RoyCEU Practice Questions
When Sampling for Nocardia, where would you get the Foam
best representative sample that has the bacteria?
Which preservative do you need for an ammonia nitrogen 4 Degrees C with H2SO4
sample?
After getting a fecal coliform sample, how long can you 4 hours
wait until you test the sample?
The chlorine residual is falling, and inspection of the Place a second chlorine cylinder on line
150 pound cylinder and chlorine feed equipment
shows ice forming on the chlorine regulator and feed
lines.The BEST method to fix the falling chlorine
residual is
, Throughout the week, you notice these changes in the Too much MLSS in system
settleometer at the wastewater treatment plant.What is
the reason for the slower settling times?
A Parshall flume is a great measuring device to record Upstream, 2/3 the length of the converging wall
flow rates. Where does the Parshall flume read the
measurements?
You notice that your chlorine residual is dropping. The Excessive nitrite in the effluent
DT is right in the contactor and there is no solids build
up on the tank. The chlorine supplies are not the
issue.What is the cause of the residual drop?
In a chlorine gas system, what would happen in the The diaphragm would slam shut
system if the vacuum was lost?
What does an SVI of 180 mean in a settleometer? Moderately aged sludge, typically settles more slowly but has better capture
efficiency
Electronic resistance is measured in Ohms
An anaerobic digester should be adjusted By 1 degree F per day
An operator does a BOD test of 3 mL, 5 mL, and 10 mL. There was a toxic substance in the sample
For some reason, the higher BOD samples are getting
a higher oxygen uptake reading. If the operator did all
the quality control requirements correctly, what is the
problem with the higher OUR readings?
A town that has a population of 2,286 people has an 44%
industry that puts 300 pounds of BOD into the plant.
What percent of total BOD does the industry
contribute to?
A 150 lb chlorine container should be restrained 1/3 of the way down from the top
Which emergency repair kit is used for ton containers? Kit B
A wastewater treatment plant normally runs very Increase WAS
well with an F/M ratio of 0.4 to 0.5. The lab test shows
that the F/M ratio is 0.2.What is the best action to take
to permanently increase the F/M ratio?
Water is pumped through a 12 inch main at a rate of 300 0.85 ft/s
gallons per minute.What is the velocity of the flow?
What is the correct flow pattern in a Bardenpho process? Static flow/Mix flow/Mix react
When Sampling for Nocardia, where would you get the Foam
best representative sample that has the bacteria?
Which preservative do you need for an ammonia nitrogen 4 Degrees C with H2SO4
sample?
After getting a fecal coliform sample, how long can you 4 hours
wait until you test the sample?
The chlorine residual is falling, and inspection of the Place a second chlorine cylinder on line
150 pound cylinder and chlorine feed equipment
shows ice forming on the chlorine regulator and feed
lines.The BEST method to fix the falling chlorine
residual is
, Throughout the week, you notice these changes in the Too much MLSS in system
settleometer at the wastewater treatment plant.What is
the reason for the slower settling times?
A Parshall flume is a great measuring device to record Upstream, 2/3 the length of the converging wall
flow rates. Where does the Parshall flume read the
measurements?
You notice that your chlorine residual is dropping. The Excessive nitrite in the effluent
DT is right in the contactor and there is no solids build
up on the tank. The chlorine supplies are not the
issue.What is the cause of the residual drop?
In a chlorine gas system, what would happen in the The diaphragm would slam shut
system if the vacuum was lost?
What does an SVI of 180 mean in a settleometer? Moderately aged sludge, typically settles more slowly but has better capture
efficiency
Electronic resistance is measured in Ohms
An anaerobic digester should be adjusted By 1 degree F per day
An operator does a BOD test of 3 mL, 5 mL, and 10 mL. There was a toxic substance in the sample
For some reason, the higher BOD samples are getting
a higher oxygen uptake reading. If the operator did all
the quality control requirements correctly, what is the
problem with the higher OUR readings?
A town that has a population of 2,286 people has an 44%
industry that puts 300 pounds of BOD into the plant.
What percent of total BOD does the industry
contribute to?
A 150 lb chlorine container should be restrained 1/3 of the way down from the top
Which emergency repair kit is used for ton containers? Kit B
A wastewater treatment plant normally runs very Increase WAS
well with an F/M ratio of 0.4 to 0.5. The lab test shows
that the F/M ratio is 0.2.What is the best action to take
to permanently increase the F/M ratio?
Water is pumped through a 12 inch main at a rate of 300 0.85 ft/s
gallons per minute.What is the velocity of the flow?
What is the correct flow pattern in a Bardenpho process? Static flow/Mix flow/Mix react
