WASTEWATER GRADE 1 2025-250
Verified Multiple Choice and Conceptual Actual
Emended Exam Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update
(2025 NEW!!)
What device is used during sewer excavation to protect workers an consist of
portable rectangular box open at?
A) Trench box
B) Solid sleeting
C) bucket box
D) Frame shoring - ANSWER-A) Trench box
In lift stations, check valves are used on the discharge side of the centrifugal
pumps to?
A) Prevent wastewater in the suction line from flowing back into the wet well
B) Check the amount of flow from the station
C) Prevent wastewater in the discharge line from flowing back
D) Regulate the rate of wastewater flow through the discharge pipe - ANSWER-C)
Prevent wastewater in the discharge line from flowing back
Maintenance records are most important for?
,A) Showing employees emergency plans
B) Protecting agency against liability
C) Department used for personal suspension
D) Justifying salary increase - ANSWER-B) Protecting agency against liability
The purpose of an electrical lock out device is to?
A) Positively prevent the operation of an electrical circuit
B) Lock out an electrical switch box door
C) Keep the operators out of an electrical control room while maintenance is being
performed
D) Introduce electric current to a specific circuit - ANSWER-A) Positively prevent
the operation of an electrical circuit
What does the term static pressure mean?
A) Pressure expressed as a force per unit of an exerted by a body of water at rest
B) Pressure exerted by water in motion
C) Pressure less than the local atmospheric pressure at a given point
D) Pressure exerted by a vapor in a confined space - ANSWER-A) Pressure
expressed as a force per unit of an exerted by a body of water at rest
When entering a manual, ventilation shall be procured?
A) Only before entering
B) Anytime a manhole is entered
C) Only after leaving
WASTEWATER GRADE 1 2025 EXAM (2025
NEW!!)
Downloaded by Elizabeth Whitney ()
,D) only when explosive atmospheres are present - ANSWER-B) Anytime a
manhole is entered
What should a collection system operator know in order to troubleshoot?
A) How to correct process operator problems
B) How to correct equipment operational problems
C) How to prevent process operational problems
D) How to identify problems, causes, and potential solutions - ANSWER-D) How
to identify problems, causes, and potential solutions
Evidence of a chlorine leak can be detected by?
A) checking the leak gauge
B) An explosimeter
C) Spring water on suspected leaks
D) Green or reddish deposits on material - ANSWER-D) Green or reddish deposits
on material
A pump that operates continuously needs to be inspected for cleanliness and
leakage?
A) Daily
B) Weekly
C) Monthly
D) Yearly - ANSWER-A) Daily
WASTEWATER GRADE 1 2025 EXAM (2025
NEW!!)
Downloaded by Elizabeth Whitney ()
, In a pressure sensing controller, for every foot water rises in a wet well, how much
psi air will be required to overcome the water pressure?
A) 0.433 psi per foot
B) 0.866 psi per foot
C) 7.480 psi per foot
D) 8.340 psi per foot - ANSWER-A) 0.433 psi per foot
Which of the following is required for the maintenance of couplings between the
driving and driven elements?
A) Proper tuning
B) Proper Curvature
C) Proper alignment
D) Proper moisture draining - ANSWER-C) Proper alignment
Check valves are used to?
A) Stop flow in both directions
B) Regulate velocity
C) Permit flow in only one direction
D) Permit air to escape from the pipe - ANSWER-C) Permit flow in only one
direction
What common error in maintenance of bearings cause heat problems?
A) Lubricating the pump while it is not running
B) Overlubricating the bearings
WASTEWATER GRADE 1 2025 EXAM (2025
NEW!!)
Downloaded by Elizabeth Whitney ()
Verified Multiple Choice and Conceptual Actual
Emended Exam Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update
(2025 NEW!!)
What device is used during sewer excavation to protect workers an consist of
portable rectangular box open at?
A) Trench box
B) Solid sleeting
C) bucket box
D) Frame shoring - ANSWER-A) Trench box
In lift stations, check valves are used on the discharge side of the centrifugal
pumps to?
A) Prevent wastewater in the suction line from flowing back into the wet well
B) Check the amount of flow from the station
C) Prevent wastewater in the discharge line from flowing back
D) Regulate the rate of wastewater flow through the discharge pipe - ANSWER-C)
Prevent wastewater in the discharge line from flowing back
Maintenance records are most important for?
,A) Showing employees emergency plans
B) Protecting agency against liability
C) Department used for personal suspension
D) Justifying salary increase - ANSWER-B) Protecting agency against liability
The purpose of an electrical lock out device is to?
A) Positively prevent the operation of an electrical circuit
B) Lock out an electrical switch box door
C) Keep the operators out of an electrical control room while maintenance is being
performed
D) Introduce electric current to a specific circuit - ANSWER-A) Positively prevent
the operation of an electrical circuit
What does the term static pressure mean?
A) Pressure expressed as a force per unit of an exerted by a body of water at rest
B) Pressure exerted by water in motion
C) Pressure less than the local atmospheric pressure at a given point
D) Pressure exerted by a vapor in a confined space - ANSWER-A) Pressure
expressed as a force per unit of an exerted by a body of water at rest
When entering a manual, ventilation shall be procured?
A) Only before entering
B) Anytime a manhole is entered
C) Only after leaving
WASTEWATER GRADE 1 2025 EXAM (2025
NEW!!)
Downloaded by Elizabeth Whitney ()
,D) only when explosive atmospheres are present - ANSWER-B) Anytime a
manhole is entered
What should a collection system operator know in order to troubleshoot?
A) How to correct process operator problems
B) How to correct equipment operational problems
C) How to prevent process operational problems
D) How to identify problems, causes, and potential solutions - ANSWER-D) How
to identify problems, causes, and potential solutions
Evidence of a chlorine leak can be detected by?
A) checking the leak gauge
B) An explosimeter
C) Spring water on suspected leaks
D) Green or reddish deposits on material - ANSWER-D) Green or reddish deposits
on material
A pump that operates continuously needs to be inspected for cleanliness and
leakage?
A) Daily
B) Weekly
C) Monthly
D) Yearly - ANSWER-A) Daily
WASTEWATER GRADE 1 2025 EXAM (2025
NEW!!)
Downloaded by Elizabeth Whitney ()
, In a pressure sensing controller, for every foot water rises in a wet well, how much
psi air will be required to overcome the water pressure?
A) 0.433 psi per foot
B) 0.866 psi per foot
C) 7.480 psi per foot
D) 8.340 psi per foot - ANSWER-A) 0.433 psi per foot
Which of the following is required for the maintenance of couplings between the
driving and driven elements?
A) Proper tuning
B) Proper Curvature
C) Proper alignment
D) Proper moisture draining - ANSWER-C) Proper alignment
Check valves are used to?
A) Stop flow in both directions
B) Regulate velocity
C) Permit flow in only one direction
D) Permit air to escape from the pipe - ANSWER-C) Permit flow in only one
direction
What common error in maintenance of bearings cause heat problems?
A) Lubricating the pump while it is not running
B) Overlubricating the bearings
WASTEWATER GRADE 1 2025 EXAM (2025
NEW!!)
Downloaded by Elizabeth Whitney ()
