WorksheetsSoldering
Total questions: 14
Worksheet time: 7mins
How do you test if your soldering iron is hot?
try tinning it
touch it
See if it burns something
What does soldering do?
joins metal for electrical connections
Melts metal to turn to liquid
burns items to a pattern
What is a "GOOD" solder joint?
A
C
G
F
D
The most serious issue with the solder joints shown is the following
They are "cold" joints
The joints connect to each other (short)
The copper ring is not fully coated in solder
The round shape shows poor heating of the solder
What is this?
soldering iron
solder
chip wick
flux
What is this?
soldering iron
solder
chip wick
flux
Select the picture that shows the best solder joint.
Order the steps in soldering.
Tinning
Wiping the tip on brass mesh or damp sponge
Placing the tip at the joint of lead and copper pad
Applying solder at the joint
Removing heat within 2 to 3 seconds
Reorder the following into the correct soldering procedures
Which soldering step is shown in the picture?
Clean your PCB using PCB eraser
Clean the soldering tip with a wet sponge to remove dirt and oxide
Place the component to be soldered in position on the board. Verify that the component is positioned correctly before soldering.
Move soldering iron until tip is touching wire
The components shown are?
Resistors
Capacitors
Wires
Inductors
The perfect soldered joint should be what shape?
Volcano
Round
Square
Triangular
What does flux do?
It removes old solder
It keeps the soldering iron clean and dry
It keeps surfaces clean and helps the soldering process
It is used as a desoldering tool
What are "BAD" solder joints? Select two!
E
C
G
D
