Preview Questions After-Sales Support Technician | Role Specific Skill

Question 1: Which parameter is crucial to check when troubleshooting high-frequency noise in a power supply?

Which action should you take?

Choose only one option

The value of capacitors in the circuit

The input voltage waveform from the AC source

The type of switching transistors used in the supply

The quality of the ground connection and shielding

Question 2: When replacing a blown fuse in an electronic circuit, what is the most important consideration?

Which action should you take?

Choose only one option

The voltage rating of the fuse should match the circuit's requirements

The current rating of the fuse should match the circuit's load

The material composition of the fuse

The time-delay characteristics of the fuse

Question 3: In an LCD display, what technology is responsible for generating the light needed for the screen to function?

Which action should you take?

Choose only one option

Plasma discharge

LED backlighting

Fluorescent tube technology

OLED technology

Question 4: How does thermal runaway occur in power transistors?

Which action should you take?

Choose only one option

Due to incorrect biasing in the transistor

Due to high-frequency switching in the circuit

Due to electrical interference from nearby devices

Due to excessive load and improper heat dissipation

Question 5: When performing regular maintenance of an electric motor, which component is most prone to wear and requires inspection?

Which action should you take?

Choose only one option

Bearings

Shaft

Housing

Stator windings

Question 6: During a repair job, how should an after-sales support technician handle a corroded connector in an electrical circuit?

Which action should you take?

Choose only one option

Replace the connector

Apply contact lubricant

Clean it with isopropyl alcohol

Sand the corroded surface