EE569 IPC Test Questions Fully Solved Latest Update 2025 Already Passed
The two functions of a solder connection are - Answers Mechanical and electrical connection
An imperfect solder joint may result in - Answers Electrical failure
Keeping your workstation clean means you can - Answers Avoid contamination of the assembly
ESD damage can be controlled by - Answers Proper grounding
The primary reason not to eat or drink at your workstation is to avoid - Answers Ingesting lead
A pointed soldering iron tip should be used - Answers For small connections
When a solder joint is heated for more than 3 seconds - Answers There may be heat damage to the base
material and plated barrel
The main advantages of 63/37 eutectic solder are - Answers It melts at lower temperature and solidifies
faster
It's important to remove certain types of fluxes after hand soldering because - Answers Sticky residues
can hold electrically conductive contaminants and cause metal corrosion
Solder wetting is defined as - Answers A smooth, unbroken film of solder, feathered onto base metals
The reason it is important to use the correct solder wire diameter is - Answers For control of speed and
amount of solder
The reason for tinning the soldering iron tip is to - Answers Transfer heat rapidly
When the soldering iron contacts the cleaning sponge for too long - Answers The tip may cool down too
much and may affect the formation of a proper solder joint
Using excessive pressure when soldering can cause - Answers All of the above
We solder on the termination side of the board - away from the components - Answers To prevent heat
damage to the components
Preheating - Answers Speeds up the soldering process to help prevent heat damage to the assembly
It's important to remove the flux residue right after the soldering operation because - Answers It can
harden and become difficult to remove
If you think components may be sensitive to cleaning fluids, you should - Answers Ask about your
company specific policy if you have any questions
An ideal solder joint has - Answers A concave fillet, complete solder coverage, smooth texture, wetting
that feathers smoothly onto metals, and the outline of the lead visible
, Class 3 requirements in the J-Standard 001 are for - Answers High reliability electronics - where failure is
not an option
A cold solder joint - Answers Looks dull and grainy, and is poorly wetted
A solder bridge is - Answers An unwanted solder connection between two or more conductive features
A disturbed solder joint is caused by - Answers Movements of the solder joint after the soldering iron is
removed, but before the solder is cool enough to harden
It is important to control static electricity at your workstation in order to - Answers Avoid damage to
components
We use solder flux to - Answers All of the above
You should tin the tip of your soldering iron - Answers Both "A and "C"
When you expect your soldering iron to sit (or idle) for a while, it is important to - Answers Tin the tip
with solder to prevent oxidation
Melting a little solder on the tip - before moving the solder wire to the other side - results in - Answers
The formation of a heat bridge to transfer heat faster
Re-melting a solder joint without using flux usually results in - Answers The texture of the solder
becomes grainy, and weakening the strength of the connection
The maximum preferred solder contact angle is - Answers 90 degrees or less
What is an IPC standard? - Answers An evolving set of rules that the electronics industry follows to
develop safe, reliable and quality products
Select all statements that reflect the work of IPC today: - Answers IPC is the leading association that
serves the global electronics industry
IPC enhances member companies' knowledge and skills through training and certification programs
IPC provides innovation and advocates for solutions to industry challenges
IPC creates and revises standards for global electronics production
Select the 2 standards used on the design floor - Answers IPC-2581: Helps designers' computers speak
the same language
The two functions of a solder connection are - Answers Mechanical and electrical connection
An imperfect solder joint may result in - Answers Electrical failure
Keeping your workstation clean means you can - Answers Avoid contamination of the assembly
ESD damage can be controlled by - Answers Proper grounding
The primary reason not to eat or drink at your workstation is to avoid - Answers Ingesting lead
A pointed soldering iron tip should be used - Answers For small connections
When a solder joint is heated for more than 3 seconds - Answers There may be heat damage to the base
material and plated barrel
The main advantages of 63/37 eutectic solder are - Answers It melts at lower temperature and solidifies
faster
It's important to remove certain types of fluxes after hand soldering because - Answers Sticky residues
can hold electrically conductive contaminants and cause metal corrosion
Solder wetting is defined as - Answers A smooth, unbroken film of solder, feathered onto base metals
The reason it is important to use the correct solder wire diameter is - Answers For control of speed and
amount of solder
The reason for tinning the soldering iron tip is to - Answers Transfer heat rapidly
When the soldering iron contacts the cleaning sponge for too long - Answers The tip may cool down too
much and may affect the formation of a proper solder joint
Using excessive pressure when soldering can cause - Answers All of the above
We solder on the termination side of the board - away from the components - Answers To prevent heat
damage to the components
Preheating - Answers Speeds up the soldering process to help prevent heat damage to the assembly
It's important to remove the flux residue right after the soldering operation because - Answers It can
harden and become difficult to remove
If you think components may be sensitive to cleaning fluids, you should - Answers Ask about your
company specific policy if you have any questions
An ideal solder joint has - Answers A concave fillet, complete solder coverage, smooth texture, wetting
that feathers smoothly onto metals, and the outline of the lead visible
, Class 3 requirements in the J-Standard 001 are for - Answers High reliability electronics - where failure is
not an option
A cold solder joint - Answers Looks dull and grainy, and is poorly wetted
A solder bridge is - Answers An unwanted solder connection between two or more conductive features
A disturbed solder joint is caused by - Answers Movements of the solder joint after the soldering iron is
removed, but before the solder is cool enough to harden
It is important to control static electricity at your workstation in order to - Answers Avoid damage to
components
We use solder flux to - Answers All of the above
You should tin the tip of your soldering iron - Answers Both "A and "C"
When you expect your soldering iron to sit (or idle) for a while, it is important to - Answers Tin the tip
with solder to prevent oxidation
Melting a little solder on the tip - before moving the solder wire to the other side - results in - Answers
The formation of a heat bridge to transfer heat faster
Re-melting a solder joint without using flux usually results in - Answers The texture of the solder
becomes grainy, and weakening the strength of the connection
The maximum preferred solder contact angle is - Answers 90 degrees or less
What is an IPC standard? - Answers An evolving set of rules that the electronics industry follows to
develop safe, reliable and quality products
Select all statements that reflect the work of IPC today: - Answers IPC is the leading association that
serves the global electronics industry
IPC enhances member companies' knowledge and skills through training and certification programs
IPC provides innovation and advocates for solutions to industry challenges
IPC creates and revises standards for global electronics production
Select the 2 standards used on the design floor - Answers IPC-2581: Helps designers' computers speak
the same language
