vitrified Clay pipe is a Rigid type of pipe, true or false? - answer>>>True
Barrels, lids, cones, and backflow devices are all included in Manholes, true
or false? - answer>>>False. All are included except for backflow devices.
Sewer testing methods include air, water, mandrill, and sewage, true or
false? - answer>>>False. Sewer testing methods do not include sewage.
, Using high velocity cleaners is one method included in hydraulic sewer
cleaning, true or false? - answer>>>True
A flow of 650 gpm would be how many MGD? - answer>>>650 gpm x (1440
min / 1 day) = 936000 gpd
936000 x (1 MG / 1000000 gal) = 0.936 MGD
One of the advantages of using CCTV is that the length and severity of
defective pipe areas can be recorded, true or false? - answer>>>True
Offset joints are one hazard that may damage a TV camera going through a
sewer, true or false? - answer>>>True
What is the total volume of 1000 feet of 8 inch line? - answer>>>Convert
inches to feet:
8 inches x (1 foot / 12 inches) = 0.666
Volume of a right regular cylinder:
V = 0.785 x Diameter x Diameter x Length of Pipe
V = 0.785 x 0.666 ft x 0.666 ft x 1000 ft
V = 348.19 cu ft
Convert to gallons:
348.19 cu ft x (7.48 gal / 1 cu ft) = 2604.47 gal
If an 8 inch force main has a metered flow rate of 400000 gpd, what is the
velocity? - answer>>>Velocity = Flow / Area
Area = 0.785 x Diameter x Diameter
When finding Area, convert Diameter into feet
8 in x (1 ft / 12 in) = 0.667 ft
Area = 0.785 x 0.667 ft x 0.667 ft = 0.349 sq ft
2025–2026 Accurate Real Exam Questions and
Verified Correct Answers JUST RELEASED
How many different areas of traffic zones are there when working in
roadways? - answer>>>Five
How often must an excavation site and adjacent areas be inspected for
hazardous conditions? - answer>>>Daily
Working in an un-sloped trench with no shoring is one option of Protective
Shoring Systems, true or false? - answer>>>False. Some options are proper
stopping or benching of the sides of the excavation, supporting the sides of a
trench with shoring, and using a shield in the excavation area.
Proper operation and maintenance of wastewater collection is keeping
wastewater flowing through pipes, true or false? - answer>>>True
Minimum design velocity for a sewer should greater than: - answer>>>2 feet
per second
Vitrified Clay pipe is a Rigid type of pipe, true or false? - answer>>>True
Barrels, lids, cones, and backflow devices are all included in Manholes, true
or false? - answer>>>False. All are included except for backflow devices.
Sewer testing methods include air, water, mandrill, and sewage, true or
false? - answer>>>False. Sewer testing methods do not include sewage.
, Using high velocity cleaners is one method included in hydraulic sewer
cleaning, true or false? - answer>>>True
A flow of 650 gpm would be how many MGD? - answer>>>650 gpm x (1440
min / 1 day) = 936000 gpd
936000 x (1 MG / 1000000 gal) = 0.936 MGD
One of the advantages of using CCTV is that the length and severity of
defective pipe areas can be recorded, true or false? - answer>>>True
Offset joints are one hazard that may damage a TV camera going through a
sewer, true or false? - answer>>>True
What is the total volume of 1000 feet of 8 inch line? - answer>>>Convert
inches to feet:
8 inches x (1 foot / 12 inches) = 0.666
Volume of a right regular cylinder:
V = 0.785 x Diameter x Diameter x Length of Pipe
V = 0.785 x 0.666 ft x 0.666 ft x 1000 ft
V = 348.19 cu ft
Convert to gallons:
348.19 cu ft x (7.48 gal / 1 cu ft) = 2604.47 gal
If an 8 inch force main has a metered flow rate of 400000 gpd, what is the
velocity? - answer>>>Velocity = Flow / Area
Area = 0.785 x Diameter x Diameter
When finding Area, convert Diameter into feet
8 in x (1 ft / 12 in) = 0.667 ft
Area = 0.785 x 0.667 ft x 0.667 ft = 0.349 sq ft
