Texas Wastewater B Test Exam Questions
With Accurate Solutions Top Graded A+
2025\2026
Percent of volatile solids normally in sludge
- accurate answers-70-80%
D.O. levels in a primary clarifier
- accurate answers-0.5-1.0 MG/L
Why are precautionary measures needed around an aeration basin?
- accurate answers-undertow and turbulence
O.S.H.A. approved trench
- accurate answers-narrow excavation in which the depth is greater than the
width; the width must be less than 15 feet
What causes bulking?
- accurate answers-1. Excessive hydraulic loading,
2. Solids not promptly removed from clarifier
3. Inadequate weir length
4. Improper ratio of depth to surface area of the final clarifier
What are the 5 elements of a trickling filter?
- accurate answers-1. Floor
2. under drain
3. Wall containing the filter bed
4. media
5. filter distribution arm
When and where are monthly reports submitted?
- accurate answers-by the 20th of the following month; submitted to Austin
How and when do you report a bypass?
- accurate answers-as soon as possible by phone within 24 hours; followed by
in writing within 5 working days
, What are the 5 events of stream purification?
- accurate answers-1. Pollution
2. Degradation
3. Decomposition
4. Recovery
5. Clear
What are the 2 methods for measuring D.O.?
- accurate answers-1. Winkler method
2. meter
What is needed for good communication?
- accurate answers-good listening
How much chlorine gas comes from one part liquid chlorine?
- accurate answers-450
What does the "F and M" stand for in the F:M Ratio?
- accurate answers-Food to Microorganism
What feeds the nitrification organisms?
- accurate answers-fatty volatile acids
An explosive atmosphere contains what 2 things?
- accurate answers-1. Oxygen
2. flammable gas vapor or dust
How deep should the drying bed sludge be?
- accurate answers-8-12 inches
Why is a low flow rated important when filling a drying bed?
- accurate answers-to prevent undigested sludge from breaking through the
ripe sludge blanket in the digester
Under a microscope what 2 organizms should be predominant?
- accurate answers-1. SILIATE
2. rotifers
With Accurate Solutions Top Graded A+
2025\2026
Percent of volatile solids normally in sludge
- accurate answers-70-80%
D.O. levels in a primary clarifier
- accurate answers-0.5-1.0 MG/L
Why are precautionary measures needed around an aeration basin?
- accurate answers-undertow and turbulence
O.S.H.A. approved trench
- accurate answers-narrow excavation in which the depth is greater than the
width; the width must be less than 15 feet
What causes bulking?
- accurate answers-1. Excessive hydraulic loading,
2. Solids not promptly removed from clarifier
3. Inadequate weir length
4. Improper ratio of depth to surface area of the final clarifier
What are the 5 elements of a trickling filter?
- accurate answers-1. Floor
2. under drain
3. Wall containing the filter bed
4. media
5. filter distribution arm
When and where are monthly reports submitted?
- accurate answers-by the 20th of the following month; submitted to Austin
How and when do you report a bypass?
- accurate answers-as soon as possible by phone within 24 hours; followed by
in writing within 5 working days
, What are the 5 events of stream purification?
- accurate answers-1. Pollution
2. Degradation
3. Decomposition
4. Recovery
5. Clear
What are the 2 methods for measuring D.O.?
- accurate answers-1. Winkler method
2. meter
What is needed for good communication?
- accurate answers-good listening
How much chlorine gas comes from one part liquid chlorine?
- accurate answers-450
What does the "F and M" stand for in the F:M Ratio?
- accurate answers-Food to Microorganism
What feeds the nitrification organisms?
- accurate answers-fatty volatile acids
An explosive atmosphere contains what 2 things?
- accurate answers-1. Oxygen
2. flammable gas vapor or dust
How deep should the drying bed sludge be?
- accurate answers-8-12 inches
Why is a low flow rated important when filling a drying bed?
- accurate answers-to prevent undigested sludge from breaking through the
ripe sludge blanket in the digester
Under a microscope what 2 organizms should be predominant?
- accurate answers-1. SILIATE
2. rotifers
