IPC-A-610H 1 General - Vocabulary Only
2025/2026 Exam Questions and Answers
| 100% Solved
primary side - 🧠ANSWER ✔✔defined by master drawing;
typically most complex side;
aka "component side" or "solder destination side"
secondary side - 🧠ANSWER ✔✔side opposite of primary side
solder source side - 🧠ANSWER ✔✔side on which solder is applied;
typically secondary side
solder destination side - 🧠ANSWER ✔✔side toward which solder flows;
typically primary side
cold solder connection - 🧠ANSWER ✔✔exhibits poor wetting;
, characterized by gray, porous appearance;
**Not Caused by Motion**
common conductors - 🧠ANSWER ✔✔conductors that have identical or redundant
functions
conductor diameter - 🧠ANSWER ✔✔outside wire diameter *not including*
insulation
wire diameter - 🧠ANSWER ✔✔outside diameter of wire *including* insulation
strand diameter - 🧠ANSWER ✔✔for stranded wires, the outside diameter of an
individual strand
electrical clearance - 🧠ANSWER ✔✔minimum spacing between noncommon
uninsulated conductors;
see *Appendix A*
engineering documentation - 🧠ANSWER ✔✔any documents that establish design
and design requirements
FOD - 🧠ANSWER ✔✔Foreign Object Debris
matter foreign to the assembly or system
2025/2026 Exam Questions and Answers
| 100% Solved
primary side - 🧠ANSWER ✔✔defined by master drawing;
typically most complex side;
aka "component side" or "solder destination side"
secondary side - 🧠ANSWER ✔✔side opposite of primary side
solder source side - 🧠ANSWER ✔✔side on which solder is applied;
typically secondary side
solder destination side - 🧠ANSWER ✔✔side toward which solder flows;
typically primary side
cold solder connection - 🧠ANSWER ✔✔exhibits poor wetting;
, characterized by gray, porous appearance;
**Not Caused by Motion**
common conductors - 🧠ANSWER ✔✔conductors that have identical or redundant
functions
conductor diameter - 🧠ANSWER ✔✔outside wire diameter *not including*
insulation
wire diameter - 🧠ANSWER ✔✔outside diameter of wire *including* insulation
strand diameter - 🧠ANSWER ✔✔for stranded wires, the outside diameter of an
individual strand
electrical clearance - 🧠ANSWER ✔✔minimum spacing between noncommon
uninsulated conductors;
see *Appendix A*
engineering documentation - 🧠ANSWER ✔✔any documents that establish design
and design requirements
FOD - 🧠ANSWER ✔✔Foreign Object Debris
matter foreign to the assembly or system
