CWEA Exam with Right Solutions
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.
What is the proper definition of an engine? - ✅✅ it is a machine designed to
convert energy into useful mechanical motion
What is required for a sealed ball bearing? - ✅✅ It does not need to be lubricated
under normal use
, What is the purpose of a breakaway switch? - ✅✅ To apply the brakes on a
trailer in the event of a trailer release from a vehicle
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
instrument? - ✅✅ 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 safety
of permitted confined 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
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.
What is the proper definition of an engine? - ✅✅ it is a machine designed to
convert energy into useful mechanical motion
What is required for a sealed ball bearing? - ✅✅ It does not need to be lubricated
under normal use
, What is the purpose of a breakaway switch? - ✅✅ To apply the brakes on a
trailer in the event of a trailer release from a vehicle
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
instrument? - ✅✅ 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 safety
of permitted confined 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
