1|Page
Texas Wastewater Collection System Operator Class II
Exam Questions with Correct Verified Answers and
explanations LATEST THIS YEAR -JUST
RELEASED.pdf||NEWEST EXAM!!
The best way to track all maintenance work done is
through a
A. closed circuit TV
B. polaroid system
C. tape recorder
D. work order system - Answer-D. Work order system
What is the V-notch weir best suited for measuring?
A. large constant flows
B. large irregular flows
C. small constant flows
D. small irregular flows - Answer-C. Small constant flows
Which of the following is best qualified to work on an
electrical panel?
A. maintenance man
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B. supervisor
C. electrician
D. crew leader - Answer-C. Electrician
The testing procedure where a solution is added drop by
drop until the desired change in a second solution is
observed is
A. drop addition
B. secondary ion addition
C. titration
D. zwitter ion addition - Answer-C. Titration
What are the three basic classes of hazardous
atmospheres?
A. Gaseous, liquid, combustible
B. poisonous, gaseous, toxic
C. toxic, perilous, poisonous
D. poisonous, explosive, oxygen deficient - Answer-D.
Poisonous, explosive, oxygen deficient
What is the chemical symbol for sulfuric acid?
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A. HCI
B. H2SO4
C. CaSO4
D. SuAc3 - Answer-B. H2SO4
A sewer blockage has been cleared by rodding. What
should be done to the cleared sewer next?
A. allow the sewer to rest
B. check the sewer for proper exfiltration
C. clean the sewer hydraulically to restore full capacity
D. clear the sewer with a bucket machine - Answer-C.
Clean the sewer hydraulically to restore full capacity
If an air compressor has excessive oil consumption, the
most likely cause of the problem would be
A. a broken drive coupling
B. external oil leaks
C. a faulty pump
D. worn rotor vanes - Answer-B. External oil leaks
, 4|Page
Preventative maintenance on an amp-meter includes
checking the
A. Wiring and contacts for pitting and fraying
B. Oil levels and greasing every 6 months
C. Alignment and adjusting to proper tolerances
D. Dosage and residual rates - Answer-A. Wiring and
contacts for pitting and fraying
What is the function of the bubbler control in a lift station
wet well?
A. Aerate the contents of the wet well to prevent septic
conditions
B. Measure liquid flow rate and regulate pump operations
C. Measure liquid flow rate but does not regulate pump
operations
D. Sense liquid depth in the wet well to regulate pump
operations - Answer-D. Sense liquid depth in the wet well
to regulate pump operations
At what time of the day do low flows generally occur?
A. Mid-morning
B. Afternoon
Texas Wastewater Collection System Operator Class II
Exam Questions with Correct Verified Answers and
explanations LATEST THIS YEAR -JUST
RELEASED.pdf||NEWEST EXAM!!
The best way to track all maintenance work done is
through a
A. closed circuit TV
B. polaroid system
C. tape recorder
D. work order system - Answer-D. Work order system
What is the V-notch weir best suited for measuring?
A. large constant flows
B. large irregular flows
C. small constant flows
D. small irregular flows - Answer-C. Small constant flows
Which of the following is best qualified to work on an
electrical panel?
A. maintenance man
,2|Page
B. supervisor
C. electrician
D. crew leader - Answer-C. Electrician
The testing procedure where a solution is added drop by
drop until the desired change in a second solution is
observed is
A. drop addition
B. secondary ion addition
C. titration
D. zwitter ion addition - Answer-C. Titration
What are the three basic classes of hazardous
atmospheres?
A. Gaseous, liquid, combustible
B. poisonous, gaseous, toxic
C. toxic, perilous, poisonous
D. poisonous, explosive, oxygen deficient - Answer-D.
Poisonous, explosive, oxygen deficient
What is the chemical symbol for sulfuric acid?
,3|Page
A. HCI
B. H2SO4
C. CaSO4
D. SuAc3 - Answer-B. H2SO4
A sewer blockage has been cleared by rodding. What
should be done to the cleared sewer next?
A. allow the sewer to rest
B. check the sewer for proper exfiltration
C. clean the sewer hydraulically to restore full capacity
D. clear the sewer with a bucket machine - Answer-C.
Clean the sewer hydraulically to restore full capacity
If an air compressor has excessive oil consumption, the
most likely cause of the problem would be
A. a broken drive coupling
B. external oil leaks
C. a faulty pump
D. worn rotor vanes - Answer-B. External oil leaks
, 4|Page
Preventative maintenance on an amp-meter includes
checking the
A. Wiring and contacts for pitting and fraying
B. Oil levels and greasing every 6 months
C. Alignment and adjusting to proper tolerances
D. Dosage and residual rates - Answer-A. Wiring and
contacts for pitting and fraying
What is the function of the bubbler control in a lift station
wet well?
A. Aerate the contents of the wet well to prevent septic
conditions
B. Measure liquid flow rate and regulate pump operations
C. Measure liquid flow rate but does not regulate pump
operations
D. Sense liquid depth in the wet well to regulate pump
operations - Answer-D. Sense liquid depth in the wet well
to regulate pump operations
At what time of the day do low flows generally occur?
A. Mid-morning
B. Afternoon
