Instruction Manual

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WORD GLOSSARY (continued)
Resistor Component used to control the flow of electricity in a circuit. It is made of carbon.
Rosin Core Solder The most common type of solder used in electronics generally referred to as 63/37
rosin core solder.
Solder A tin/lead alloy that melts at a very low temperature, used to join other metals
together. It produces excellent electrical connections.
Solder Bridge An unwanted solder connection between two points that are close together.
Solder Melting Point The temperature at which a tin/lead alloy (solder) melts. The common solder used in
electronics (63% tin / 37% lead) has a melting point of 361
O
F.
Solder Wick Braided wire coated with flux to effectively remove solder from a connection.
Soldering The process of joining two or more metals by applying solder to them.
Tack Soldering A connection where the lead or wire does not have any mechanical support.
Tinning the Tip A process of coating the soldering iron tip with solder to minimize the formation of
oxide on the tip, which would reduce the amount of heat transfer.
Transistor An electronic device that uses a small amount of current to control a large amount of
current.
Wire Gauge Refers to the size of the wire. The bigger the number, the smaller the diameter of the
wire. 18 gauge to 24 gauge is generally used for hook-up in electronics.
QUIZ
Answers: 1. B, 2. C, 3. A, 4. D, 5. B, 6. A, 7. C, 8. D, 9. D, 10. B
1. The solder supplied is comprised of what two materials?
r A. Gold and copper
r B. Tin and copper
r C. Zinc and copper
r D. Lead and aluminum
2. What type of flux should be used in electronics?
r A. Chloride
r B. Organic
r C. Rosin
r D. Corrosive
3. When working on PC boards, what wattage range of iron
is ideal?
r A. 15-40 watts
r B. 50-100 watts
r C. 1-10 watts
r D. 100-200 watts
4. Tinning the soldering tip will prevent it from . . .
r A. heating.
r B. melting.
r C. soldering.
r D. oxidizing.
5. Proper solder adhesion requires that the metal surface
to be . . .
r A. solder free.
r B. clean.
r C. greasy.
r D. cold.
6. Solder wick is used to . . .
r A. remove solder.
r B. solder in small parts.
r C. cleaning the soldering iron tip.
r D. removing flux.
7. A cold solder joint is caused by . . .
r A. a solder bridge.
r B. using 60/40 solder.
r C. insufficient heat.
r D. acid core solder.
8. When two adjacent solder joints accidentally touch, it is
called . . .
r A. a jumper.
r B. a blob.
r C. a solder hole.
r D. a solder bridge.
9. What ratio has the greatest amount of tin?
r A. 20/60
r B. 40/60
r C. 50/50
r D. 93/7
10. A good solder connection should be . . .
r A. dull and rough.
r B. shiny, bright and smooth.
r C. lumped around the connection.
r D. soldered on one side of the connection.