Page 1 of 38
CWEA COLLECTIONS SYSTEM MAINTENANCE
GRADE 3 EXAM WITH COMPLETE 200 QUESTIONS
AND CORRECT ANSWERS JUST RELEASED THIS
YEAR ALREADY GRADED A+
Question: Construction of a wastewater pipeline under a highway or railway without disrupting
the traffic is done by?
a. Drag lining.
b. Dredging.
c. Embankment excavation.
d. Boring and jacking. - CORRECT ANSWER✔✔d. Boring and jacking.
Question: When a grade conflict exists between a water main and a sewer main, which of the
following is the best solution?
a. Build a manhole around the sewer main and continue the water main through the manhole.
b. Drop the sewer service under the water main and let it work like a siphon.
c. Have the water main adjusted and hold the grade on the sewer main.
d. Raise the sewer over the water main and install a sewer pump station. - CORRECT
ANSWER✔✔c. Have the water main adjusted and hold the grade on the sewer main.
, Page 2 of 38
Question: The reason newly constructed collection system sewers should be inspected is to:
a. determine if the contractor has complied with plans and specifications.
b. determine if smoke tests will be successful.
c. determine if dye tests will be successful.
d. determine if the streets are paved. - CORRECT ANSWER✔✔a. determine if the contractor has
complied with plans and specifications.
Question: A source of infiltration in a collection system is:
a. new pipes.
b. proper joint pipes.
c. pipe liners
d. broken pipe joints - CORRECT ANSWER✔✔d. broken pipe joints
Question: What are the advantages of a video tape recording system?
a. Cheaper than a Polaroid camera.
b. Record and play private video tapes.
c. The ability to see what's happening when the camera is underwater. d. The length and
severity of defective areas that can be recorded for later study. - CORRECT ANSWER✔✔d. The
length and severity of defective areas that can be recorded for later study.
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Question: Before conducting smoke testing you should:
a. warn the public after smoke testing is completed.
b. notify local police and fire departments only if a fire is started.
c. notify local animal control departments in advance of testing.
d. notify public, local police, and fire departments in advance of testing. - CORRECT
ANSWER✔✔d. notify public, local police, and fire departments in advance of testing.
Question: A Flagger should Stand?
A. On the shoulder adjacent to traffic being controlled
B. In the closed lane before stopping vehicle traffic
C. In the traffic lane.
D. As stated in "A" or "B" above. - CORRECT ANSWER✔✔D. As stated in "A" or "B" above.
Question: Legally responsible officials are required to report category 1 sanitary sewer
overflows?
A. Within 30 days
B. Before end of the day
C. As soon as possible
D. Within 2 hours - CORRECT ANSWER✔✔D. Within 2 hours
, Page 4 of 38
Question: When working in confined spaces or sewers, what form of lighting would you use?
A. Mirrors to direct the sunlight or explosion proof lighting.
B. Ordinary electric lights
C. Propane, Gas, or kerosene lanterns
D. Special matches - CORRECT ANSWER✔✔A. Mirrors to direct the sunlight or explosion proof
lighting.
Question: What can happen if water-based substances are used to extinguish electrical fires?
a. Nothing but extinguish the fire
b. The fumes are not harmful
c. Receive an electrical shock
d. They will corrode the electrical contacts - CORRECT ANSWER✔✔c. Receive an electrical shock
Question: When testing a manhole for explosive gases when should the first tests be made?
a. After removing the manhole cover
b. Before removing the manhole cover
c. At any time
d. After ventilation - CORRECT ANSWER✔✔b. Before removing the manhole cover
CWEA COLLECTIONS SYSTEM MAINTENANCE
GRADE 3 EXAM WITH COMPLETE 200 QUESTIONS
AND CORRECT ANSWERS JUST RELEASED THIS
YEAR ALREADY GRADED A+
Question: Construction of a wastewater pipeline under a highway or railway without disrupting
the traffic is done by?
a. Drag lining.
b. Dredging.
c. Embankment excavation.
d. Boring and jacking. - CORRECT ANSWER✔✔d. Boring and jacking.
Question: When a grade conflict exists between a water main and a sewer main, which of the
following is the best solution?
a. Build a manhole around the sewer main and continue the water main through the manhole.
b. Drop the sewer service under the water main and let it work like a siphon.
c. Have the water main adjusted and hold the grade on the sewer main.
d. Raise the sewer over the water main and install a sewer pump station. - CORRECT
ANSWER✔✔c. Have the water main adjusted and hold the grade on the sewer main.
, Page 2 of 38
Question: The reason newly constructed collection system sewers should be inspected is to:
a. determine if the contractor has complied with plans and specifications.
b. determine if smoke tests will be successful.
c. determine if dye tests will be successful.
d. determine if the streets are paved. - CORRECT ANSWER✔✔a. determine if the contractor has
complied with plans and specifications.
Question: A source of infiltration in a collection system is:
a. new pipes.
b. proper joint pipes.
c. pipe liners
d. broken pipe joints - CORRECT ANSWER✔✔d. broken pipe joints
Question: What are the advantages of a video tape recording system?
a. Cheaper than a Polaroid camera.
b. Record and play private video tapes.
c. The ability to see what's happening when the camera is underwater. d. The length and
severity of defective areas that can be recorded for later study. - CORRECT ANSWER✔✔d. The
length and severity of defective areas that can be recorded for later study.
, Page 3 of 38
Question: Before conducting smoke testing you should:
a. warn the public after smoke testing is completed.
b. notify local police and fire departments only if a fire is started.
c. notify local animal control departments in advance of testing.
d. notify public, local police, and fire departments in advance of testing. - CORRECT
ANSWER✔✔d. notify public, local police, and fire departments in advance of testing.
Question: A Flagger should Stand?
A. On the shoulder adjacent to traffic being controlled
B. In the closed lane before stopping vehicle traffic
C. In the traffic lane.
D. As stated in "A" or "B" above. - CORRECT ANSWER✔✔D. As stated in "A" or "B" above.
Question: Legally responsible officials are required to report category 1 sanitary sewer
overflows?
A. Within 30 days
B. Before end of the day
C. As soon as possible
D. Within 2 hours - CORRECT ANSWER✔✔D. Within 2 hours
, Page 4 of 38
Question: When working in confined spaces or sewers, what form of lighting would you use?
A. Mirrors to direct the sunlight or explosion proof lighting.
B. Ordinary electric lights
C. Propane, Gas, or kerosene lanterns
D. Special matches - CORRECT ANSWER✔✔A. Mirrors to direct the sunlight or explosion proof
lighting.
Question: What can happen if water-based substances are used to extinguish electrical fires?
a. Nothing but extinguish the fire
b. The fumes are not harmful
c. Receive an electrical shock
d. They will corrode the electrical contacts - CORRECT ANSWER✔✔c. Receive an electrical shock
Question: When testing a manhole for explosive gases when should the first tests be made?
a. After removing the manhole cover
b. Before removing the manhole cover
c. At any time
d. After ventilation - CORRECT ANSWER✔✔b. Before removing the manhole cover
