IPC-A-610 Rev G Questions Correct
Answers New 2025 Exam Update
Flexible and Rigid-Flex Printed Circuitry - Solder Wicking -> Defect Class 1, 2, 3 -
Answer- ✔✔Spacing as a result of solder wicking or plating migration violate minimum
electrical clearance
Attachment -> Acceptable Class 1 - Answer- ✔✔Side overhang of flex 10-27
Attachment -> Acceptable Class 2,3 - Answer- ✔✔Side overhang10-27
Attachme - Answer- ✔✔Wetted solder is visible in 10-27
Marking - Answer- ✔✔Provides both product identification and traceability
Marking - Etched - Acceptable Class 1,2,3 - Answer- ✔✔Lines of a number or letter may
be broken provided the breaks do not make the marking illegible
Marking Etched (including hand printing) - Defect Class 1.2.3 - Answer- ✔✔Lines
forming a character are missing or broken to the extent that the character is not legible
or is likely to be confused with another character
Marking - Screened | Process Indicator - Class 1,2,3 - Answer- ✔✔Lines of a number or
letter may be broken (or the ink thin over a portion of
Marking - Screened | Defect - Class 1,2,3 - Answer- ✔✔Open areas of characters are
filled and are not legible, or are likely to be confused with another number or letter
Marking - Stamped | Acceptable - Class 1, Process Indicator - Class 2,3 - Answer- ✔✔-
Marking that has been smeared or blurred but is still legible
- Multiple stamped markings are acceptable provided the general intent can be
determined
Marking - Laser | Acceptable - Class 1, Process Indicator - Class 2,3 - Answer- ✔✔-
Multiple image is still legible
- Missing marking is not more than 10% of the character
kjlkj - Answer- ✔✔
Marking - Lables - Readability | Acceptable - Class 1,2,3 - Answer- ✔✔Spots or voids
on printed surfaces or machine is readable code as permiss
, Defect- Class 1,2,3 - Answer- ✔✔Machine readable code
- Answer- ✔✔Or barcode
- Answer- ✔✔More than 10% of the label area is peeling
Marking - Radio Frequency Identification (RFID) Tags | Target - Class 1,2,3 - Answer-
✔✔- The RFID tag is located within the specified distance from the tag reader such that
the reader can access teh RF signal
- The RFID tag is attached to the object in a manner that will not preclude transmission
of the RF signal
- Answer- ✔✔- The free-air path between the RFID tag contains
The RF signal is distorted to the extent that the data cannot be clearly discerned using
the reader
- Answer- ✔✔cleaning information
Cleanliness - Foreign Object Debris (FOD) - Answer- ✔✔Acceptable`
Cleanliness - Chlorides, Carbonates and White Residues | Defects - Class 1,2,3 -
Answer- ✔✔Metallic areas exhibit crystalline white deposit
- Answer- ✔✔- Flux residue does not inhibit visual inspection
- Flux residue does not inhibit access to test points of the assembly
- Answer- ✔✔Wet, tacky or excessive residues that
- Answer- ✔✔No-clean flux residue on any electrical
- Answer- ✔✔Colored residues or rusty appearance on metallic surfaces or hardware
- Answer- ✔✔Additional information
- Answer- ✔✔Blisters, scratches, voids that do not expose conductors and do not
pridge adjacent conductors, conductor surfaces or create a hazordous condition which
wouldallow loos
- Answer- ✔✔Blisters/flaking expose base conductor material
- Answer- ✔✔- Coating blisters/scratches/voids bridge adjacent non
- Coating blisters/scratches/voids have permitted solder bridges
Answers New 2025 Exam Update
Flexible and Rigid-Flex Printed Circuitry - Solder Wicking -> Defect Class 1, 2, 3 -
Answer- ✔✔Spacing as a result of solder wicking or plating migration violate minimum
electrical clearance
Attachment -> Acceptable Class 1 - Answer- ✔✔Side overhang of flex 10-27
Attachment -> Acceptable Class 2,3 - Answer- ✔✔Side overhang10-27
Attachme - Answer- ✔✔Wetted solder is visible in 10-27
Marking - Answer- ✔✔Provides both product identification and traceability
Marking - Etched - Acceptable Class 1,2,3 - Answer- ✔✔Lines of a number or letter may
be broken provided the breaks do not make the marking illegible
Marking Etched (including hand printing) - Defect Class 1.2.3 - Answer- ✔✔Lines
forming a character are missing or broken to the extent that the character is not legible
or is likely to be confused with another character
Marking - Screened | Process Indicator - Class 1,2,3 - Answer- ✔✔Lines of a number or
letter may be broken (or the ink thin over a portion of
Marking - Screened | Defect - Class 1,2,3 - Answer- ✔✔Open areas of characters are
filled and are not legible, or are likely to be confused with another number or letter
Marking - Stamped | Acceptable - Class 1, Process Indicator - Class 2,3 - Answer- ✔✔-
Marking that has been smeared or blurred but is still legible
- Multiple stamped markings are acceptable provided the general intent can be
determined
Marking - Laser | Acceptable - Class 1, Process Indicator - Class 2,3 - Answer- ✔✔-
Multiple image is still legible
- Missing marking is not more than 10% of the character
kjlkj - Answer- ✔✔
Marking - Lables - Readability | Acceptable - Class 1,2,3 - Answer- ✔✔Spots or voids
on printed surfaces or machine is readable code as permiss
, Defect- Class 1,2,3 - Answer- ✔✔Machine readable code
- Answer- ✔✔Or barcode
- Answer- ✔✔More than 10% of the label area is peeling
Marking - Radio Frequency Identification (RFID) Tags | Target - Class 1,2,3 - Answer-
✔✔- The RFID tag is located within the specified distance from the tag reader such that
the reader can access teh RF signal
- The RFID tag is attached to the object in a manner that will not preclude transmission
of the RF signal
- Answer- ✔✔- The free-air path between the RFID tag contains
The RF signal is distorted to the extent that the data cannot be clearly discerned using
the reader
- Answer- ✔✔cleaning information
Cleanliness - Foreign Object Debris (FOD) - Answer- ✔✔Acceptable`
Cleanliness - Chlorides, Carbonates and White Residues | Defects - Class 1,2,3 -
Answer- ✔✔Metallic areas exhibit crystalline white deposit
- Answer- ✔✔- Flux residue does not inhibit visual inspection
- Flux residue does not inhibit access to test points of the assembly
- Answer- ✔✔Wet, tacky or excessive residues that
- Answer- ✔✔No-clean flux residue on any electrical
- Answer- ✔✔Colored residues or rusty appearance on metallic surfaces or hardware
- Answer- ✔✔Additional information
- Answer- ✔✔Blisters, scratches, voids that do not expose conductors and do not
pridge adjacent conductors, conductor surfaces or create a hazordous condition which
wouldallow loos
- Answer- ✔✔Blisters/flaking expose base conductor material
- Answer- ✔✔- Coating blisters/scratches/voids bridge adjacent non
- Coating blisters/scratches/voids have permitted solder bridges
