Cwea collections Grade 1 Questions and Answers (100% Correct Answers)
Cwea collections Grade 1 Questions and Answers (100% Correct Answers) Sewer maintenance vehicles are - ️️ difficult to maneuver At low concentrations, hydrogen sulfide smells like - ️️ Rotten Eggs which safety hazard in a collection system operations can be detected by an insturment? - ️️ Toxic Gases What must be checked first before entering a manhole? - ️️ Proper barricades or warning devices around manhole. When should field crews use signs and cones? - ️️ When over half the street is blocked. The different zones of traffic control include - ️️ buffer Elements of defensive driving include - ️️ having your vehicle under control The primary function of an entry supervisor is to - ️️ maintain overall saftey of permited confied space operations What should be the alarm set point for oxygen in an atmospheric monitoring/testing device? - ️️ 19.5% Warning,caution,danger,on a label means
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