CWEA Collection System Maintenance Grade 1 Exam QUESTIONS AND CORRECT
ANSWERS WITH RATIONALES
Exam coverage
• collection system components
• manholes
• cleaning
• inspection
• root control
• flow management
• safety
• equipment
• documentation
• maintenance practices
,1. Which choice correctly identifies the main reason that Collection systems convey
wastewater through pipes, manholes, pump stations, and related structures.. Which
answer best applies the underlying collection maintenance grade 1 principle in this
situation?
A. Collection systems convey wastewater through pipes, manholes, pump stations, and
related structures..
B. Cleaning removes deposits and obstructions using methods appropriate to the system and
conditions..
C. Inspection methods help identify defects, blockages, infiltration, and structural problems..
D. Manholes require inspection for structural condition, access, flow, and safety hazards..
Correct answer: A
Rationale: The correct choice directly states the governing principle: Collection systems
convey wastewater through pipes, manholes, pump stations, and related structures.. The
alternatives describe related concepts but do not directly answer the issue presented.
2. When evaluating a field situation, which statement best applies because Manholes
require inspection for structural condition, access, flow, and safety hazards.. Which
answer best applies the underlying collection maintenance grade 1 principle in this
situation?
A. Root control addresses vegetation intrusion using appropriate mechanical or chemical
methods and controls..
,B. Manholes require inspection for structural condition, access, flow, and safety hazards..
C. Inspection methods help identify defects, blockages, infiltration, and structural problems..
D. Cleaning removes deposits and obstructions using methods appropriate to the system and
conditions..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Manholes require
inspection for structural condition, access, flow, and safety hazards.. The alternatives describe
related concepts but do not directly answer the issue presented.
3. An inspector is reviewing this condition; which response is most appropriate
because Cleaning removes deposits and obstructions using methods appropriate to
the system and conditions.. Which answer best applies the underlying collection
maintenance grade 1 principle in this situation?
A. Root control addresses vegetation intrusion using appropriate mechanical or chemical
methods and controls..
B. Inspection methods help identify defects, blockages, infiltration, and structural problems..
C. Flow management protects workers and equipment while maintaining required system
function..
D. Cleaning removes deposits and obstructions using methods appropriate to the system and
conditions..
Correct answer: D
, Rationale: The correct choice directly states the governing principle: Cleaning removes
deposits and obstructions using methods appropriate to the system and conditions.. The
alternatives describe related concepts but do not directly answer the issue presented.
4. Which explanation best connects the requirement with its practical purpose when
Inspection methods help identify defects, blockages, infiltration, and structural
problems.. Which answer best applies the underlying collection maintenance grade 1
principle in this situation?
A. Collection work involves biological, traffic, confined-space, and equipment hazards..
B. Inspection methods help identify defects, blockages, infiltration, and structural problems..
C. Root control addresses vegetation intrusion using appropriate mechanical or chemical
methods and controls..
D. Flow management protects workers and equipment while maintaining required system
function..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Inspection methods help
identify defects, blockages, infiltration, and structural problems.. The alternatives describe
related concepts but do not directly answer the issue presented.
5. A technician must decide how to proceed; which answer is supported by the
principle that Root control addresses vegetation intrusion using appropriate
mechanical or chemical methods and controls.. Which answer best applies the
ANSWERS WITH RATIONALES
Exam coverage
• collection system components
• manholes
• cleaning
• inspection
• root control
• flow management
• safety
• equipment
• documentation
• maintenance practices
,1. Which choice correctly identifies the main reason that Collection systems convey
wastewater through pipes, manholes, pump stations, and related structures.. Which
answer best applies the underlying collection maintenance grade 1 principle in this
situation?
A. Collection systems convey wastewater through pipes, manholes, pump stations, and
related structures..
B. Cleaning removes deposits and obstructions using methods appropriate to the system and
conditions..
C. Inspection methods help identify defects, blockages, infiltration, and structural problems..
D. Manholes require inspection for structural condition, access, flow, and safety hazards..
Correct answer: A
Rationale: The correct choice directly states the governing principle: Collection systems
convey wastewater through pipes, manholes, pump stations, and related structures.. The
alternatives describe related concepts but do not directly answer the issue presented.
2. When evaluating a field situation, which statement best applies because Manholes
require inspection for structural condition, access, flow, and safety hazards.. Which
answer best applies the underlying collection maintenance grade 1 principle in this
situation?
A. Root control addresses vegetation intrusion using appropriate mechanical or chemical
methods and controls..
,B. Manholes require inspection for structural condition, access, flow, and safety hazards..
C. Inspection methods help identify defects, blockages, infiltration, and structural problems..
D. Cleaning removes deposits and obstructions using methods appropriate to the system and
conditions..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Manholes require
inspection for structural condition, access, flow, and safety hazards.. The alternatives describe
related concepts but do not directly answer the issue presented.
3. An inspector is reviewing this condition; which response is most appropriate
because Cleaning removes deposits and obstructions using methods appropriate to
the system and conditions.. Which answer best applies the underlying collection
maintenance grade 1 principle in this situation?
A. Root control addresses vegetation intrusion using appropriate mechanical or chemical
methods and controls..
B. Inspection methods help identify defects, blockages, infiltration, and structural problems..
C. Flow management protects workers and equipment while maintaining required system
function..
D. Cleaning removes deposits and obstructions using methods appropriate to the system and
conditions..
Correct answer: D
, Rationale: The correct choice directly states the governing principle: Cleaning removes
deposits and obstructions using methods appropriate to the system and conditions.. The
alternatives describe related concepts but do not directly answer the issue presented.
4. Which explanation best connects the requirement with its practical purpose when
Inspection methods help identify defects, blockages, infiltration, and structural
problems.. Which answer best applies the underlying collection maintenance grade 1
principle in this situation?
A. Collection work involves biological, traffic, confined-space, and equipment hazards..
B. Inspection methods help identify defects, blockages, infiltration, and structural problems..
C. Root control addresses vegetation intrusion using appropriate mechanical or chemical
methods and controls..
D. Flow management protects workers and equipment while maintaining required system
function..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Inspection methods help
identify defects, blockages, infiltration, and structural problems.. The alternatives describe
related concepts but do not directly answer the issue presented.
5. A technician must decide how to proceed; which answer is supported by the
principle that Root control addresses vegetation intrusion using appropriate
mechanical or chemical methods and controls.. Which answer best applies the
