CWEA Collec on Systems Maintenance Prac ce
Ques ons for CWEA Grade 1 and 2 Tests Newest 100%
verified correct new!!
Why are gasoline and vola le solvents objec onable when present in a sewer? - Ans They
produce an explosion hazard
You should never a empt to install, maintain, repair or replace electrical equipment panels,
controls, wiring or circuits unless - Ans You know what you are doing, are qualified and are
authorized
What are the different areas of traffic zones? - Ans Advance Warning Area, Transi on Area,
Ac vity Area (buffer space and work space), Termina on Area. Could be 4 or 5, jus fy your
answer on the test!
why should hydrogen sulfide be controlled? - Ans to protect from corrosion and odors
Personnel entering a Permit Required Confined Space must have the following training - Ans
entry and rescue
To find protec ve gear before applica on of a product, you should: - Ans look at the MSDS
The gas most commonly associated with sep c wastewater is - Ans Hydrogen Sulfide
The lack of an unpleasant odor in a manhole, li6 sta on or other structures does not always
mean that dangerous gases are not present because: - Ans some dangerous gasses are odorless
(for example, carbon monoxide)
, What are the four condi ons necessary to create an explosion? - Ans combus ble gas,
adequate oxygen, heat and proper mixing of gas and oxygen
what does the "transi on area" mean in traffic control? - Ans It moves traffic out of its normal
path
what elements should be considered to improve worker safety in High speed Temporary Traffic
control Zones? - Ans Rerou ng traffic around the work site, posi oning of law enforcement
officers in the temporary traffic control zone, and work zone training
What key features would you need to address when developing an S.O.P. for a Li6 Sta on
failure? - Ans Traffic Control Plan, By-Pass connec ons, and Spill containment
What tools are used with a power rodder? - Ans Spring Blades
Tools used for sewer rodding include: - Ans porcupine, root saw, square bar cork screw
What tool would you use to cut VCP pipe? - Ans Chain Pipe Cu er
Which condi ons should a gas detec on device test for? - Ans Hydrogen sulfide,
explosive/flammable gases, oxygen
What does "LEL" mean on a gas detec on meter? - Ans Lower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below: - Ans 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? - Ans The L.O.T.O Program
Ques ons for CWEA Grade 1 and 2 Tests Newest 100%
verified correct new!!
Why are gasoline and vola le solvents objec onable when present in a sewer? - Ans They
produce an explosion hazard
You should never a empt to install, maintain, repair or replace electrical equipment panels,
controls, wiring or circuits unless - Ans You know what you are doing, are qualified and are
authorized
What are the different areas of traffic zones? - Ans Advance Warning Area, Transi on Area,
Ac vity Area (buffer space and work space), Termina on Area. Could be 4 or 5, jus fy your
answer on the test!
why should hydrogen sulfide be controlled? - Ans to protect from corrosion and odors
Personnel entering a Permit Required Confined Space must have the following training - Ans
entry and rescue
To find protec ve gear before applica on of a product, you should: - Ans look at the MSDS
The gas most commonly associated with sep c wastewater is - Ans Hydrogen Sulfide
The lack of an unpleasant odor in a manhole, li6 sta on or other structures does not always
mean that dangerous gases are not present because: - Ans some dangerous gasses are odorless
(for example, carbon monoxide)
, What are the four condi ons necessary to create an explosion? - Ans combus ble gas,
adequate oxygen, heat and proper mixing of gas and oxygen
what does the "transi on area" mean in traffic control? - Ans It moves traffic out of its normal
path
what elements should be considered to improve worker safety in High speed Temporary Traffic
control Zones? - Ans Rerou ng traffic around the work site, posi oning of law enforcement
officers in the temporary traffic control zone, and work zone training
What key features would you need to address when developing an S.O.P. for a Li6 Sta on
failure? - Ans Traffic Control Plan, By-Pass connec ons, and Spill containment
What tools are used with a power rodder? - Ans Spring Blades
Tools used for sewer rodding include: - Ans porcupine, root saw, square bar cork screw
What tool would you use to cut VCP pipe? - Ans Chain Pipe Cu er
Which condi ons should a gas detec on device test for? - Ans Hydrogen sulfide,
explosive/flammable gases, oxygen
What does "LEL" mean on a gas detec on meter? - Ans Lower Explosive Limit
The oxygen level alarm normally goes off if oxygen levels are below: - Ans 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? - Ans The L.O.T.O Program
