2026 QUESTIONS WITH SOLUTIONS UPDATED
STUDY GUIDE
◉ At low concentrations, hydrogen sulfide smells like. Answer: Rotten
Eggs
◉ which safety hazard in a collection system operations can be detected
by an insturment. Answer: Toxic Gases
◉ What must be checked first before entering a manhole. Answer:
Proper barricades or warning devices around manhole.
◉ When should field crews use signs and cones. Answer: When over
half the street is blocked.
◉ The different zones of traffic control include. Answer: buffer
◉ Elements of defensive driving include. Answer: having your vehicle
under control