Waste Water Treatment 6C Exam Prep
Test With Correct Verified And Well
Analyzed Answers Graded A+ | 2025-
2026 Latest Update!!!
What is used for Phosphorus Testing?
Stannous Chloride
When sludge is incinerated what is the reduction in volume?
80%-90%
Four 8" pipes carry the same volume as?
One 16" pipe
In backwashing of a mixed media filter, there is a bed expansion of
how much?
10%
when water temperature increases the settling rate in a clarifier does
what?
Decreases
Before being used, a tertiary filter should be what?
Backwashed
Coliform bacteria are More or Less resistant to chlorination than
pathological bacteria?
, More
What are always required for installing couplings?
Precision Assembling Device
When an Air Flotation Unit is turned off, drain valves should be
opened when?
Only if it will be off for a long time
Industrial Discharge for pre-treatment must meet specifications
within?
3 Years
Phenolic wastes are treated with what?
Chlorine
A centrifugal pump is running hot, a decrease in flow through the
pump will do what?
Lower the Temperature
How often should air masks be inspected?
Every 6 Months
What is the order from top to bottom for filtered materials?
Coal, Sand, Garnet (CGS)
Microbial Growth rate does what?
Increase rapidly in a short period, then decreases as sludge age
increases
Wire to Water Efficiency includes which measurements?
Motor + Pump efficiency
If a trickling filter is restarted when the temp is under 55 Degrees, how
long will it take to reach full level of treatment?
4 - 9 Weeks
How do you start up an anaerobic digester?
Test With Correct Verified And Well
Analyzed Answers Graded A+ | 2025-
2026 Latest Update!!!
What is used for Phosphorus Testing?
Stannous Chloride
When sludge is incinerated what is the reduction in volume?
80%-90%
Four 8" pipes carry the same volume as?
One 16" pipe
In backwashing of a mixed media filter, there is a bed expansion of
how much?
10%
when water temperature increases the settling rate in a clarifier does
what?
Decreases
Before being used, a tertiary filter should be what?
Backwashed
Coliform bacteria are More or Less resistant to chlorination than
pathological bacteria?
, More
What are always required for installing couplings?
Precision Assembling Device
When an Air Flotation Unit is turned off, drain valves should be
opened when?
Only if it will be off for a long time
Industrial Discharge for pre-treatment must meet specifications
within?
3 Years
Phenolic wastes are treated with what?
Chlorine
A centrifugal pump is running hot, a decrease in flow through the
pump will do what?
Lower the Temperature
How often should air masks be inspected?
Every 6 Months
What is the order from top to bottom for filtered materials?
Coal, Sand, Garnet (CGS)
Microbial Growth rate does what?
Increase rapidly in a short period, then decreases as sludge age
increases
Wire to Water Efficiency includes which measurements?
Motor + Pump efficiency
If a trickling filter is restarted when the temp is under 55 Degrees, how
long will it take to reach full level of treatment?
4 - 9 Weeks
How do you start up an anaerobic digester?
