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WASTEWATER COLLECTIONS III QUESTIONS
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WASTEWATER COLLECTIONS III QUESTIONS
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WASTEWATER COLLECTIONS III QUESTIONSWastewater force main pressure rating is.
A. 75
B. 100
C. 125
D. 150
E. 200 - answers -d. 150
The most critical factors of the final grade of a gravity wastewater pipe should be?
A. Alignment
B. Choice of pipe materials
C. Choice of leveling equipment
D. Choice of excavating equipment
E. Choice of pipe bedding - answers -e. Choice of pipe bedding
Setting goals works best when?
A. Accompanied by an action plan
B. Developed by manager
C. Developed by employee - answers -c. Developed by employee
Participatory management means?
A. Listen to ideas and then take over
B. Be a member instead of a boss - answers -b. Be a member instead of a boss
Class iii collection system license or class b wastewater treatment plant operator license
is required for at least supervisor of construction and maintenance crews in wastewater
systems with average flow greater than?
A. 100,000
B. 500,000
C. 1,000,000 - answers -c. 1,000,000. Category iii collection system over 1 mgd
requires class iii or b license.
If wastewater treatment operating company ceases operation and another one takes
over from them which is true?
A. New company must immediately apply for a new certification.
B. New company must notify tnrcc within 30 days
C. Operators can continue to work by virtue of their individual certifications
, (there was a fourth choice but not remebered) - answers -a. New company must
immediately apply for a new certification
(is probably the correct answer)
Operations company are not transferable.
Every ww system operations co. Must hold a valid certificate of registration
What is the minimum structure life? - answers -50 years.
(the collection system design shall provide a minimum structural life cycle of 50 years)
How many years in the future must a designer consider the population to be served
when designing a sewer system? - answers -20 to 25 years
Twua. To figure out the population to be served initially and ultimately by the proposed
sewer for at least 20 years.
Teex wwc. Designer must consider the population to be served as far as 20 to 25 years
in the future.
Septic skudge?
A. Smells good
B. Has a sweet smell
C. More difficult to treat - answers -c. More difficult to treat
Spetic sludge causes operating problems
As traffic speeds go up around construction site, what happens to the spacing between
the warning devices? - answers -increase
This is a best guess
Frequent starts and stops of a motor causes?
A. Causes excessive wear on control circuit relays
B. Causes excessive wear on motors
C. Causes cavitation
D. Consumes less energy than a motor that operates continuously
E. Keeps solids suspended in a wet well - answers -
The primary cause od sewer stoppage is? - answers -roots and grease
When using a high velocity jet machine?
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