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