CWEA Collections Grade 2 Practice Test Questions and
Answers () | 100% Correct Verified Answers A+
Why are gasoline and volatile solvents objectionable when present in a sewer? - ACCURATE ANS They
produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical equipment
unless: - ACCURATE ANS You know what you are doing, are qualified, and are authorized.
How many different areas of traffic zones are there when working in roadways? - ACCURATE ANS Five
Why should hydrogen sulfide be controlled? - ACCURATE ANS To protect sewers and structures from
corrosion
Personnel entering a Permit Required Confined Space must have the following training: - ACCURATE
ANS Entry and rescue procedures
To find proper protective gear before application of a product, you would: - ACCURATE ANS Look at the
MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: - ACCURATE ANS Hydrogen Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean that dangerous gases are not
present because: - ACCURATE ANS Some dangerous gases have no odor
What four conditions are necessary to create an explosion? - ACCURATE ANS Combustible gas, adequate
oxygen, sufficient heat, and proper mixing of gas and oxygen.
What does "transition area" mean in traffic control? - ACCURATE ANS Moves traffic out of its normal
path
, The term "transition area" is one component of a: - ACCURATE ANS Traffic Control Zone
What elements should be considered to improve worker safety in High Speed Temporary Traffic Control
Zones? - ACCURATE ANS 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? -
ACCURATE ANS Traffic control plan, by-pass connections, and spill containment.
"Spring Blades" are a type of tool used with: - ACCURATE ANS Power Rodder
Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: - ACCURATE ANS Sewer rodding
What tool would you use to cut VCP pipe? - ACCURATE ANS Chain pipe cutter
Which conditions should a gas detection device test for? - ACCURATE ANS Hydrogen Sulfide,
explosive/flammable gases, oxygen.
What does "LEL" mean on a gas detection meter? - ACCURATE ANS Lower explosive limit
The oxygen level alarm in a gas detection meter is normally set to go off at oxygen levels below: -
ACCURATE ANS 19.5%
When developing an S.O.P. for scheduled maintenance of electrical equipment, what program should be
addressed as a primary safety guideline? - ACCURATE ANS 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? - ACCURATE ANS 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: - ACCURATE ANS Permit Required Confined Space
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