The Wastewater Treatment B Test questions with|| || || || || || ||
verified detailed solutions || ||
Liftstations at a treatment plant or those which discharge directly to a treatment plant with
|| || || || || || || || || || || || || || ||
an average flow greater than 0.1 MGD shall have three or more pumps or have
|| || || || || || || || || || || || || || ||
automatically controlled variable capacity pumps, these pumps should be adjusted to actual || || || || || || || || || || || ||
flow conditions and controlled to operate so as to: - correct answer✔✔Minimize surges in
|| || || || || || || || || || || || || ||
the treatment in the treatment units.
|| || || || ||
In the contact stabilization system of activated sludge treatment, the detention time in the
|| || || || || || || || || || || || || ||
contact zone is designed be _______ other types of activated sludge treatment. - correct
|| || || || || || || || || || || || || ||
answer✔✔shorter than ||
According to current TCEQ wastewater operator certification rules, an operator can renew a
|| || || || || || || || || || || ||
Class D Wastewater Treatment Plant Operator if he or she:
|| || || || || || || || || || ||
A) Works only in a collection system
|| || || || || ||
B) Is an operator at an activated sludge plant
|| || || || || || || ||
C) Is an operator at a trickling filter treatment facility with a permitted daily average flow of
|| || || || || || || || || || || || || || || ||
0.15 MGD.
|| ||
D) Both A and C.
|| || || ||
E) None of the Above - correct answer✔✔None of the Above
|| || || || || || || || || ||
If a Leak is suspected in an off-line, back-up, one-ton chlorine cylinder, after putting on
|| || || || || || || || || || || || || || ||
proper safety equipment, the operator should first: - correct answer✔✔Call appropriate
|| || || || || || || || || || ||
emergency response personnel. || ||
The definition of an oxygen-deficient atmosphere is one that contains less than ________
|| || || || || || || || || || || || ||
percent oxygen. - correct answer✔✔19.5 || || || ||
, A combustible atmosphere: - correct answer✔✔contains oxygen and flammable gas, vapor,
|| || || || || || || || || || ||
or dust
||
All of the following EXCEPT ________ are damaging or irritating to the mucus membranes
|| || || || || || || || || || || || || ||
or lungs if inhaled:
|| || ||
A) Ozone ||
B) Lime Dust
|| ||
C) Chlorine Gas
|| || ||
D) Carbon Dioxide
|| || ||
E) Ferric Chloride Dust - correct answer✔✔Ozone
|| || || || || ||
The Sludge Volume Index (SVI) is: - correct answer✔✔the volume of settled sludge (30-
|| || || || || || || || || || || || ||
minutes) in ml/L times 1000, divided by the concentration in mg/L of MLSS.
|| || || || || || || || || || || ||
Biomonitoring - correct answer✔✔Involves the use of aquatic life to test the toxicity of a|| || || || || || || || || || || || || || ||
wastewater treatment plant effluent. || || ||
A 24-Hour composite sample was tested for chlorine residual and found to contain none.
|| || || || || || || || || || || || || ||
These results indicate that: - correct answer✔✔Residual chlorine was NOT present during
|| || || || || || || || || || || ||
the 24-hour period.
|| ||
In an activated sludge treatment plant, the 30 minute settleability test indicates:
|| || || || || || || || || || ||
A) The clarity of the effluent
|| || || || ||
B) The influence of surface tension settling
|| || || || || ||
C) The current settling capabilities in the clarifier
|| || || || || || ||
D) The ability of the organisms to flocculate and settle.
|| || || || || || || || ||
verified detailed solutions || ||
Liftstations at a treatment plant or those which discharge directly to a treatment plant with
|| || || || || || || || || || || || || || ||
an average flow greater than 0.1 MGD shall have three or more pumps or have
|| || || || || || || || || || || || || || ||
automatically controlled variable capacity pumps, these pumps should be adjusted to actual || || || || || || || || || || || ||
flow conditions and controlled to operate so as to: - correct answer✔✔Minimize surges in
|| || || || || || || || || || || || || ||
the treatment in the treatment units.
|| || || || ||
In the contact stabilization system of activated sludge treatment, the detention time in the
|| || || || || || || || || || || || || ||
contact zone is designed be _______ other types of activated sludge treatment. - correct
|| || || || || || || || || || || || || ||
answer✔✔shorter than ||
According to current TCEQ wastewater operator certification rules, an operator can renew a
|| || || || || || || || || || || ||
Class D Wastewater Treatment Plant Operator if he or she:
|| || || || || || || || || || ||
A) Works only in a collection system
|| || || || || ||
B) Is an operator at an activated sludge plant
|| || || || || || || ||
C) Is an operator at a trickling filter treatment facility with a permitted daily average flow of
|| || || || || || || || || || || || || || || ||
0.15 MGD.
|| ||
D) Both A and C.
|| || || ||
E) None of the Above - correct answer✔✔None of the Above
|| || || || || || || || || ||
If a Leak is suspected in an off-line, back-up, one-ton chlorine cylinder, after putting on
|| || || || || || || || || || || || || || ||
proper safety equipment, the operator should first: - correct answer✔✔Call appropriate
|| || || || || || || || || || ||
emergency response personnel. || ||
The definition of an oxygen-deficient atmosphere is one that contains less than ________
|| || || || || || || || || || || || ||
percent oxygen. - correct answer✔✔19.5 || || || ||
, A combustible atmosphere: - correct answer✔✔contains oxygen and flammable gas, vapor,
|| || || || || || || || || || ||
or dust
||
All of the following EXCEPT ________ are damaging or irritating to the mucus membranes
|| || || || || || || || || || || || || ||
or lungs if inhaled:
|| || ||
A) Ozone ||
B) Lime Dust
|| ||
C) Chlorine Gas
|| || ||
D) Carbon Dioxide
|| || ||
E) Ferric Chloride Dust - correct answer✔✔Ozone
|| || || || || ||
The Sludge Volume Index (SVI) is: - correct answer✔✔the volume of settled sludge (30-
|| || || || || || || || || || || || ||
minutes) in ml/L times 1000, divided by the concentration in mg/L of MLSS.
|| || || || || || || || || || || ||
Biomonitoring - correct answer✔✔Involves the use of aquatic life to test the toxicity of a|| || || || || || || || || || || || || || ||
wastewater treatment plant effluent. || || ||
A 24-Hour composite sample was tested for chlorine residual and found to contain none.
|| || || || || || || || || || || || || ||
These results indicate that: - correct answer✔✔Residual chlorine was NOT present during
|| || || || || || || || || || || ||
the 24-hour period.
|| ||
In an activated sludge treatment plant, the 30 minute settleability test indicates:
|| || || || || || || || || || ||
A) The clarity of the effluent
|| || || || ||
B) The influence of surface tension settling
|| || || || || ||
C) The current settling capabilities in the clarifier
|| || || || || || ||
D) The ability of the organisms to flocculate and settle.
|| || || || || || || || ||
