Wastewater Class 2 Ohio ABC part 2 EXAM
WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Terms in this set (167)
The fecal coliform group is C
comprised of Escherichia coli and
____________.
A) streptococcu
B) Enterobactor
C) Klebsiella
D) Citrobacter
Coliform bacteria are ____________. B
A) pathogens which cause hepatitis
B) more resistant to chlorination
than pathogenic bacteria
C) pathogens which cause typhoid
D) less resistant to chlorination than
pathogenic bacteria
,The typical air-to-solids ratio for a A
dissolved air floatation unit is
__________.
a. 0.02 to 0.04 kg/kg (0.02 to 0.04
lb/lb)
b. 10 to 40 kg/kg (10 to 40 lb/lb)
c. 0.2 to 0.4 kg/kg (0.2 to 0.4 lb/lb)
d. 1 to 5 kg/kg (1 to 5 lb/lb)
ORP stands for __________. D
a. Oxygen Recirculation Pump
b. Oxygen Reclamation Process
c. Oxygen Residual Probe
d. Oxidation-Reduction Potential
A confined space atmosphere C
contains a combustible gas. At what
percentage of the Lower Explosive
Limit (LEL) for that gas is the
atmosphere considered
"hazardous"?
19.5%
10%
15%
1%
, When using an evaporator in D
disinfection, the chlorine-pressure-
reducing valve should be located
_________________.
next to the evaporator
inside the evaporator
upstream of the evaporator
downstream of the evaporator
The vapor density of a hazardous D
gas present in a confined space is
1.15. Where is this gas likely to be
found?
at this density, the gas will dissipate
immediately
near the ceiling
equally distributed throughout the
space
near the floor
A pH drop in an aerobic digester C
can be caused by ______________.
organic underloading
hydraulic overloading
nitrification or CO2 buildup
clogging of diffusers
A "dewatering beach is a B
component of a(n) ________.
anaerobic digester
centrifuge
belt filter press
aeration basin
WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Terms in this set (167)
The fecal coliform group is C
comprised of Escherichia coli and
____________.
A) streptococcu
B) Enterobactor
C) Klebsiella
D) Citrobacter
Coliform bacteria are ____________. B
A) pathogens which cause hepatitis
B) more resistant to chlorination
than pathogenic bacteria
C) pathogens which cause typhoid
D) less resistant to chlorination than
pathogenic bacteria
,The typical air-to-solids ratio for a A
dissolved air floatation unit is
__________.
a. 0.02 to 0.04 kg/kg (0.02 to 0.04
lb/lb)
b. 10 to 40 kg/kg (10 to 40 lb/lb)
c. 0.2 to 0.4 kg/kg (0.2 to 0.4 lb/lb)
d. 1 to 5 kg/kg (1 to 5 lb/lb)
ORP stands for __________. D
a. Oxygen Recirculation Pump
b. Oxygen Reclamation Process
c. Oxygen Residual Probe
d. Oxidation-Reduction Potential
A confined space atmosphere C
contains a combustible gas. At what
percentage of the Lower Explosive
Limit (LEL) for that gas is the
atmosphere considered
"hazardous"?
19.5%
10%
15%
1%
, When using an evaporator in D
disinfection, the chlorine-pressure-
reducing valve should be located
_________________.
next to the evaporator
inside the evaporator
upstream of the evaporator
downstream of the evaporator
The vapor density of a hazardous D
gas present in a confined space is
1.15. Where is this gas likely to be
found?
at this density, the gas will dissipate
immediately
near the ceiling
equally distributed throughout the
space
near the floor
A pH drop in an aerobic digester C
can be caused by ______________.
organic underloading
hydraulic overloading
nitrification or CO2 buildup
clogging of diffusers
A "dewatering beach is a B
component of a(n) ________.
anaerobic digester
centrifuge
belt filter press
aeration basin
