Preview Questions Field Support Engineer | Role Specific Skill

Question 1: A client's automated burn-in chamber shows temperature oscillations despite stable heater inputs. To determine if the temperature sensor is faulty or the PID controller is misconfigured, which on-site test is most effective?

Which action should you take?

Choose only one option

Only recalibrate the PID controller

Use an independent calibrated temperature probe to cross-verify sensor readings and analyze PID controller response to step changes in temperature with a data logger

Adjust PID settings randomly

Replace temperature sensors without verification

Question 2: If you encounter a device with a damaged PCB trace, what is the best solution?

Which action should you take?

Choose only one option

Clean the surface and check for any other damage

Replace the entire PCB

Solder a jumper wire to bypass the damaged trace

Reflow the solder joints

Question 3: In a circuit with multiple ICs, if a malfunction occurs, which diagnostic method would you use to pinpoint the faulty IC?

Which action should you take?

Choose only one option

Check the power supply for stability

Test each IC individually using a multimeter

Use an oscilloscope to view the waveform at each IC

Use a logic analyzer to observe the signals

Question 4: How should a short circuit in a PCB be located?

Which action should you take?

Choose only one option

Measure voltage drops with a multimeter

Perform a full system reset

Use a thermal camera

Disconnect all components

Question 5: How would you troubleshoot a scenario where a device works intermittently but fails after prolonged use?

Which action should you take?

Choose only one option

Replace the internal components and test again

Use a waveform generator to simulate operation

Perform a visual inspection of the external components

Check the voltage regulation and check for overheating

Question 6: During an on-site visit, a high-speed pick-and-place machine shows random component misplacements. Which direct measurement confirms if line voltage fluctuations at the client's facility are causing servo position errors?

Which action should you take?

Choose only one option

Check only machine logs offline

Rely on the client's claims of stable power

Use a high-frequency power quality analyzer at the machine's main input to record sags, harmonics, and transient events correlating with misplacements

Ask the client to call their electrician