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CWEA Collections System Maintenance
Grade 1 – 4
CWEA Collections Grade 1
- Sewer maintenance vehicles are ANS difficult to maneuver
- At low concentrations, hydrogen sulfide smells like ANS Rotten Eggs
- which safety hazard in a collection system operations can be detected by
an insturment? ANS Toxic Gases - What must be checked first before entering a manhole? ANS Proper
barricadesor warning devices around manhole. - When should field crews use signs and cones? ANS When over half the
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street isblocked.
- The different zones of traffic control include ANS buffer
- Elements of defensive driving include ANS having your vehicle under
control - The primary function of an entry supervisor is to ANS maintain overall
saftey ofpermited confied space operations - What should be the alarm set point for oxygen in an atmospheric monitoring/testing device? ANS 19.5%
- Warning,caution,danger,on a label means ANS Hazardous
- MSDS means ANS Material Data Safety Sheet
- What is the purpose of the OSHA Hazard Communication SHeet ANS To
makesure employees know about any hazardous chemicals they may contact
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- How can traffic be warned of your presence in the street? ANS –
Signs,Cones,Flagman - What check should be preformed before driving a vehicle? ANS
Mechani-cal/Safety - Where will collection system operators most likely find black windows
Spiders and scorpions. ANS Manholes - Typical safety hazards in collections system operations include ANS
Oxygendefiency - You have an air compressor and you have been instructed to compact the
backfill in a trench. Which of the following is the best tool to use? ANS
Tamper - Which type of shovel do collection system technologist use ANS Grit
Shovel
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- What type of saw is used to cut asphalt? ANS Diamond bladed or toothed
powersaw - Googles, earplugs, and glove are needed when using a ANS Power
Grinder
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