CWEA COLLECTION SYSTEMS MAINTENANCE | TOP
SCORES MADE SIMPLE | TRUSTED TEST SOLUTIONS!
QUALITY CONTENT YOU CAN RELY ON!
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
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, 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
What does "LEL" mean on a gas detection meter? Answer: Lower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below: Answer: 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? Answer: The L.O.T.O Program
What does L.O.T.O. Stand for? Answer: Lock out tag out
What document would you require to be referenced when developing an S.O.p. for
hazardous substace spill clean up? Answer: M.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space you would
include what two factors? Answer: Placement of the blower and a weather forecast
According to the State Water Resources Control Board Order No. 2006-003-DWQ, each
enrollee must develop and implement a system-specific: Answer: SSMP (Sewer System
Management Plan)
How long do you have to report a category 1 SSO? Answer: 2 hours
To report in the Statewide SSO Data-base California Integrated Water Quality System
(CIWQS) regarding the location of a Category 2 SSO, how must you report the location?
Answer: Using the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: Answer:
odors
Flatter sewer line grades may cause added sewer maintenance expense and odor
nuisance. This is caused by what? Answer: A decrease in velocity which allows organic and
inorganic solids to settle out. This, in turn, allows biological activity to happen which
corrodes the pipe and releases hydrogen sulfide (H2S) which smells like rotten eggs
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
SCORES MADE SIMPLE | TRUSTED TEST SOLUTIONS!
QUALITY CONTENT YOU CAN RELY ON!
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
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, 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
What does "LEL" mean on a gas detection meter? Answer: Lower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below: Answer: 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? Answer: The L.O.T.O Program
What does L.O.T.O. Stand for? Answer: Lock out tag out
What document would you require to be referenced when developing an S.O.p. for
hazardous substace spill clean up? Answer: M.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space you would
include what two factors? Answer: Placement of the blower and a weather forecast
According to the State Water Resources Control Board Order No. 2006-003-DWQ, each
enrollee must develop and implement a system-specific: Answer: SSMP (Sewer System
Management Plan)
How long do you have to report a category 1 SSO? Answer: 2 hours
To report in the Statewide SSO Data-base California Integrated Water Quality System
(CIWQS) regarding the location of a Category 2 SSO, how must you report the location?
Answer: Using the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: Answer:
odors
Flatter sewer line grades may cause added sewer maintenance expense and odor
nuisance. This is caused by what? Answer: A decrease in velocity which allows organic and
inorganic solids to settle out. This, in turn, allows biological activity to happen which
corrodes the pipe and releases hydrogen sulfide (H2S) which smells like rotten eggs
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
