CWEA COLLECTIONS GRADE 2 PRACTICE TEST EXAM QUESTIONS
WITH ACCURATE ANSWERS | LATEST UPDATE .
Why are gasoline and volatile solvents objectionable when present in a sewer? - correct Answers
-They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical
equipment unless: - correct Answers -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
Answers -Five
Why should hydrogen sulfide be controlled? - correct Answers -To protect sewers and structures
from corrosion
Personnel entering a Permit Required Confined Space must have the following training: - correct
Answers -Entry and rescue procedures
To find proper protective gear before application of a product, you would: - correct Answers -
Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: - correct Answers -Hydrogen
Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean that dangerous gases are not
present because: - correct Answers -Some dangerous gases have no odor
What four conditions are necessary to create an explosion? - correct Answers -Combustible gas,
adequate oxygen, sufficient heat, and proper mixing of gas and oxygen.
1
, What does "transition area" mean in traffic control? - correct Answers -Moves traffic out of its
normal path
The term "transition area" is one component of a: - correct Answers -Traffic Control Zone
What elements should be considered to improve worker safety in High Speed Temporary Traffic
Control Zones? - correct Answers -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 Answers -Traffic control plan, by-pass connections, and spill containment.
"Spring Blades" are a type of tool used with: - correct Answers -Power Rodder
Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: - correct Answers -
Sewer rodding
What tool would you use to cut VCP pipe? - correct Answers -Chain pipe cutter
Which conditions should a gas detection device test for? - correct Answers -Hydrogen Sulfide,
explosive/flammable gases, oxygen.
What does "LEL" mean on a gas detection meter? - correct Answers -Lower explosive limit
The oxygen level alarm in a gas detection meter is normally set to go off at oxygen levels below:
- correct Answers -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 Answers -The L.O.T.O. (Lock Out
Tag Out) Program
2
WITH ACCURATE ANSWERS | LATEST UPDATE .
Why are gasoline and volatile solvents objectionable when present in a sewer? - correct Answers
-They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical
equipment unless: - correct Answers -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
Answers -Five
Why should hydrogen sulfide be controlled? - correct Answers -To protect sewers and structures
from corrosion
Personnel entering a Permit Required Confined Space must have the following training: - correct
Answers -Entry and rescue procedures
To find proper protective gear before application of a product, you would: - correct Answers -
Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: - correct Answers -Hydrogen
Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean that dangerous gases are not
present because: - correct Answers -Some dangerous gases have no odor
What four conditions are necessary to create an explosion? - correct Answers -Combustible gas,
adequate oxygen, sufficient heat, and proper mixing of gas and oxygen.
1
, What does "transition area" mean in traffic control? - correct Answers -Moves traffic out of its
normal path
The term "transition area" is one component of a: - correct Answers -Traffic Control Zone
What elements should be considered to improve worker safety in High Speed Temporary Traffic
Control Zones? - correct Answers -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 Answers -Traffic control plan, by-pass connections, and spill containment.
"Spring Blades" are a type of tool used with: - correct Answers -Power Rodder
Porcupine, Root Saw, and a Square Bar Cork Screw are all tools used for: - correct Answers -
Sewer rodding
What tool would you use to cut VCP pipe? - correct Answers -Chain pipe cutter
Which conditions should a gas detection device test for? - correct Answers -Hydrogen Sulfide,
explosive/flammable gases, oxygen.
What does "LEL" mean on a gas detection meter? - correct Answers -Lower explosive limit
The oxygen level alarm in a gas detection meter is normally set to go off at oxygen levels below:
- correct Answers -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 Answers -The L.O.T.O. (Lock Out
Tag Out) Program
2
