Why must you always know the distance when a cleaning tool is in a sewer? -
ANSWERS-So you know where obstructions or difficulties are encountered
Emergency stoppages in pipelines may be cleared safely by use of high velocity
cleaners, true or false? - ANSWERS-True
Rodents and insects can be controlled by spraying manholes with an approved
pesticide, true or false? - ANSWERS-True
How many different areas of traffic zones are there when working in roadways? -
ANSWERS-Five
, Why should hydrogen sulfide be controlled? - ANSWERS-To protect sewers and
structures from corrosion
Why are gasoline and volatile solvents objectionable when present in a sewer? -
ANSWERS-They produce an explosion hazard
You should never attempt to install, troubleshoot, maintain, repair, or replace
electrical equipment unless: - ANSWERS-You know what you are doing, are
qualified, and are authorized.
Personnel entering a Permit Required Confined Space must have the following
training: - ANSWERS-Entry and rescue procedures
To find proper protective gear before application of a product, you would: -
ANSWERS-Look at the MSDS (Material Safety Data Sheet)
The gas most commonly associated with septic wastewater is: - ANSWERS-
Hydrogen Sulfide (H2S)
The lack of an unpleasant odor in a structure does not always mean that
dangerous gases are not present because: - ANSWERS-Some dangerous gases
have no odor
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