Preview Questions After-Sales Support Technician | Role Specific Skill

Question 1: What is the primary purpose of a current-limiting resistor in an LED circuit?

Which action should you take?

Choose only one option

To decrease the current flow when the LED is off

To ensure a constant light output

To regulate the current passing through the LED

To prevent voltage fluctuations

Question 2: When troubleshooting slow charging in a power supply, what could be the main reason for the issue?

Which action should you take?

Choose only one option

Voltage drop across connections causing inadequate voltage levels

Overcharged capacitors causing reduced charging efficiency

The battery is too large for the circuit to charge effectively

A faulty charging circuit or insufficient charging current

Question 3: When replacing capacitors in a circuit, what is the main factor that could affect the longevity of the replacement capacitor?

Which action should you take?

Choose only one option

The physical size of the capacitor should fit the designated slot

The rated voltage must be higher than the circuit's operating voltage

The equivalent series resistance (ESR) must match the original specification

The material of the capacitor's housing should be compatible

Question 4: When diagnosing a malfunction in a circuit using a multimeter, which setting would you use to measure the resistance of a component?

Which action should you take?

Choose only one option

DC Voltage

AC Voltage

Ohms (?)

Amperes (A)

Question 5: A customer is experiencing a recurring fault with a product. How do you prioritize resolving the issue?

Which action should you take?

Choose only one option

Focus on finding a permanent solution to prevent future issues

Offer a replacement part and apologize for the inconvenience

Document the issue and suggest troubleshooting steps to the customer

Provide a temporary fix and offer a discount on future repairs

Question 6: How can a technician ensure that a customer fully understands the preventive maintenance steps they explain?

Which action should you take?

Choose only one option

Provide a written guide

Ask for verbal confirmation

Use visual aids

Demonstrate on the customer's device