1
IPC 620 Certification – COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <BRAND NEW VERSION 2025>
Description:
This IPC 620 Certification study guide includes a full set of verified questions with 100% accurate answers and
detailed explanations. It covers all critical topics related to cable and wire harness assemblies, including
workmanship standards, inspection guidelines, testing procedures, and documentation. Perfect for individuals
preparing for certification in the IPC/WHMA-A-620 standard.
Keywords:
IPC 620 exam
wire harness certification
cable assembly standards
verified IPC answers
workmanship inspection
harness testing procedures
industry wiring standards
IPC/WHMA-A-620 study
cable documentation exam
electronic assembly compliance
1. According to IPC/WHMA-A-620, which of the following conditions would be
acceptable for a Class 3 soldered connection in a stranded wire termination?
, 2
A) Insulation gaps exceeding two wire diameters
B) Cold solder joint with dull appearance
C) Smooth, concave fillet with visible wire strands
D) Flux residue on exposed conductor
2. What is the minimum required overlap of insulation support crimps for Class 2
crimp terminations as per IPC 620 guidelines?
A) 10% of conductor length
B) 25% of insulation diameter
C) 50% of insulation thickness
D) 75% of barrel width
3. When performing continuity testing, IPC 620 requires what minimum resistance
threshold for a passed cable?
A) 10 ohms
B) 1 ohm or less
C) 5 ohms
D) 0.1 ohms or greater
, 3
4. In a Class 3 harness, a laced bundle may have a spacing of up to what maximum
distance between ties?
A) 2 inches
B) 1 inch
C) 0.5 inch
D) 3 inches
5. Which insulation damage type is considered defect across all classes according
to IPC 620?
A) Minor chafing with no metal exposure
B) Slight discoloration due to flux vapors
C) Any conductor exposure due to cracked insulation
D) Heat shrink not fully recovered
6. What is the maximum allowable nicks in a Class 2 wire conductor during
stripping as per IPC 620?
, 4
A) None
B) 1 strand nicked
C) Less than 10% of total strands
D) Up to 20% of strands nicked
7. IPC 620 requires twisted pair cables to maintain twist integrity within what
distance from the termination for Class 3 products?
A) 1 inch
B) 0.5 inch
C) 2 inches
D) 1.5 inches
8. What is the minimum insulation clearance requirement between adjacent
terminations in Class 3 solder joints?
A) 0.015 inches
B) 0.030 inches
C) 0.005 inches
D) 0.050 inches
IPC 620 Certification – COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <BRAND NEW VERSION 2025>
Description:
This IPC 620 Certification study guide includes a full set of verified questions with 100% accurate answers and
detailed explanations. It covers all critical topics related to cable and wire harness assemblies, including
workmanship standards, inspection guidelines, testing procedures, and documentation. Perfect for individuals
preparing for certification in the IPC/WHMA-A-620 standard.
Keywords:
IPC 620 exam
wire harness certification
cable assembly standards
verified IPC answers
workmanship inspection
harness testing procedures
industry wiring standards
IPC/WHMA-A-620 study
cable documentation exam
electronic assembly compliance
1. According to IPC/WHMA-A-620, which of the following conditions would be
acceptable for a Class 3 soldered connection in a stranded wire termination?
, 2
A) Insulation gaps exceeding two wire diameters
B) Cold solder joint with dull appearance
C) Smooth, concave fillet with visible wire strands
D) Flux residue on exposed conductor
2. What is the minimum required overlap of insulation support crimps for Class 2
crimp terminations as per IPC 620 guidelines?
A) 10% of conductor length
B) 25% of insulation diameter
C) 50% of insulation thickness
D) 75% of barrel width
3. When performing continuity testing, IPC 620 requires what minimum resistance
threshold for a passed cable?
A) 10 ohms
B) 1 ohm or less
C) 5 ohms
D) 0.1 ohms or greater
, 3
4. In a Class 3 harness, a laced bundle may have a spacing of up to what maximum
distance between ties?
A) 2 inches
B) 1 inch
C) 0.5 inch
D) 3 inches
5. Which insulation damage type is considered defect across all classes according
to IPC 620?
A) Minor chafing with no metal exposure
B) Slight discoloration due to flux vapors
C) Any conductor exposure due to cracked insulation
D) Heat shrink not fully recovered
6. What is the maximum allowable nicks in a Class 2 wire conductor during
stripping as per IPC 620?
, 4
A) None
B) 1 strand nicked
C) Less than 10% of total strands
D) Up to 20% of strands nicked
7. IPC 620 requires twisted pair cables to maintain twist integrity within what
distance from the termination for Class 3 products?
A) 1 inch
B) 0.5 inch
C) 2 inches
D) 1.5 inches
8. What is the minimum insulation clearance requirement between adjacent
terminations in Class 3 solder joints?
A) 0.015 inches
B) 0.030 inches
C) 0.005 inches
D) 0.050 inches
