CWEA COLLECTIONS SYSTEMS GRADE 2 EXAMS 2025
UPDATE STUDY BUNDLE WITH COMPLETE SOLUTIONS
| QUESTIONS AND VERIFIED ANSWERS | 100%
CORRECT | GRADE A
Why are gasoline and volatile solvents objectionable when
present in a sewer? .....ANSWER.....They produce an explosion
hazard
You should never attempt to install, troubleshoot, maintain,
repair, or replace electrical equipment unless: .....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? .....ANSWER.....Five
Why should hydrogen sulfide be controlled? .....ANSWER.....To
protect sewers and structures from corrosion
,Page 2 of 22
Personnel entering a Permit Required Confined Space must have
the following training: .....ANSWER.....Entry and rescue
procedures
To find proper protective gear before application of a product,
you would: .....ANSWER.....Look at the MSDS (Material Safety
Data Sheet)
The gas most commonly associated with septic wastewater is:
.....ANSWER.....Hydrogen Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always
mean that dangerous gases are not present because:
.....ANSWER.....Some dangerous gases have no odor
What four conditions are necessary to create an explosion?
.....ANSWER.....Combustible gas, adequate oxygen, sufficient
heat, and proper mixing of gas and oxygen.
What does "transition area" mean in traffic control?
.....ANSWER.....Moves traffic out of its normal path
, Page 3 of 22
The term "transition area" is one component of a:
.....ANSWER.....Traffic Control Zone
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 factors would you need to address when developing
an S.O.P. for Lift Station failure? .....ANSWER.....Traffic control
plan, by-pass connections, and spill containment.
"Spring Blades" are a type of tool used with:
.....ANSWER.....Power Rodder
Porcupine, Root Saw, and a Square Bar Cork Screw are all tools
used for: .....ANSWER.....Sewer rodding
What tool would you use to cut VCP pipe? .....ANSWER.....Chain
pipe cutter