ABC Wastewater Collection Level 3 UPDATED ACTUAL Exam
Questions and CORRECT Answers | Latest Test Bank with
Verified Solutions | Grade A+
Question 1.
Turbidity in wastewater is caused by
A. color
B. dissolved calcium
C. hardness
D. finely divided suspended material
Correct Answer: D. finely divided suspended material
Question 2.
The gas most commonly associated with septic wastewater is
A. carbon dioxide
B. carbon monoxide
C. hydrogen sulfide
D. methane
Correct Answer: C. hydrogen sulfide
Question 3.
How many cubic meters per second in 10 MGD?
A. 0.44
B. 1.44
C. 4.73
D. 24.62
Correct Answer: A. 0.44
Question 4.
Mechanical ventilation of a lift station is required to
A. lower temperatures to reduce proportion of hydrogen sulfide
B. reduce chlorine demand
C. reduce corrosion
D. increase DO in raw wastewater
Correct Answer: C. reduce corrosion
Question 5.
A wet well probe is usually used for ________ determination(s) of level.
A. approximate
B. dual point
C. continuous
,D. single point
Correct Answer: D. single point
Question 6.
A pump is delivering at less than the expected rate of discharge. Which of the causes
listed below is incorrect?
A. speed of motor too low
B. pump not primed
C. impeller clogged
D. discharge head too low
Correct Answer: D. discharge head too low
Question 7.
Metal pipes often fail because of
A. back siphonage
B. browning movement
C. galvanic action
D. reverse osmosis
Correct Answer: C. galvanic action
Question 8.
When a fire hydrant is operated, it should be
A. just opened enough to have a flow
B. opened fully
C. opened halfway
D. regulated to flow required
Correct Answer: B. opened fully
Question 9.
If the pump bearings on horizontal centrifugal pumps are over lubricated, the most
important effect is that the extra lubricant
A. will result in smoother and more efficient operation of the pump
B. will not make any difference in the operation of the pump
C. will be wasted
D. shaft or shaft sleeve will be damaged
Correct Answer: D. shaft or shaft sleeve will be damaged
Question 10.
If packing is not maintained properly,
A. cavitation damage will result
, B. impeller will corrode
C. loss of suction due to air being allowed to enter pump
D. shaft or shaft sleeve will be damaged
Correct Answer: C. loss of suction due to air being allowed to enter pump
Question 11.
In certain situations, a supervisor encourages the employees to make their own
decisions. This is considered to be
A. against the rules to follow past experiences in decision-making
B. bad form since the supervisor eventually loses control
C. highly desirable, since it encourages employee growth and frees the
D. supervisor for other tasks
E. passing the buck
Correct Answer: C. highly desirable, since it encourages employee growth
Successful communication requires mutual
A. agreement
B. confusion
C. transmission
D. understanding -✓✓D. understanding
Question 12.
When a great deal of authority is delegated on many levels, an organization may be
described as
A. authoritarian
B. centralized
C. decentralized
D. unstructured
Correct Answer: C. decentralized
Question 13.
Recognition and job security are indications of
A. a good organization
B. a good supervisor
C. external morale factors
D. internal morale factors
Correct Answer: A. a good organization
Question 14.
Generally, as an individual progresses upward in management, reliance on personal
technical skill
A. changes to the more complex
Questions and CORRECT Answers | Latest Test Bank with
Verified Solutions | Grade A+
Question 1.
Turbidity in wastewater is caused by
A. color
B. dissolved calcium
C. hardness
D. finely divided suspended material
Correct Answer: D. finely divided suspended material
Question 2.
The gas most commonly associated with septic wastewater is
A. carbon dioxide
B. carbon monoxide
C. hydrogen sulfide
D. methane
Correct Answer: C. hydrogen sulfide
Question 3.
How many cubic meters per second in 10 MGD?
A. 0.44
B. 1.44
C. 4.73
D. 24.62
Correct Answer: A. 0.44
Question 4.
Mechanical ventilation of a lift station is required to
A. lower temperatures to reduce proportion of hydrogen sulfide
B. reduce chlorine demand
C. reduce corrosion
D. increase DO in raw wastewater
Correct Answer: C. reduce corrosion
Question 5.
A wet well probe is usually used for ________ determination(s) of level.
A. approximate
B. dual point
C. continuous
,D. single point
Correct Answer: D. single point
Question 6.
A pump is delivering at less than the expected rate of discharge. Which of the causes
listed below is incorrect?
A. speed of motor too low
B. pump not primed
C. impeller clogged
D. discharge head too low
Correct Answer: D. discharge head too low
Question 7.
Metal pipes often fail because of
A. back siphonage
B. browning movement
C. galvanic action
D. reverse osmosis
Correct Answer: C. galvanic action
Question 8.
When a fire hydrant is operated, it should be
A. just opened enough to have a flow
B. opened fully
C. opened halfway
D. regulated to flow required
Correct Answer: B. opened fully
Question 9.
If the pump bearings on horizontal centrifugal pumps are over lubricated, the most
important effect is that the extra lubricant
A. will result in smoother and more efficient operation of the pump
B. will not make any difference in the operation of the pump
C. will be wasted
D. shaft or shaft sleeve will be damaged
Correct Answer: D. shaft or shaft sleeve will be damaged
Question 10.
If packing is not maintained properly,
A. cavitation damage will result
, B. impeller will corrode
C. loss of suction due to air being allowed to enter pump
D. shaft or shaft sleeve will be damaged
Correct Answer: C. loss of suction due to air being allowed to enter pump
Question 11.
In certain situations, a supervisor encourages the employees to make their own
decisions. This is considered to be
A. against the rules to follow past experiences in decision-making
B. bad form since the supervisor eventually loses control
C. highly desirable, since it encourages employee growth and frees the
D. supervisor for other tasks
E. passing the buck
Correct Answer: C. highly desirable, since it encourages employee growth
Successful communication requires mutual
A. agreement
B. confusion
C. transmission
D. understanding -✓✓D. understanding
Question 12.
When a great deal of authority is delegated on many levels, an organization may be
described as
A. authoritarian
B. centralized
C. decentralized
D. unstructured
Correct Answer: C. decentralized
Question 13.
Recognition and job security are indications of
A. a good organization
B. a good supervisor
C. external morale factors
D. internal morale factors
Correct Answer: A. a good organization
Question 14.
Generally, as an individual progresses upward in management, reliance on personal
technical skill
A. changes to the more complex
