1. Sewer maintenance vehicles are
ANS difficult to maneuver
2. At low concentrations, hydrogen sulfide smells like
ANS Rotten Eggs
3. which safety hazard in a collection system operations can be detected
by an insturment?
ANS Toxic Gases
4. What must be checked first before entering a manhole?
ANS Proper barricades or warning devices around manhole.
5. When should field crews use signs and cones?
ANS When over half the street is blocked.
6. The different zones of traffic control include
ANS buffer
7. Elements of defensive driving include
ANS having your vehicle under control
8. The primary function of an entry supervisor is to
ANS maintain overall saftey of permited confied space operations
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, 9. What should be the alarm set point for oxygen in an atmospheric
monitor- ing/testing device?
ANS 19.5%
10.Warning,caution,danger,on a label means
ANS Hazardous
11.MSDS means
ANS Material Data Safety Sheet
12.What is the purpose of the OSHA Hazard Communication SHeet
ANS To make sure employees know about any hazardous chemicals
they may contact
13. How can traffic be warned of your presence in the street?
ANS -
Signs,Cones,Flagman
14.What check should be preformed before driving a vehicle?
ANS Mechani- cal/Safety
15.Where will collection system operators most likely find black
windows Spiders and scorpions.
ANS Manholes
16.Typical safety hazards in collections system operations include
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