CWEA COLLECTION SYSTEMS MAINTENANCE Q&A WITH
COMPLETE SOLUTIONS GUARANTEED PASS
Why are gasoline and volatile solvents objectionable
when present in a sewer? - ANSWER ->They produce an
explosion hazard
You should never attempt to install, maintain, repair or
replace electrical equipment panels, controls, wiring or
circuits unless - ANSWER ->You know what you are doing,
are qualified and are authorized
What are the different areas of traffic zones? - ANSWER -
>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? - ANSWER -
>to protect from corrosion and odors
,Personnel entering a Permit Required Confined Space
must have the following training - ANSWER ->entry and
rescue
To find protective gear before application of a product,
you should: - ANSWER ->look at the MSDS
The gas most commonly associated with septic
wastewater is - ANSWER ->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: - ANSWER ->some
dangerous gasses are odorless (for example, carbon
monoxide)
What are the four conditions necessary to create an
explosion? - ANSWER ->combustible gas, adequate
oxygen, heat and proper mixing of gas and oxygen
what does the "transition area" mean in traffic control? -
ANSWER ->It moves traffic out of its normal path
, what elements should be considered to improve worker
safety in High speed Temporary Traffic control Zones? -
ANSWER ->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? - ANSWER -
>Traffic Control Plan, By-Pass connections, and Spill
containment
What tools are used with a power rodder? - ANSWER -
>Spring Blades
Tools used for sewer rodding include: - ANSWER -
>porcupine, root saw, square bar cork screw
What tool would you use to cut VCP pipe? - ANSWER -
>Chain Pipe Cutter
Which conditions should a gas detection device test for?
- ANSWER ->Hydrogen sulfide, explosive/flammable
gases, oxygen
COMPLETE SOLUTIONS GUARANTEED PASS
Why are gasoline and volatile solvents objectionable
when present in a sewer? - ANSWER ->They produce an
explosion hazard
You should never attempt to install, maintain, repair or
replace electrical equipment panels, controls, wiring or
circuits unless - ANSWER ->You know what you are doing,
are qualified and are authorized
What are the different areas of traffic zones? - ANSWER -
>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? - ANSWER -
>to protect from corrosion and odors
,Personnel entering a Permit Required Confined Space
must have the following training - ANSWER ->entry and
rescue
To find protective gear before application of a product,
you should: - ANSWER ->look at the MSDS
The gas most commonly associated with septic
wastewater is - ANSWER ->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: - ANSWER ->some
dangerous gasses are odorless (for example, carbon
monoxide)
What are the four conditions necessary to create an
explosion? - ANSWER ->combustible gas, adequate
oxygen, heat and proper mixing of gas and oxygen
what does the "transition area" mean in traffic control? -
ANSWER ->It moves traffic out of its normal path
, what elements should be considered to improve worker
safety in High speed Temporary Traffic control Zones? -
ANSWER ->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? - ANSWER -
>Traffic Control Plan, By-Pass connections, and Spill
containment
What tools are used with a power rodder? - ANSWER -
>Spring Blades
Tools used for sewer rodding include: - ANSWER -
>porcupine, root saw, square bar cork screw
What tool would you use to cut VCP pipe? - ANSWER -
>Chain Pipe Cutter
Which conditions should a gas detection device test for?
- ANSWER ->Hydrogen sulfide, explosive/flammable
gases, oxygen
