IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
Question 1. What is the primary objective of IPC/WHMA-A-620?
A) To specify electrical wiring color codes
B) To establish requirements for the manufacture and acceptance of
cable and wire harness assemblies
C) To define the environmental testing procedures for electronic
components
D) To set standards for software development in aerospace systems
Answer: B
Explanation: The main objective of IPC/WHMA-A-620 is to establish
consistent requirements for manufacturing and acceptance of cable
and wire harness assemblies, ensuring quality and reliability.
Question 2. Which product classification in IPC/WHMA-A-620 is most
critical and typically used in life-support or safety applications?
A) Class 1
B) Class 2
C) Class 3
D) Class 4
Answer: C
, IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
Explanation: Class 3 products are intended for critical applications such
as life-support or safety systems, requiring the highest level of quality
and reliability.
Question 3. Why is customer-supplied documentation important in
IPC/WHMA-A-620 compliance?
A) It replaces the need for visual inspection
B) It ensures the assembly meets specified requirements and facilitates
traceability
C) It reduces the need for process controls
D) It is only necessary for procurement purposes
Answer: B
Explanation: Customer documentation provides the basis for
requirements, ensuring assemblies meet specifications, and aids in
traceability and accountability.
Question 4. Which of the following best defines a "defect" in the
context of IPC/WHMA-A-620?
A) Any deviation from the design specifications that affects function or
appearance
, IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
B) A minor scratch that does not affect performance
C) An acceptable variation in color
D) A process indicator used during manufacturing
Answer: A
Explanation: A defect is any non-conformance that impacts the
function, appearance, or reliability of the assembly, requiring correction
or rejection.
Question 5. What role does a "process indicator" play in assembly
inspections?
A) It signals that the process has been completed successfully
B) It identifies potential issues that may not be defects but need
attention
C) It certifies the assembly as defect-free
D) It records the assembly time
Answer: B
Explanation: Process indicators highlight conditions or signs that could
lead to defects or issues if unaddressed, aiding in process control.
, IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
Question 6. Why is proper lighting and magnification critical during
visual inspection?
A) To increase inspection speed
B) To reduce the need for training
C) To improve detection of small defects or inconsistencies
D) To avoid eye strain
Answer: C
Explanation: Adequate lighting and magnification enhance visibility,
allowing inspectors to detect small or subtle defects that could
compromise quality.
Question 7. Which documentation element is most essential for
traceability in cable assembly manufacturing?
A) Color coding standards
B) Revision-controlled drawings and process records
C) Employee work schedules
D) Shipping labels
Answer: B
Acceptance for Cable & Wire Harness
Assemblies Exam
Question 1. What is the primary objective of IPC/WHMA-A-620?
A) To specify electrical wiring color codes
B) To establish requirements for the manufacture and acceptance of
cable and wire harness assemblies
C) To define the environmental testing procedures for electronic
components
D) To set standards for software development in aerospace systems
Answer: B
Explanation: The main objective of IPC/WHMA-A-620 is to establish
consistent requirements for manufacturing and acceptance of cable
and wire harness assemblies, ensuring quality and reliability.
Question 2. Which product classification in IPC/WHMA-A-620 is most
critical and typically used in life-support or safety applications?
A) Class 1
B) Class 2
C) Class 3
D) Class 4
Answer: C
, IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
Explanation: Class 3 products are intended for critical applications such
as life-support or safety systems, requiring the highest level of quality
and reliability.
Question 3. Why is customer-supplied documentation important in
IPC/WHMA-A-620 compliance?
A) It replaces the need for visual inspection
B) It ensures the assembly meets specified requirements and facilitates
traceability
C) It reduces the need for process controls
D) It is only necessary for procurement purposes
Answer: B
Explanation: Customer documentation provides the basis for
requirements, ensuring assemblies meet specifications, and aids in
traceability and accountability.
Question 4. Which of the following best defines a "defect" in the
context of IPC/WHMA-A-620?
A) Any deviation from the design specifications that affects function or
appearance
, IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
B) A minor scratch that does not affect performance
C) An acceptable variation in color
D) A process indicator used during manufacturing
Answer: A
Explanation: A defect is any non-conformance that impacts the
function, appearance, or reliability of the assembly, requiring correction
or rejection.
Question 5. What role does a "process indicator" play in assembly
inspections?
A) It signals that the process has been completed successfully
B) It identifies potential issues that may not be defects but need
attention
C) It certifies the assembly as defect-free
D) It records the assembly time
Answer: B
Explanation: Process indicators highlight conditions or signs that could
lead to defects or issues if unaddressed, aiding in process control.
, IPC/WHMA-A-620 Requirements &
Acceptance for Cable & Wire Harness
Assemblies Exam
Question 6. Why is proper lighting and magnification critical during
visual inspection?
A) To increase inspection speed
B) To reduce the need for training
C) To improve detection of small defects or inconsistencies
D) To avoid eye strain
Answer: C
Explanation: Adequate lighting and magnification enhance visibility,
allowing inspectors to detect small or subtle defects that could
compromise quality.
Question 7. Which documentation element is most essential for
traceability in cable assembly manufacturing?
A) Color coding standards
B) Revision-controlled drawings and process records
C) Employee work schedules
D) Shipping labels
Answer: B
