Page 1 of 83
ABC WASTEWATER LEVEL 3 CERTIFICATION
EXAM - GENERAL | FREQUENTLY TESTED
QUESTIONS WITH CORRECT ANSWERS |
BRAND NEW!
To what pH should wastewater be raised to halt sulfide
production and inhibit sludge growth and biological slimes?
A. above 8.5
B. above 8.8
C. above 9.0
D. above 9.5 - ✔✔✔ correct answer > C. above 9.0
What could be the cause of excessive carbon fines in the effluent
from activated carbon column reactors?
A. carbon is being produced in the reactor due to poor
combustion
B. carbon is flowing out in the effluent due to a hole in one of the
screens
C. microscreens are breaking up the carbon floc upstream from
the reactor
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D. pin floc containing carbon is escaping from the secondary
clarifier - ✔✔✔ correct answer > B. carbon is flowing out in the effluent
due to a hole in one of the screens
A chemical analysis indicates the following substances were
present: HCO3, SO4, CO3. If you are interested in determining the
alkalinity, you would ignore the
concentration of which substance?
A. CO3
B. HCO3
C. SO4
D. none of the above - ✔✔✔ correct answer > D. none of the above
The mixed media filtration process may be terminated for
backwashing on the basis of
A. effluent turbidity
B. elapsed run time
C. total head loss
D. all of the above - ✔✔✔ correct answer > D. all of the above
The managerial function which involves devising an appropriate
system of pay is
A. controlling
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B. organizing
C. planning
D. staffing - ✔✔✔ correct answer > C. planning
For utility records and/or rate analyses purposes, customers
with similar patterns of water use are usually grouped together
into classes. Which one of the following is not generally used?
A. commercial
B. domestic
C. industrial
D. retail - ✔✔✔ correct answer > D. retail
The span of supervision is the
A. average length of time required to be in the organization
before making
supervisor
B. number of levels between the lowest employee and the boss
C. number of subordinates for each manager
D. number of supervisors in an organization - ✔✔✔ correct answer > C.
number of subordinates for each manager
If an organization's departments are organized by jobs to be
done, this is known
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as departmentation by
A. customer
B. function
C. product
D. territory - ✔✔✔ correct answer > B. function
Decentralized authority describes the process of
A. changing an organization from centralized to decentralized
again
B. delegating authority to one's superiors instead of one's
subordinates
C. delegating power for decisions to lower levels
D. retracting authority which has been previously delegated, and
probably changing
functions and duties - ✔✔✔ correct answer > C. delegating power for
decisions to lower levels
What term means that the employee reports to one specific
supervisor, and that the delegation of authority comes from one
particular supervisor to the employee?
A. unity of command
B. span of supervision
C. organizational chart
ABC WASTEWATER LEVEL 3 CERTIFICATION
EXAM - GENERAL | FREQUENTLY TESTED
QUESTIONS WITH CORRECT ANSWERS |
BRAND NEW!
To what pH should wastewater be raised to halt sulfide
production and inhibit sludge growth and biological slimes?
A. above 8.5
B. above 8.8
C. above 9.0
D. above 9.5 - ✔✔✔ correct answer > C. above 9.0
What could be the cause of excessive carbon fines in the effluent
from activated carbon column reactors?
A. carbon is being produced in the reactor due to poor
combustion
B. carbon is flowing out in the effluent due to a hole in one of the
screens
C. microscreens are breaking up the carbon floc upstream from
the reactor
,Page 2 of 83
D. pin floc containing carbon is escaping from the secondary
clarifier - ✔✔✔ correct answer > B. carbon is flowing out in the effluent
due to a hole in one of the screens
A chemical analysis indicates the following substances were
present: HCO3, SO4, CO3. If you are interested in determining the
alkalinity, you would ignore the
concentration of which substance?
A. CO3
B. HCO3
C. SO4
D. none of the above - ✔✔✔ correct answer > D. none of the above
The mixed media filtration process may be terminated for
backwashing on the basis of
A. effluent turbidity
B. elapsed run time
C. total head loss
D. all of the above - ✔✔✔ correct answer > D. all of the above
The managerial function which involves devising an appropriate
system of pay is
A. controlling
,Page 3 of 83
B. organizing
C. planning
D. staffing - ✔✔✔ correct answer > C. planning
For utility records and/or rate analyses purposes, customers
with similar patterns of water use are usually grouped together
into classes. Which one of the following is not generally used?
A. commercial
B. domestic
C. industrial
D. retail - ✔✔✔ correct answer > D. retail
The span of supervision is the
A. average length of time required to be in the organization
before making
supervisor
B. number of levels between the lowest employee and the boss
C. number of subordinates for each manager
D. number of supervisors in an organization - ✔✔✔ correct answer > C.
number of subordinates for each manager
If an organization's departments are organized by jobs to be
done, this is known
, Page 4 of 83
as departmentation by
A. customer
B. function
C. product
D. territory - ✔✔✔ correct answer > B. function
Decentralized authority describes the process of
A. changing an organization from centralized to decentralized
again
B. delegating authority to one's superiors instead of one's
subordinates
C. delegating power for decisions to lower levels
D. retracting authority which has been previously delegated, and
probably changing
functions and duties - ✔✔✔ correct answer > C. delegating power for
decisions to lower levels
What term means that the employee reports to one specific
supervisor, and that the delegation of authority comes from one
particular supervisor to the employee?
A. unity of command
B. span of supervision
C. organizational chart
