1. They produce an ex- Why are gasoline and volatile solvents objectionable
plosion hazard when present in a sewer?
2. You know what you You should never attempt to install, troubleshoot,
are doing, are qual- maintain, repair, or replace electrical equipment un-
ified, and are autho- less:
rized.
3. Five How many different areas of traffic zones are there
when working in roadways?
4. To protect sewers and Why should hydrogen sulfide be controlled?
structures from cor-
rosion
5. Entry and rescue pro- Personnel entering a Permit Required Confined
cedures Space must have the following training:
6. Look at the MSDS To find proper protective gear before application of a
(Material Safety Data product, you would:
Sheet)
7. Hydrogen Sulfide The gas most commonly associated with septic
(H2S) wastewater is:
8. Some dangerous gas- The lack of an unpleasant odor in a structure does not
es have no odor always mean that dangerous gases are not present
because:
9. Combustible gas, ad- What four conditions are necessary to create an ex-
equate oxygen, suffi- plosion?
cient heat, and prop-
er mixing of gas and
oxygen.
10. Moves traffic out of What does "transition area" mean in traffic control?
its normal path
11. Traffic Control Zone The term "transition area" is one component of a:
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, CWEA Collections Grade 2 Practice Test with Verified Answers
12. Rerouting traffic What elements should be considered to improve
around the work site, worker safety in High Speed Temporary Traffic Con-
positioning of law en- trol Zones?
forcement officers in
the temporary traf-
fic control zone, and
work zone training.
13. Traffic control plan, What key factors would you need to address when
by-pass connections, developing an S.O.P. for Lift Station failure?
and spill contain-
ment.
14. Power Rodder "Spring Blades" are a type of tool used with:
15. Sewer rodding Porcupine, Root Saw, and a Square Bar Cork Screw
are all tools used for:
16. Chain pipe cutter What tool would you use to cut VCP pipe?
17. Hydrogen Sul- Which conditions should a gas detection device test
fide, explosive/flam- for?
mable gases, oxygen.
18. Lower explosive limit What does "LEL" mean on a gas detection meter?
19. 19.5% The oxygen level alarm in a gas detection meter is
normally set to go off at oxygen levels below:
20. The L.O.T.O. (Lock When developing an S.O.P. for scheduled mainte-
Out Tag Out) Program nance of electrical equipment, what program should
be addressed as a primary safety guideline?
21. M.S.D.S. What document would you require to be referenced
when developing an S.O.P. for hazardous substance
spill cleanup as well as spill containment?
22. Permit Required Con- Placement of the Blower and P.P.E. are two things you
fined Space would include in developing an S.O.P. for air monitor-
ing in a:
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