WASTEWATER COLLECTION GRADE 1 TEST 2025 WITH 300
PRACTICE QUESTIONS AND CORRECT ANSWERS/
WASTEWATER TREATMENT OPERATOR GRADE 1
CERTIFICATION TEST 2025 (BRAND 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
When entering a manual, ventilation shall be procured?
A) Only before entering
B) Anytime a manhole is entered
C) Only after leaving
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 is leaking excessively around the packing gland. The operator should first try to?
A) Replace the packing gland
B) Call pump representative
C) Replace pump shaft
D) Tighten packing gland - answer-D) Tighten packing gland
Part of the maintenance required for a lift station with tipping balls is to check the ?
A) Float Cleanliness
B) Air Tube
C) Probe
D) Hydrostatic meter - answer-A) Float Cleanliness
Inspection duties that are performed weekly on a lift station include?
A) Resetting the plc
B) Calibrating the flow totalizer
C) Switching out the level controller
D) Activating the alarm to test the system - answer-D) Activating the alarm to test the system
What is the best course of action when a crew is observed working near an unsafe condition?
A) Leave before someone is injured
B) Notify the responsible government agency
C) Stop the work until the condition is corrected
D) Fix it when convenient - answer-C) Stop the work until the condition is corrected
The cylindrical part of the pipe is often called the?
A) Barrel
B) Crown
C) Bell bucket - answer-A) Barrel
, The purpose of the o&m program for the collections system equipment is to?
A) shorten lifespan of existing equipment
B) Respond to emergencies when equipment fails
C) Maintain system capacity and functionality
D) Test designs for new equipment - answer-C) Maintain system capacity and functionality
Which of the following tools are used with a power rodder?
A) Pnuematic shears
B) Root saws
C) Hydraulic cutters
D) Finger grips - answer-B) Root saws
How much psi is required to lift wastewater at a lift station 42 ft?
A) 18 psi
B) 21 psi
C) 48 psi
D) 97 psi - answer-18 psi
42/2.31 =18 psi
Float level indicator maintenance includes checking the?
A) Cables
B) Air tube
C) Probe
D) Air supply - answer-C) Probe
Two types of collection system maintenance is preventative and?
A) Corrective
B) Emergency
C) Essential
D) Intensive - answer-A) Corrective
PRACTICE QUESTIONS AND CORRECT ANSWERS/
WASTEWATER TREATMENT OPERATOR GRADE 1
CERTIFICATION TEST 2025 (BRAND 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
When entering a manual, ventilation shall be procured?
A) Only before entering
B) Anytime a manhole is entered
C) Only after leaving
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 is leaking excessively around the packing gland. The operator should first try to?
A) Replace the packing gland
B) Call pump representative
C) Replace pump shaft
D) Tighten packing gland - answer-D) Tighten packing gland
Part of the maintenance required for a lift station with tipping balls is to check the ?
A) Float Cleanliness
B) Air Tube
C) Probe
D) Hydrostatic meter - answer-A) Float Cleanliness
Inspection duties that are performed weekly on a lift station include?
A) Resetting the plc
B) Calibrating the flow totalizer
C) Switching out the level controller
D) Activating the alarm to test the system - answer-D) Activating the alarm to test the system
What is the best course of action when a crew is observed working near an unsafe condition?
A) Leave before someone is injured
B) Notify the responsible government agency
C) Stop the work until the condition is corrected
D) Fix it when convenient - answer-C) Stop the work until the condition is corrected
The cylindrical part of the pipe is often called the?
A) Barrel
B) Crown
C) Bell bucket - answer-A) Barrel
, The purpose of the o&m program for the collections system equipment is to?
A) shorten lifespan of existing equipment
B) Respond to emergencies when equipment fails
C) Maintain system capacity and functionality
D) Test designs for new equipment - answer-C) Maintain system capacity and functionality
Which of the following tools are used with a power rodder?
A) Pnuematic shears
B) Root saws
C) Hydraulic cutters
D) Finger grips - answer-B) Root saws
How much psi is required to lift wastewater at a lift station 42 ft?
A) 18 psi
B) 21 psi
C) 48 psi
D) 97 psi - answer-18 psi
42/2.31 =18 psi
Float level indicator maintenance includes checking the?
A) Cables
B) Air tube
C) Probe
D) Air supply - answer-C) Probe
Two types of collection system maintenance is preventative and?
A) Corrective
B) Emergency
C) Essential
D) Intensive - answer-A) Corrective
