1|P a g e
CWEA COLLECTIONS GRADE 1 ACTUAL
EXAM PREP 2026 ALL QUESTIONS AND
CORRECT DETAILED ANSWERS ALREADY
A GRADED |CURRENTLY TESTING |NEW
AND REVISED
What is the purpose of the OSHA Hazard Communication SHeet -
ANSWER- To make sure employees know about any hazardous
chemicals they may contact
How can traffic be warned of your presence in the street? - ANSWER-
Signs,Cones,Flagman
What check should be preformed before driving a vehicle? - ANSWER-
Mechanical/Safety
Where will collection system operators most likely find black windows
Spiders and scorpions. - ANSWER- Manholes
Typical safety hazards in collections system operations include -
ANSWER- Oxygen defiency
You have an air compressor and you have been instructed to compact
the backfill in a trench. Which of the following is the best tool to use? -
ANSWER- Tamper
,2|P a g e
Which type of shovel do collection system technologist use - ANSWER-
Grit Shovel
What type of saw is used to cut asphalt? - ANSWER- Diamond bladed
or toothed power saw
Googles, earplugs, and glove are needed when using a - ANSWER-
Power Grinder
What type of equipment should be used to excavate a broken sewer
pipe? - ANSWER- Backhoe
What is a mechanical means to dislodge material from a sewer? -
ANSWER- Scraping
The formula for calculating the volume of a wet well is - ANSWER-
V=W*L*H
Tasks preformed by a collection system operator includes: - ANSWER-
Maintaining collection system equipment
One cubic food per second flow is equal to - ANSWER- 26,928 Gallons
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To properly operate a power rodder - ANSWER- Make sure all the
torque is out of it before handling.
The diameter of a wet well is 10 feet. If filled to a depth of 10 feet, it
will contain approximately - ANSWER- Show Work = 5,872 Gallons
What is an orifice plate? - ANSWER- A plate with a small hole in it to
restrict the flow.
Sewer maintenance vehicles are - ANSWER- difficult to maneuver
At low concentrations, hydrogen sulfide smells like - ANSWER- Rotten
Eggs
which safety hazard in a collection system operations can be detected by
an insturment? - ANSWER- Toxic Gases
What must be checked first before entering a manhole? - ANSWER-
Proper barricades or warning devices around manhole.
When should field crews use signs and cones? - ANSWER- When over
half the street is blocked.
The different zones of traffic control include - ANSWER- buffer
CWEA COLLECTIONS GRADE 1 ACTUAL
EXAM PREP 2026 ALL QUESTIONS AND
CORRECT DETAILED ANSWERS ALREADY
A GRADED |CURRENTLY TESTING |NEW
AND REVISED
What is the purpose of the OSHA Hazard Communication SHeet -
ANSWER- To make sure employees know about any hazardous
chemicals they may contact
How can traffic be warned of your presence in the street? - ANSWER-
Signs,Cones,Flagman
What check should be preformed before driving a vehicle? - ANSWER-
Mechanical/Safety
Where will collection system operators most likely find black windows
Spiders and scorpions. - ANSWER- Manholes
Typical safety hazards in collections system operations include -
ANSWER- Oxygen defiency
You have an air compressor and you have been instructed to compact
the backfill in a trench. Which of the following is the best tool to use? -
ANSWER- Tamper
,2|P a g e
Which type of shovel do collection system technologist use - ANSWER-
Grit Shovel
What type of saw is used to cut asphalt? - ANSWER- Diamond bladed
or toothed power saw
Googles, earplugs, and glove are needed when using a - ANSWER-
Power Grinder
What type of equipment should be used to excavate a broken sewer
pipe? - ANSWER- Backhoe
What is a mechanical means to dislodge material from a sewer? -
ANSWER- Scraping
The formula for calculating the volume of a wet well is - ANSWER-
V=W*L*H
Tasks preformed by a collection system operator includes: - ANSWER-
Maintaining collection system equipment
One cubic food per second flow is equal to - ANSWER- 26,928 Gallons
, 3|P a g e
To properly operate a power rodder - ANSWER- Make sure all the
torque is out of it before handling.
The diameter of a wet well is 10 feet. If filled to a depth of 10 feet, it
will contain approximately - ANSWER- Show Work = 5,872 Gallons
What is an orifice plate? - ANSWER- A plate with a small hole in it to
restrict the flow.
Sewer maintenance vehicles are - ANSWER- difficult to maneuver
At low concentrations, hydrogen sulfide smells like - ANSWER- Rotten
Eggs
which safety hazard in a collection system operations can be detected by
an insturment? - ANSWER- Toxic Gases
What must be checked first before entering a manhole? - ANSWER-
Proper barricades or warning devices around manhole.
When should field crews use signs and cones? - ANSWER- When over
half the street is blocked.
The different zones of traffic control include - ANSWER- buffer
