Wastewater collections EXAM QUESTIONS
WITH CORRECT AND VERIFIED ANSWERS.
A ph of 6.0 is? - CORRECT ANSWER✅✅✅Acidic
A pipe that carries wastewater under pressure from the discharge side of a pump to a point of gravity
flow downstream? - CORRECT ANSWER✅✅✅Force Main
A pump delivering less than the expected rate of discharge. What can cause this to happen? - CORRECT
ANSWER✅✅✅Discharge head too high
A ring shaped space located between two circular objects is known as a? - CORRECT
ANSWER✅✅✅Annular
A Venture measures quantity of fluid by? - CORRECT ANSWER✅✅✅differences in pressure
Aerobic - CORRECT ANSWER✅✅✅requires oxygen
An engineer must approve any trench shoring design above? - CORRECT ANSWER✅✅✅20 feet
Anaerobic - CORRECT ANSWER✅✅✅without oxygen
Any excavation over ________ must have a ladder for the worker to get in and out of the trench. -
CORRECT ANSWER✅✅✅4 feet
BOD - CORRECT ANSWER✅✅✅biological oxygen demand, amount of dissolved oxygen needed by
aerobic decomposers to break down organic materials
, Centrifugal pump - CORRECT ANSWER✅✅✅A non-positive displacement pump that moves a varying
amount of fluid with each rotation using an impeller blade
CIPP - CORRECT ANSWER✅✅✅Cured In Place Pipe
CMMS - CORRECT ANSWER✅✅✅Computerized Maintenance Management System
CMOM - CORRECT ANSWER✅✅✅Capacity Management Operation Maintenance program
COD - CORRECT ANSWER✅✅✅The amount of chemical oxidant required to breakdown the wastes,
also an indicator of the concentration of organics
Enclosed, open, semi closed are terms used for the designation and selection of ? - CORRECT
ANSWER✅✅✅Impellers
GIS - CORRECT ANSWER✅✅✅Geographic Information System, A computer system that stores,
organizes, analyzes, and displays geographic data.
High velocity cleaners, kites, bags, poly pigs and sewer scooters are what type of cleaning method? -
CORRECT ANSWER✅✅✅Hydraulic cleaning
how are flow velocities estimated in existing sewers flowing partially full? - CORRECT
ANSWER✅✅✅Floats
How does the sewer system confined space entry differ from other permit and non permit entries? -
CORRECT ANSWER✅✅✅There rarely exists any way to completely isolate the space
How many colors of markings are there for OUPS utility markings? - CORRECT ANSWER✅✅✅8
Hz stands for - CORRECT ANSWER✅✅✅Cycles per second
WITH CORRECT AND VERIFIED ANSWERS.
A ph of 6.0 is? - CORRECT ANSWER✅✅✅Acidic
A pipe that carries wastewater under pressure from the discharge side of a pump to a point of gravity
flow downstream? - CORRECT ANSWER✅✅✅Force Main
A pump delivering less than the expected rate of discharge. What can cause this to happen? - CORRECT
ANSWER✅✅✅Discharge head too high
A ring shaped space located between two circular objects is known as a? - CORRECT
ANSWER✅✅✅Annular
A Venture measures quantity of fluid by? - CORRECT ANSWER✅✅✅differences in pressure
Aerobic - CORRECT ANSWER✅✅✅requires oxygen
An engineer must approve any trench shoring design above? - CORRECT ANSWER✅✅✅20 feet
Anaerobic - CORRECT ANSWER✅✅✅without oxygen
Any excavation over ________ must have a ladder for the worker to get in and out of the trench. -
CORRECT ANSWER✅✅✅4 feet
BOD - CORRECT ANSWER✅✅✅biological oxygen demand, amount of dissolved oxygen needed by
aerobic decomposers to break down organic materials
, Centrifugal pump - CORRECT ANSWER✅✅✅A non-positive displacement pump that moves a varying
amount of fluid with each rotation using an impeller blade
CIPP - CORRECT ANSWER✅✅✅Cured In Place Pipe
CMMS - CORRECT ANSWER✅✅✅Computerized Maintenance Management System
CMOM - CORRECT ANSWER✅✅✅Capacity Management Operation Maintenance program
COD - CORRECT ANSWER✅✅✅The amount of chemical oxidant required to breakdown the wastes,
also an indicator of the concentration of organics
Enclosed, open, semi closed are terms used for the designation and selection of ? - CORRECT
ANSWER✅✅✅Impellers
GIS - CORRECT ANSWER✅✅✅Geographic Information System, A computer system that stores,
organizes, analyzes, and displays geographic data.
High velocity cleaners, kites, bags, poly pigs and sewer scooters are what type of cleaning method? -
CORRECT ANSWER✅✅✅Hydraulic cleaning
how are flow velocities estimated in existing sewers flowing partially full? - CORRECT
ANSWER✅✅✅Floats
How does the sewer system confined space entry differ from other permit and non permit entries? -
CORRECT ANSWER✅✅✅There rarely exists any way to completely isolate the space
How many colors of markings are there for OUPS utility markings? - CORRECT ANSWER✅✅✅8
Hz stands for - CORRECT ANSWER✅✅✅Cycles per second
