CWEA Collections Grade 2 Practice Test | 75
Questions with 100% Correct Answers
Why are gasoline and volatile solvents objectionable when present in a sewer? Correct Answer:
They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical
equipment unless: Correct Answer: You know what you are doing, are qualified, and are
authorized.
How many different areas of traffic zones are there when working in roadways? Correct Answer:
Five
Why should hydrogen sulfide be controlled? Correct Answer: To protect sewers and structures
from corrosion
Personnel entering a Permit Required Confined Space must have the following training: Correct
Answer: Entry and rescue procedures
To find proper protective gear before application of a product, you would: Correct Answer:
Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: Correct Answer: Hydrogen
Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean that dangerous gases are not
present because: Correct Answer: Some dangerous gases have no odor
What four conditions are necessary to create an explosion? Correct Answer: Combustible gas,
adequate oxygen, sufficient heat, and proper mixing of gas and oxygen.
What does "transition area" mean in traffic control? Correct Answer: Moves traffic out of its
normal path
The term "transition area" is one component of a: Correct Answer: Traffic Control Zone
What elements should be considered to improve worker safety in High Speed Temporary Traffic
Control Zones? Correct Answer: Rerouting traffic around the work site, positioning of law
enforcement officers in the temporary traffic control zone, and work zone training.
What key factors would you need to address when developing an S.O.P. for Lift Station failure?
Correct Answer: Traffic control plan, by-pass connections, and spill containment.
"Spring Blades" are a type of tool used with: Correct Answer: Power Rodder
, Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: Correct Answer:
Sewer rodding
What tool would you use to cut VCP pipe? Correct Answer: Chain pipe cutter
Which conditions should a gas detection device test for? Correct Answer: Hydrogen Sulfide,
explosive/flammable gases, oxygen.
What does "LEL" mean on a gas detection meter? Correct Answer: Lower explosive limit
The oxygen level alarm in a gas detection meter is normally set to go off at oxygen levels below:
Correct Answer: 19.5%
When developing an S.O.P. for scheduled maintenance of electrical equipment, what program
should be addressed as a primary safety guideline? Correct Answer: The L.O.T.O. (Lock Out
Tag Out) Program
What document would you require to be referenced when developing an S.O.P. for hazardous
substance spill cleanup as well as spill containment? Correct Answer: M.S.D.S.
Placement of the Blower and P.P.E. are two things you would include in developing an S.O.P.
for air monitoring in a: Correct Answer: Permit Required Confined Space
According to a State Water Resources Control Board order, each Enrollee must develop and
implement a system-specific: Correct Answer: Sewer System Management Plan (SSMP)
Category 1 SSO's that discharge to a drainage channel and/or surface water must be reported
within: Correct 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, you must know: Correct Answer: the GPS
coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause odors, true or
false? Correct Answer: True
Flatter sewer line grades may cause added sewer maintenance expense and odor nuisance. The
problem is most likely caused by: Correct Answer: A decrease in velocity allowing organic and
inorganic solids to settle out
Infiltration from a high water table can be one source of excessive clear water in a collection
system, true or false? Correct Answer: True
What is the first thing to consider when selecting a solution to clear a stoppage in a sewer?
Correct Answer: Cause of stoppage
Questions with 100% Correct Answers
Why are gasoline and volatile solvents objectionable when present in a sewer? Correct Answer:
They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical
equipment unless: Correct Answer: You know what you are doing, are qualified, and are
authorized.
How many different areas of traffic zones are there when working in roadways? Correct Answer:
Five
Why should hydrogen sulfide be controlled? Correct Answer: To protect sewers and structures
from corrosion
Personnel entering a Permit Required Confined Space must have the following training: Correct
Answer: Entry and rescue procedures
To find proper protective gear before application of a product, you would: Correct Answer:
Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: Correct Answer: Hydrogen
Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean that dangerous gases are not
present because: Correct Answer: Some dangerous gases have no odor
What four conditions are necessary to create an explosion? Correct Answer: Combustible gas,
adequate oxygen, sufficient heat, and proper mixing of gas and oxygen.
What does "transition area" mean in traffic control? Correct Answer: Moves traffic out of its
normal path
The term "transition area" is one component of a: Correct Answer: Traffic Control Zone
What elements should be considered to improve worker safety in High Speed Temporary Traffic
Control Zones? Correct Answer: Rerouting traffic around the work site, positioning of law
enforcement officers in the temporary traffic control zone, and work zone training.
What key factors would you need to address when developing an S.O.P. for Lift Station failure?
Correct Answer: Traffic control plan, by-pass connections, and spill containment.
"Spring Blades" are a type of tool used with: Correct Answer: Power Rodder
, Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: Correct Answer:
Sewer rodding
What tool would you use to cut VCP pipe? Correct Answer: Chain pipe cutter
Which conditions should a gas detection device test for? Correct Answer: Hydrogen Sulfide,
explosive/flammable gases, oxygen.
What does "LEL" mean on a gas detection meter? Correct Answer: Lower explosive limit
The oxygen level alarm in a gas detection meter is normally set to go off at oxygen levels below:
Correct Answer: 19.5%
When developing an S.O.P. for scheduled maintenance of electrical equipment, what program
should be addressed as a primary safety guideline? Correct Answer: The L.O.T.O. (Lock Out
Tag Out) Program
What document would you require to be referenced when developing an S.O.P. for hazardous
substance spill cleanup as well as spill containment? Correct Answer: M.S.D.S.
Placement of the Blower and P.P.E. are two things you would include in developing an S.O.P.
for air monitoring in a: Correct Answer: Permit Required Confined Space
According to a State Water Resources Control Board order, each Enrollee must develop and
implement a system-specific: Correct Answer: Sewer System Management Plan (SSMP)
Category 1 SSO's that discharge to a drainage channel and/or surface water must be reported
within: Correct 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, you must know: Correct Answer: the GPS
coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause odors, true or
false? Correct Answer: True
Flatter sewer line grades may cause added sewer maintenance expense and odor nuisance. The
problem is most likely caused by: Correct Answer: A decrease in velocity allowing organic and
inorganic solids to settle out
Infiltration from a high water table can be one source of excessive clear water in a collection
system, true or false? Correct Answer: True
What is the first thing to consider when selecting a solution to clear a stoppage in a sewer?
Correct Answer: Cause of stoppage
