CWEA COLLECTIONS GRADE 1, 2, & 3
PRACTICE EXAM NEW LATEST VERSION
UPDATED WITH ALL QUESTIONS AND
ANSWERS
Which type of shovel do collection system technologist use
Correct Answer Grit Shovel
What type of saw is used to cut asphalt? Correct Answer
Diamond bladed or toothed power saw
Googles, earplugs, and glove are needed when using a Correct
Answer Power Grinder
What type of equipment should be used to excavate a broken
sewer pipe? Correct Answer Backhoe
What is a mechanical means to dislodge material from a sewer?
Correct Answer Scraping
When should field crews use signs and cones? Correct Answer
When over half the street is blocked.
The different zones of traffic control include Correct Answer
buffer
Elements of defensive driving include Correct Answer having
your vehicle under control
The primary function of an entry supervisor is to Correct Answer
maintain overall saftey of permited confied space operations
,What should be the alarm set point for oxygen in an atmospheric
monitoring/testing device? Correct Answer 19.5%
Warning,caution,danger,on a label means Correct Answer
Hazardous
MSDS means Correct Answer Material Data Safety Sheet
What is the purpose of the OSHA Hazard Communication SHeet
Correct Answer To make sure employees know about any
hazardous chemicals they may contact
How can traffic be warned of your presence in the street? Correct
Answer Signs,Cones,Flagman
What check should be preformed before driving a vehicle?
Correct Answer Mechanical/Safety
Where will collection system operators most likely find black
windows Spiders and scorpions. Correct Answer Manholes
Typical safety hazards in collections system operations include
Correct 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? Correct Answer Tamper
The formula for calculating the volume of a wet well is Correct
Answer V=W*L*H
Tasks preformed by a collection system operator includes:
Correct Answer Maintaining collection system equipment
, One cubic food per second flow is equal to Correct Answer
26,928 Gallons
To properly operate a power rodder Correct 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 Correct Answer Show Work = 5,872
Gallons
Sewer maintenance vehicles are Correct Answer difficult to
maneuver
At low concentrations, hydrogen sulfide smells like Correct
Answer Rotten Eggs
which safety hazard in a collection system operations can be
detected by an insturment? Correct Answer Toxic Gases
What must be checked first before entering a manhole? Correct
Answer Proper barricades or warning devices around manhole.
What is an orifice plate? Correct Answer A plate with a small hole
in it to restrict the flow.
GRADE 2
What elements should be considered to improve worker safety in
High Speed Temporary Traffic Control Zones? Correct Answer
Rerouting traffic around the work site, positioning of law
enforcement officers in the temporary traffic control zone, and
work zone training.
What key factors would you need to address when developing an
S.O.P. for Lift Station failure? Correct Answer Traffic control plan,
by-pass connections, and spill containment.
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