CWEA Collections Grade 2 Practice Test & Study Guide | 2025 Certification
Exam prep
Why are gasoline and
volatile solvents objection- They produce an explo-
able when present in a sion hazard
sewer?
You should never attempt
to install, troubleshoot, You know what you are do-
maintain, repair, or replace ing, are qualified, and are
electrical equipment un- authorized.
less:
How many different areas
of traffic zones are there
Five
when working in road-
ways?
Why should hydrogen sul- To protect sewers and
fide be controlled? structures from corrosion
Personnel entering a Per-
mit Required Confined Entry and rescue proce-
Space must have the fol- dures
lowing training:
To find proper protective
Look at the MSDS (Mater-
gear before application of
ial Safety Data Sheet)
a product, you would:
, CWEA Collections Grade 2 Practice Test & Study Guide | 2025 Certification
Exam prep
The gas most common-
ly associated with septic Hydrogen Sulfide (H2S)
wastewater is:
The lack of an unpleasant
odor in a structure does
Some dangerous gases
not always mean that dan-
have no odor
gerous gases are not pre-
sent because:
Combustible gas, ade-
What four conditions are
quate oxygen, sufficient
necessary to create an ex-
heat, and proper mixing of
plosion?
gas and oxygen.
What does "transition
Moves traffic out of its nor-
area" mean in traffic con-
mal path
trol?
The term "transition area"
Traffic Control Zone
is one component of a:
Rerouting traffic around
What elements should
the work site, positioning
be considered to improve
of law enforcement offi-
worker safety in High
cers in the temporary traf-
Speed Temporary Traffic
fic control zone, and work
Control Zones?
zone training.
, CWEA Collections Grade 2 Practice Test & Study Guide | 2025 Certification
Exam prep
What key factors would
Traffic control plan,
you need to address when
by-pass connections, and
developing an S.O.P. for
spill containment.
Lift Station failure?
"Spring Blades" are a type
Power Rodder
of tool used with:
Porcupine, Root Saw, and
a Square Bar Cork Screw Sewer rodding
are all tools used for:
What tool would you use to
Chain pipe cutter
cut VCP pipe?
Which conditions should a Hydrogen Sulfide, ex-
gas detection device test plosive/flammable gases,
for? oxygen.
What does "LEL" mean on
Lower explosive limit
a gas detection meter?
The oxygen level alarm in
a gas detection meter is
19.5%
normally set to go off at
oxygen levels below:
When developing an
S.O.P. for scheduled main-
tenance of electrical
Exam prep
Why are gasoline and
volatile solvents objection- They produce an explo-
able when present in a sion hazard
sewer?
You should never attempt
to install, troubleshoot, You know what you are do-
maintain, repair, or replace ing, are qualified, and are
electrical equipment un- authorized.
less:
How many different areas
of traffic zones are there
Five
when working in road-
ways?
Why should hydrogen sul- To protect sewers and
fide be controlled? structures from corrosion
Personnel entering a Per-
mit Required Confined Entry and rescue proce-
Space must have the fol- dures
lowing training:
To find proper protective
Look at the MSDS (Mater-
gear before application of
ial Safety Data Sheet)
a product, you would:
, CWEA Collections Grade 2 Practice Test & Study Guide | 2025 Certification
Exam prep
The gas most common-
ly associated with septic Hydrogen Sulfide (H2S)
wastewater is:
The lack of an unpleasant
odor in a structure does
Some dangerous gases
not always mean that dan-
have no odor
gerous gases are not pre-
sent because:
Combustible gas, ade-
What four conditions are
quate oxygen, sufficient
necessary to create an ex-
heat, and proper mixing of
plosion?
gas and oxygen.
What does "transition
Moves traffic out of its nor-
area" mean in traffic con-
mal path
trol?
The term "transition area"
Traffic Control Zone
is one component of a:
Rerouting traffic around
What elements should
the work site, positioning
be considered to improve
of law enforcement offi-
worker safety in High
cers in the temporary traf-
Speed Temporary Traffic
fic control zone, and work
Control Zones?
zone training.
, CWEA Collections Grade 2 Practice Test & Study Guide | 2025 Certification
Exam prep
What key factors would
Traffic control plan,
you need to address when
by-pass connections, and
developing an S.O.P. for
spill containment.
Lift Station failure?
"Spring Blades" are a type
Power Rodder
of tool used with:
Porcupine, Root Saw, and
a Square Bar Cork Screw Sewer rodding
are all tools used for:
What tool would you use to
Chain pipe cutter
cut VCP pipe?
Which conditions should a Hydrogen Sulfide, ex-
gas detection device test plosive/flammable gases,
for? oxygen.
What does "LEL" mean on
Lower explosive limit
a gas detection meter?
The oxygen level alarm in
a gas detection meter is
19.5%
normally set to go off at
oxygen levels below:
When developing an
S.O.P. for scheduled main-
tenance of electrical
