CWEA Collections System Maintenance Grade 3(Questions And Answers)2023
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CWEA Collections System Maintenance Grade 3(Questions And Answers)2023
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.
D. As stated in "A" or "B" a...
CWEA Collections System Maintenance Grade
3(Questions And Answers)2023
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.
D. As stated in "A" or "B" above.
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
D. Within 2 hours
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
A. Mirrors to direct the sunlight or explosion proof lighting.
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
c. Receive an electrical shock
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
b. Before removing the manhole cover
Atmospheric hazards encountered in manholes can include:
a. non-explosive atmospheres.
b. non-toxic atmosphere.
c. lack of oxygen.
d. non-flammable atmospheres.
c. lack of oxygen.
When setting up to ventilate a manhole, the air inlet should be how many feet
above street level?
a. 4.0
, b. 3.0
c. 2.0
d. 1.0
c. 2.0
Which chemical may be used for odor control in a sewer system?
a. Calcium chloride
b. Hydrogen peroxide
c. Oxidized aluminum
d. Sodium chloride
b. Hydrogen peroxide
What information must be on a warning tag attached to a switch that has been
locked out?
a. Directions for removing tag.
b. Name of nearest physician to call in case of emergency.
c. Signature of person who locked out switch and who is the only person
authorized to remove tag.
d. Time to unlock switch.
c. Signature of person who locked out switch and who is the only person authorized to
remove tag.
Under what conditions must each member of the rescue service practice permit
space rescues?
a. At least once a year in a simulated situation or by the satisfactory performance
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.
a. At least once a year in a simulated situation or by the satisfactory performance of an
actual rescue.
How is a permit-required space described?
a. Has or may contain atmospheric, engulfment, design, or other serious
health/safety hazard.
b. Is large enough to enter and work in and is meant 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 hazard.
a. Has or may contain atmospheric, engulfment, design, or other serious health/safety
hazard.
What are the three duties of personnel in a Confined Space entry?
a. Authorized entrants, parking attendants, entry supervisors.
b. Unauthorized entrants, attendants, entry supervisors.
c. Authorized entrants, attendants, entry supervisors.
d. Authorized entrants, attendants, evening supervisors
c. Authorized entrants, attendants, entry supervisors.
What is an important element of hydrogen sulfide production?
a. Flow velocity.
b. Pipe materials.
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