Solder Study Guide with Questions and Answers 100% Verified Latest
Released Version.
Terms in this set (48)
What is the definition of an IPC A Class 3 product requires performance-on-demand, the end-use
J-STD-001, Class 3 product? environment may be uncommonly harsh and the equipment
must function when required.
- The soldering iron should be
checked to ensure the tip is
fully inserted and
there is no damage.
- Solder should be applied to the
What is the proper
preparation and safe tip when the iron is not in use
maintenance of the soldering to prevent tip
oxidation.
iron? (an all above answer)
- Ensure iron tip is the
correct size for connection
to be soldered.
- Check and verify that the ESD
Protection date on the power
supply and the iron has not
expired
DO NOT heat solder above 850°F - Overheated solder can release lead fumes
What type of maintenance is - Work surfaces must be uncluttered, organized, & free of Foreign
required at work stations? Object Debris (FOD), such as lead clippings, solder balls, contamination,
etc.
- Verify ESD labels on benches, monitors and ionizers.
When ESD protection is required: - Report expired or missing labels immediately.
- Follow all SD requirements.
Always check the label to be sure:
Electronic Safe Static Work - the date is current
Station (SSWS) & Solder Irons - there is a procedure number
- the information is legible
Always Follow Steps In Process Do not go out of sequence unless specifically documented in the
Instructions process instructions
, What is the heat bridge - When solder is applied at the junction of the iron tip and the area to be
technique used during the soldered.
- The heat bridge allows for proper heat transfer to the connection.
hand soldering process?
What is the most important good wetting
characteristic of an acceptable
solder connection?
- Flux contained within the solder core melts at a temperature lower than
solder
What is the purpose of flux? - Flux removes oxides and other surface film on the work piece
(an all of the above answer) - Flux promotes heat transfer and reduces surface tension
- Flux shall be compatible from a cleaning process standpoint
and a chemical standpoint
- prevent birdcaging
Why are stranded wires tinned - reduce oxidation
before use? - make lead forming easier
- there is strand separation
greater than 1 strand diameter
When is a wire considered
- the strands extend beyond
birdcaged?
the outside diameter of the
wire insulation
What is the criteria for wicking SHALL NOT extend to a portion
on stranded wire? of the wire that is required to remain FLEXIBLE.
SHALL NOT exceed the limits of table 5-1. Strand damage that
Strand Damage
does not exceed limits of Table 5-1 is a PROCESS INDICATOR.
Terminal Wraps: when - Must have sufficient length to allow at least 1 FIELD REPAIR
attaching wires to posts
- Insulation SHALL NOT interfere with the solder connection
What is the minimum insulation - Insulation SHALL NOT be embedded in the solder connection
clearance when soldering - Insulation Clearance SHALL NOT permit shorting or violate
wires to terminals? minimum electrical clearance
maximum insulation clearance 2 WIRE DIAMETERS including insulation
when soldering wires to
terminals?
Minimum wrap: 180° (1/2 wrap)
What is the wrap criteria for
turret terminals? Maximum
wrap:
Released Version.
Terms in this set (48)
What is the definition of an IPC A Class 3 product requires performance-on-demand, the end-use
J-STD-001, Class 3 product? environment may be uncommonly harsh and the equipment
must function when required.
- The soldering iron should be
checked to ensure the tip is
fully inserted and
there is no damage.
- Solder should be applied to the
What is the proper
preparation and safe tip when the iron is not in use
maintenance of the soldering to prevent tip
oxidation.
iron? (an all above answer)
- Ensure iron tip is the
correct size for connection
to be soldered.
- Check and verify that the ESD
Protection date on the power
supply and the iron has not
expired
DO NOT heat solder above 850°F - Overheated solder can release lead fumes
What type of maintenance is - Work surfaces must be uncluttered, organized, & free of Foreign
required at work stations? Object Debris (FOD), such as lead clippings, solder balls, contamination,
etc.
- Verify ESD labels on benches, monitors and ionizers.
When ESD protection is required: - Report expired or missing labels immediately.
- Follow all SD requirements.
Always check the label to be sure:
Electronic Safe Static Work - the date is current
Station (SSWS) & Solder Irons - there is a procedure number
- the information is legible
Always Follow Steps In Process Do not go out of sequence unless specifically documented in the
Instructions process instructions
, What is the heat bridge - When solder is applied at the junction of the iron tip and the area to be
technique used during the soldered.
- The heat bridge allows for proper heat transfer to the connection.
hand soldering process?
What is the most important good wetting
characteristic of an acceptable
solder connection?
- Flux contained within the solder core melts at a temperature lower than
solder
What is the purpose of flux? - Flux removes oxides and other surface film on the work piece
(an all of the above answer) - Flux promotes heat transfer and reduces surface tension
- Flux shall be compatible from a cleaning process standpoint
and a chemical standpoint
- prevent birdcaging
Why are stranded wires tinned - reduce oxidation
before use? - make lead forming easier
- there is strand separation
greater than 1 strand diameter
When is a wire considered
- the strands extend beyond
birdcaged?
the outside diameter of the
wire insulation
What is the criteria for wicking SHALL NOT extend to a portion
on stranded wire? of the wire that is required to remain FLEXIBLE.
SHALL NOT exceed the limits of table 5-1. Strand damage that
Strand Damage
does not exceed limits of Table 5-1 is a PROCESS INDICATOR.
Terminal Wraps: when - Must have sufficient length to allow at least 1 FIELD REPAIR
attaching wires to posts
- Insulation SHALL NOT interfere with the solder connection
What is the minimum insulation - Insulation SHALL NOT be embedded in the solder connection
clearance when soldering - Insulation Clearance SHALL NOT permit shorting or violate
wires to terminals? minimum electrical clearance
maximum insulation clearance 2 WIRE DIAMETERS including insulation
when soldering wires to
terminals?
Minimum wrap: 180° (1/2 wrap)
What is the wrap criteria for
turret terminals? Maximum
wrap:
