Preview Questions PCB Assembly Technician | Role Specific Skill

Question 1: How should a soldering iron tip be maintained during operation?

Which action should you take?

Choose only one option

Always use flux

Dip in solder paste after each joint

Clean with wet sponge frequently

Heat above 500?C

Question 2: What is the preferred method for securing components before soldering?

Which action should you take?

Choose only one option

Epoxy application

Taping leads

Bending leads

Clipping leads

Question 3: Which material is typically used as the substrate in a multilayer PCB?

Which action should you take?

Choose only one option

FR-4

Polyimide

PTFE

CEM-3

Question 4: Which flux type is generally used for SMT soldering?

Which action should you take?

Choose only one option

No-clean flux

Water-soluble flux

Rosin-based flux

Acid-based flux

Question 5: During PCB assembly, which process step is most likely to introduce component misalignment?

Which action should you take?

Choose only one option

Component placement using pick-and-place machines

Applying the solder paste before placement

Inspection of solder joints

Cleaning the PCB after soldering

Question 6: In an automated PCB assembly line, what is the effect of incorrect calibration of pick-and-place machines on the overall process?

Which action should you take?

Choose only one option

It reduces the speed of the soldering process

It leads to a reduction in the required temperature profile

It can cause misalignment of components and placement errors

It causes components to be over-soldered or under-soldered