Cwea collections Grade 1 Already
Passed
Sewer maintenance vehicles are ✔✔difficult to maneuver
At low concentrations, hydrogen sulfide smells like ✔✔Rotten Eggs
which safety hazard in a collection system operations c
...
Cwea collections Grade 1 Already
Passed
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 ✔✔Hazardous
MSDS means ✔✔Material Data Safety Sheet
What is the purpose of the OSHA Hazard Communication SHeet ✔✔To make sure employees
know about any hazardous chemicals they may contact
How can traffic be warned of your presence in the street? ✔✔Signs,Cones,Flagman
What check should be preformed before driving a vehicle? ✔✔Mechanical/Safety
Where will collection system operators most likely find black windows Spiders and scorpions.
✔✔Manholes
Typical safety hazards in collections system operations include ✔✔Oxygen defiency
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? ✔✔Tamper
Which type of shovel do collection system technologist use ✔✔Grit Shovel
What type of saw is used to cut asphalt? ✔✔Diamond bladed or toothed power saw
Googles, earplugs, and glove are needed when using a ✔✔Power Grinder
What type of equipment should be used to excavate a broken sewer pipe? ✔✔Backhoe
What is a mechanical means to dislodge material from a sewer? ✔✔Scraping
The formula for calculating the volume of a wet well is ✔✔V=W*L*H
Tasks preformed by a collection system operator includes: ✔✔Maintaining collection system
equipment
One cubic food per second flow is equal to ✔✔26,928 Gallons
To properly operate a power rodder ✔✔Make sure all the torque is out of it before handling.
The diameter of a wet well is 10 feet. If filled to a depth of 10 feet, it will contain approximately
✔✔Show Work = 5,872 Gallons
What is an orifice plate? ✔✔A plate with a small hole in it to restrict the flow.
[Show More]
.png)
.png)
