CWEA COLLECTION SYSTEMS MAINTENANCE EXAM QUESTIONS AND
ANSWERS GRADED A+ 100% GUARANTEED SUCCESS.
Why are gasoline and volatile solvents objectionable when present in a
sewer? ANS >>> They produce an explosion hazard
You should never attempt to install, maintain, repair or replace
electrical equipment panels, controls, wiring or circuits unless ANS >>>
You know what you are doing, are qualified and are authorized
What are the different areas of traffic zones? ANS >>> Advance
Warning Area, Transition Area, Activity Area (buffer space and work
space), Termination Area. Could be 4 or 5, justify your answer on the
test!
why should hydrogen sulfide be controlled? ANS >>> to protect from
corrosion and odors
,Personnel entering a Permit Required Confined Space must have the
following training ANS >>> entry and rescue
To find protective gear before application of a product, you should:
ANS >>> look at the MSDS
The gas most commonly associated with septic wastewater is ANS >>>
Hydrogen Sulfide
The lack of an unpleasant odor in a manhole, lift station or other
structures does not always mean that dangerous gases are not present
because: ANS >>> some dangerous gasses are odorless (for example,
carbon monoxide)
What are the four conditions necessary to create an explosion? ANS
>>> combustible gas, adequate oxygen, heat and proper mixing of gas
and oxygen
what does the "transition area" mean in traffic control? ANS >>> It
moves traffic out of its normal path
what elements should be considered to improve worker safety in High-
speed Temporary Traffic control Zones? ANS >>> Rerouting traffic
around the work site, positioning of law enforcement officers in the
temporary traffic control zone, and work zone training
, What key features would you need to address when developing an
S.O.P. for a Lift Station failure? ANS >>> Traffic Control Plan, By-Pass
connections, and Spill containment
What tools are used with a power rudder? ANS >>> Spring Blades
Tools used for sewer rodding include: ANS >>> porcupine, root saw,
square bar cork screw
What tool would you use to cut VCP pipe? ANS >>> Chain Pipe Cutter
Which conditions should a gas detection device test for? ANS >>>
Hydrogen sulfide, explosive/flammable gases, oxygen
What does "LEL" mean on a gas detection meter? ANS >>> Lower
Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below:
ANS >>> 19.5 percent
When developing an S.O.P. for scheduled maintenance of electrical
equipment, what program should be addressed as a primary safety
guideline? ANS >>> The L.O.T.O Program
ANSWERS GRADED A+ 100% GUARANTEED SUCCESS.
Why are gasoline and volatile solvents objectionable when present in a
sewer? ANS >>> They produce an explosion hazard
You should never attempt to install, maintain, repair or replace
electrical equipment panels, controls, wiring or circuits unless ANS >>>
You know what you are doing, are qualified and are authorized
What are the different areas of traffic zones? ANS >>> Advance
Warning Area, Transition Area, Activity Area (buffer space and work
space), Termination Area. Could be 4 or 5, justify your answer on the
test!
why should hydrogen sulfide be controlled? ANS >>> to protect from
corrosion and odors
,Personnel entering a Permit Required Confined Space must have the
following training ANS >>> entry and rescue
To find protective gear before application of a product, you should:
ANS >>> look at the MSDS
The gas most commonly associated with septic wastewater is ANS >>>
Hydrogen Sulfide
The lack of an unpleasant odor in a manhole, lift station or other
structures does not always mean that dangerous gases are not present
because: ANS >>> some dangerous gasses are odorless (for example,
carbon monoxide)
What are the four conditions necessary to create an explosion? ANS
>>> combustible gas, adequate oxygen, heat and proper mixing of gas
and oxygen
what does the "transition area" mean in traffic control? ANS >>> It
moves traffic out of its normal path
what elements should be considered to improve worker safety in High-
speed Temporary Traffic control Zones? ANS >>> Rerouting traffic
around the work site, positioning of law enforcement officers in the
temporary traffic control zone, and work zone training
, What key features would you need to address when developing an
S.O.P. for a Lift Station failure? ANS >>> Traffic Control Plan, By-Pass
connections, and Spill containment
What tools are used with a power rudder? ANS >>> Spring Blades
Tools used for sewer rodding include: ANS >>> porcupine, root saw,
square bar cork screw
What tool would you use to cut VCP pipe? ANS >>> Chain Pipe Cutter
Which conditions should a gas detection device test for? ANS >>>
Hydrogen sulfide, explosive/flammable gases, oxygen
What does "LEL" mean on a gas detection meter? ANS >>> Lower
Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below:
ANS >>> 19.5 percent
When developing an S.O.P. for scheduled maintenance of electrical
equipment, what program should be addressed as a primary safety
guideline? ANS >>> The L.O.T.O Program
