TX WWTP B LICENSE EXAM WITH CORRECT ANSWERS
1.each person contributes about pounds of BOD daily: 0.17
2.a ladder must be within feet of anyone in a trench: 25
3.Examples of point source discharges include which of the following:
Munic- ipal, industrial, and agricultural wastewater treatment facilities
4.Protecting Texas water from contamination requires which of the
following of wastewater: Collection and transportation to treatment,
treatment that removes contaminants, processing and disposal of solids
5.Which of the following are normal operator controls of activated
sludge process: RAS, WAS, DO
6.Ponding on a trickling filter is caused by which of the following:
Excessive zoogleal growth,
Improper media ,
Poor primary treatment
7.Organic loading is the pounds per day of per acre feet or 1000
cubic feet of media: BOD
8.An ultrasonic flow monitoring device works on the principle of :-
sonar
9.The primary causes of waste water stoppages are : Roots
and grease
10.What is the range of the ph scale: 0-14
11.When an accidental discharge, bypass, or spill occurs, the discharger
must notify TCEQ within how long: 24 hours
12.An administrative penalty for discharging violations can be up to
per day: $25000
13.When chlorine is used, the effective disinfectant is : HOCL
,14.one surface acre of ponds provides treatment for how many people: 300
15.Examples of waterborne pathogens are: Typhoid, cholera, and dysenter
16.When sludge in an imhoff tank is near inches of the slot,
withdraw sludge: 18
17.A weir is an obstruction placed in a channel causing the water to what: -
Backup
18.The most important problem prevented by monitoring or restricting
indus- trial waste is : Worker exposure
19.Excavations Feet or deeper should be shored, shielded,
or sloped: 5
20.The primary purpose of returning sludge in the activated sludge process
is to have enough in the aeration basin to match the food
supply-
: Micro organisms
,21.A simple method of determining when to dump waste from an
activated sludge plant is the : 30 minutes settling test
22. imhoff tanks are story units with
components: two , three
23.Aerobic digestion is a process whereby the Aerobic
bacteria consumes themselves: endogenous
24.in a well operated anaerobic digester the methane gas content is about
: 65-75%
25.Organic loading of a stabilization pond is about pounds of
BOD/acre/day with a detention time of at least days: 35 ; 30
26.Gas chlorinator feed rates are indicated by the in pounds per
day: Rotameter
27.Disease causing microorganisms are called : pathogens
28.Types of industrial waste are flammable oil, toxic gases, :
Acids, and alkalis
29.The bod test indicates the amount of organic matter that can be
oxidized by biological and chemical action in days at
°C: 5 ; 20
30.The TCEQ set permit conditions including permit duration, quality of
dis- charge, discharge point, reporting requirements, and :
Maximum discharge
31.Which of the following applies to the discharge of untreated
wastewater into the waters of the state: It is a bypass,
it is an unauthorised discharge,
It must be reported to TCEQ within 24 hours
32.A hazardous gas that a collection worker might encounter in a manhole
is which of the following: Hydrogen sulfide,
methane,
carbon
doxide
33.the line that carries wastewater to the treatment plant is called the
line: outfall
34.Some of the primary components of a collection system are pipes,
Clean outs, grease traps, Sand traps, inverted siphons, vent pipes,
manholes, and
: lift stations
35.A allows a wastewater line to cross below a hydraulic gradient-
: Inverted siphon
36.The minimum design velocity for an inverted siphon is : 3 fps
, 37.Wastewater lines and manholes can be no closer to a waterline than
feet: 9
38.The inside diameter of a man hole must be how wide: 48"
39.Cavitation is caused by lack of : Net Positive Suction Head
1.each person contributes about pounds of BOD daily: 0.17
2.a ladder must be within feet of anyone in a trench: 25
3.Examples of point source discharges include which of the following:
Munic- ipal, industrial, and agricultural wastewater treatment facilities
4.Protecting Texas water from contamination requires which of the
following of wastewater: Collection and transportation to treatment,
treatment that removes contaminants, processing and disposal of solids
5.Which of the following are normal operator controls of activated
sludge process: RAS, WAS, DO
6.Ponding on a trickling filter is caused by which of the following:
Excessive zoogleal growth,
Improper media ,
Poor primary treatment
7.Organic loading is the pounds per day of per acre feet or 1000
cubic feet of media: BOD
8.An ultrasonic flow monitoring device works on the principle of :-
sonar
9.The primary causes of waste water stoppages are : Roots
and grease
10.What is the range of the ph scale: 0-14
11.When an accidental discharge, bypass, or spill occurs, the discharger
must notify TCEQ within how long: 24 hours
12.An administrative penalty for discharging violations can be up to
per day: $25000
13.When chlorine is used, the effective disinfectant is : HOCL
,14.one surface acre of ponds provides treatment for how many people: 300
15.Examples of waterborne pathogens are: Typhoid, cholera, and dysenter
16.When sludge in an imhoff tank is near inches of the slot,
withdraw sludge: 18
17.A weir is an obstruction placed in a channel causing the water to what: -
Backup
18.The most important problem prevented by monitoring or restricting
indus- trial waste is : Worker exposure
19.Excavations Feet or deeper should be shored, shielded,
or sloped: 5
20.The primary purpose of returning sludge in the activated sludge process
is to have enough in the aeration basin to match the food
supply-
: Micro organisms
,21.A simple method of determining when to dump waste from an
activated sludge plant is the : 30 minutes settling test
22. imhoff tanks are story units with
components: two , three
23.Aerobic digestion is a process whereby the Aerobic
bacteria consumes themselves: endogenous
24.in a well operated anaerobic digester the methane gas content is about
: 65-75%
25.Organic loading of a stabilization pond is about pounds of
BOD/acre/day with a detention time of at least days: 35 ; 30
26.Gas chlorinator feed rates are indicated by the in pounds per
day: Rotameter
27.Disease causing microorganisms are called : pathogens
28.Types of industrial waste are flammable oil, toxic gases, :
Acids, and alkalis
29.The bod test indicates the amount of organic matter that can be
oxidized by biological and chemical action in days at
°C: 5 ; 20
30.The TCEQ set permit conditions including permit duration, quality of
dis- charge, discharge point, reporting requirements, and :
Maximum discharge
31.Which of the following applies to the discharge of untreated
wastewater into the waters of the state: It is a bypass,
it is an unauthorised discharge,
It must be reported to TCEQ within 24 hours
32.A hazardous gas that a collection worker might encounter in a manhole
is which of the following: Hydrogen sulfide,
methane,
carbon
doxide
33.the line that carries wastewater to the treatment plant is called the
line: outfall
34.Some of the primary components of a collection system are pipes,
Clean outs, grease traps, Sand traps, inverted siphons, vent pipes,
manholes, and
: lift stations
35.A allows a wastewater line to cross below a hydraulic gradient-
: Inverted siphon
36.The minimum design velocity for an inverted siphon is : 3 fps
, 37.Wastewater lines and manholes can be no closer to a waterline than
feet: 9
38.The inside diameter of a man hole must be how wide: 48"
39.Cavitation is caused by lack of : Net Positive Suction Head
