Florida DW Class B Exam Study Guide #2 Correct 100%
0 view 0 purchase
Course
FLORIDA WASTEWATER OPERATOR CLASS B CERTIFICATION
Institution
FLORIDA WASTEWATER OPERATOR CLASS B CERTIFICATION
Use reverse osmosis if the turbidity is less than - ANSWER 5 ntu's
If you want zero hardness then use - ANSWER Ion exchange
The ability of a reverse osmosis membrane to reject salt while permeating water - ANSWER Salt rejection
The number of people who directly report to individual supervi...
Florida DW Class B Exam Study Guide
#2 Correct 100%
Use reverse osmosis if the turbidity is less than - ANSWER 5 ntu's
If you want zero hardness then use - ANSWER Ion exchange
The ability of a reverse osmosis membrane to reject salt while permeating water -
ANSWER Salt rejection
The number of people who directly report to individual supervisor or manager refers to -
ANSWER Span of control
What is most important in planning? - ANSWER Setting goals and objectives
Operator license may be revoked if - ANSWER Operating plant unsafe and causing
unsafe harm to public, threat to public health and environment
Radionuclides surface water every ____ months - ANSWER 48 months
Radionuclides ground water every ____ months - ANSWER 48 months
Radiological contaminants - ANSWER Monitor every four years
Ground water plants conduct lab test - ANSWER Every three hours
Surface water plants test for inorganics _____ a year - ANSWER once
Jar test - ANSWER Determine proper dosage rates
Chlorine has medicine taste - ANSWER phenolic
Phosphates good for 48 hours then revert to - ANSWER Orthophosphates in distribution
system
Know that when a marble test water went to a plus .02 water that: - ANSWER Saturated
Belt filter press, dewatered by - ANSWER Gravity and pressure
Cause of lower than normal product rate flow - ANSWER Replace element or use acid
to clean
You're standing over a flash mixer monitoring water what do you look for? - ANSWER
Floc size and shape
, Recovery rate is controlled by - ANSWER Increasing feed flow
Brackish water - ANSWER 1000 to 10,000 Tds
Large light floc does not settle, and small dense floc are more likely to - ANSWER
Shearing
Most common lab test used to monitor coagulation and flocculation are: - ANSWER
Turbidity, temperature, Color, PH, and chlorine demand
Sedimentation basins have four zones - ANSWER Inlet zone, settling zone, sludge
zone, and outlet zone
The solids contact process combines the ______, _______, & _______ process into a
single basin - ANSWER Coagulation, flocculation, sedimentation
Solids contact units are very sensitive to changes in - ANSWER Influent flow &
temperature (not wind)
If the sludge concentration is too low in solids (Soupy) decrease the ____________. -
ANSWER Frequency of the sludge removal
Backwash flow rates ranging from ____ to ____ gpm sqft of filter media - ANSWER 10
to 25 gpm/sq. ft.
(Usually required to filter adequately)
What is the filtration rate that the water passes through the granular filter media -
ANSWER May vary from 2 to 10 GPM/SqFt
Filtration efficiency reductions of over __________ % can be achieved under optimal
conditions - ANSWER 99.5%
Anything that would cause membrane clog without excessive pretreatment eliminates -
ANSWER Reverse osmosis
Know XYZ management: public water systems, 40 samples, What % can be positive for
the month? - ANSWER No more than one
Ozone and chlorine dioxide pose special problems because of their instability. Both
should be produced - ANSWER On site
When chlorine is added to organic matter it makes - ANSWER Chlororganic compound
R.O. may be used if organics or color in the water.. - ANSWER Is less than 3 mg/L
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Lecchris. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
