CWEA Collections System Maintenance Grade 3 Exam Complete
Question And Answers
1. A Flagger should Stand? D. As stated in "A" or "B"
A. On the shoulder adjacent to traffic being controlled above.
B. In the closed lane before stopping vehicle traffic
C. In the traffic lane.
D. As stated in "A" or "B" above.
2. Legally responsible officials are required to report cat- D. Within 2 hours
egory 1 sanitary sewer overflows?
A. Within 30 days
B. Before end of the day
C. As soon as possible
D. Within 2 hours
3. When working in confined spaces or sewers, what A. Mirrors to direct
form of lighting would you use? the sunlight or explosion
A. Mirrors to direct the sunlight or explosion proof proof lighting.
lighting.
B. Ordinary electric lights
C. Propane, Gas, or kerosene lanterns
D. Special matches
4. What can happen if water-based substances are used c. Receive an electrical
to extinguish electrical fires? shock
a. Nothing but extinguish the fire
b. The fumes are not harmful
c. Receive an electrical shock
d. They will corrode the electrical contacts
5. When testing a manhole for explosive gases when b. Before removing the
should the first tests be made? manhole cover
a. After removing the manhole cover
, CWEA Collections System Maintenance Grade 3 Exam Complete
Question And Answers
b. Before removing the manhole cover
c. At any time
d. After ventilation
6. Atmospheric hazards encountered in manholes can c. lack of oxygen.
include:
a. non-explosive atmospheres.
b. non-toxic atmosphere.
c. lack of oxygen.
d. non-flammable atmospheres.
7. When setting up to ventilate a manhole, the air inlet c. 2.0
should be how many feet above street level?
a. 4.0
b. 3.0
c. 2.0
d. 1.0
8. Which chemical may be used for odor control in a b. Hydrogen peroxide
sewer system?
a. Calcium chloride
b. Hydrogen peroxide
c. Oxidized aluminum
d. Sodium chloride
9. What information must be on a warning tag attached c. Signature of person who
to a switch that has been locked out? locked out switch and who
a. Directions for removing tag. is the only person autho-
b. Name of nearest physician to call in case of emer- rized to remove tag.
gency.
c. Signature of person who locked out switch and who
, CWEA Collections System Maintenance Grade 3 Exam Complete
Question And Answers
is the only person authorized to remove tag.
d. Time to unlock switch.
10. Under what conditions must each member of the res- a. At least once a year in
cue service practice permit space rescues? a simulated situation or
a. At least once a year in a simulated situation or by the by the satisfactory perfor-
satisfactory performance of an actual rescue. mance of an actual rescue.
b. At least twice a year in simulated situations.
c. At least once a year in simulated situation using
non-representative space conditions
d. At least four times a year.
11. How is a permit-required space described? a. Has or may contain
a. Has or may contain atmospheric, engulfment, de- atmospheric, engulfment,
sign, or other serious health/safety hazard. design, or other serious
b. Is large enough to enter and work in and is meant health/safety hazard.
for continuous occupancy.
c. Is large enough to enter and work in and has an
unrestricted entry/exit.
d. Never contains an atmospheric or engulfment haz-
ard.
12. What are the three duties of personnel in a Confined c. Authorized entrants, at-
Space entry? tendants, entry supervi-
a. Authorized entrants, parking attendants, entry su- sors.
pervisors.
b. Unauthorized entrants, attendants, entry supervi-
sors.
c. Authorized entrants, attendants, entry supervisors.
d. Authorized entrants, attendants, evening supervi-
sors
Question And Answers
1. A Flagger should Stand? D. As stated in "A" or "B"
A. On the shoulder adjacent to traffic being controlled above.
B. In the closed lane before stopping vehicle traffic
C. In the traffic lane.
D. As stated in "A" or "B" above.
2. Legally responsible officials are required to report cat- D. Within 2 hours
egory 1 sanitary sewer overflows?
A. Within 30 days
B. Before end of the day
C. As soon as possible
D. Within 2 hours
3. When working in confined spaces or sewers, what A. Mirrors to direct
form of lighting would you use? the sunlight or explosion
A. Mirrors to direct the sunlight or explosion proof proof lighting.
lighting.
B. Ordinary electric lights
C. Propane, Gas, or kerosene lanterns
D. Special matches
4. What can happen if water-based substances are used c. Receive an electrical
to extinguish electrical fires? shock
a. Nothing but extinguish the fire
b. The fumes are not harmful
c. Receive an electrical shock
d. They will corrode the electrical contacts
5. When testing a manhole for explosive gases when b. Before removing the
should the first tests be made? manhole cover
a. After removing the manhole cover
, CWEA Collections System Maintenance Grade 3 Exam Complete
Question And Answers
b. Before removing the manhole cover
c. At any time
d. After ventilation
6. Atmospheric hazards encountered in manholes can c. lack of oxygen.
include:
a. non-explosive atmospheres.
b. non-toxic atmosphere.
c. lack of oxygen.
d. non-flammable atmospheres.
7. When setting up to ventilate a manhole, the air inlet c. 2.0
should be how many feet above street level?
a. 4.0
b. 3.0
c. 2.0
d. 1.0
8. Which chemical may be used for odor control in a b. Hydrogen peroxide
sewer system?
a. Calcium chloride
b. Hydrogen peroxide
c. Oxidized aluminum
d. Sodium chloride
9. What information must be on a warning tag attached c. Signature of person who
to a switch that has been locked out? locked out switch and who
a. Directions for removing tag. is the only person autho-
b. Name of nearest physician to call in case of emer- rized to remove tag.
gency.
c. Signature of person who locked out switch and who
, CWEA Collections System Maintenance Grade 3 Exam Complete
Question And Answers
is the only person authorized to remove tag.
d. Time to unlock switch.
10. Under what conditions must each member of the res- a. At least once a year in
cue service practice permit space rescues? a simulated situation or
a. At least once a year in a simulated situation or by the by the satisfactory perfor-
satisfactory performance of an actual rescue. mance of an actual rescue.
b. At least twice a year in simulated situations.
c. At least once a year in simulated situation using
non-representative space conditions
d. At least four times a year.
11. How is a permit-required space described? a. Has or may contain
a. Has or may contain atmospheric, engulfment, de- atmospheric, engulfment,
sign, or other serious health/safety hazard. design, or other serious
b. Is large enough to enter and work in and is meant health/safety hazard.
for continuous occupancy.
c. Is large enough to enter and work in and has an
unrestricted entry/exit.
d. Never contains an atmospheric or engulfment haz-
ard.
12. What are the three duties of personnel in a Confined c. Authorized entrants, at-
Space entry? tendants, entry supervi-
a. Authorized entrants, parking attendants, entry su- sors.
pervisors.
b. Unauthorized entrants, attendants, entry supervi-
sors.
c. Authorized entrants, attendants, entry supervisors.
d. Authorized entrants, attendants, evening supervi-
sors
