Preview Questions Electrical Technician | Role Specific Skill

Question 1: What is the key maintenance check for ensuring the long-term performance of a backup power supply system?

Which action should you take?

Choose only one option

Test the inverter for proper operation and monitor for any fault codes

Check the cooling system for any clogs or leaks that might cause overheating

Ensure the fuel system is functioning properly and the generator is operating without issues

Check the battery charge level and the condition of the battery terminals

Question 2: In a lighting circuit, flickering lights are most likely caused by:

Which action should you take?

Choose only one option

Worn-out light fixtures

Loose wire connections

Voltage instability

All of the above

Question 3: During the installation of an electrical conduit, what is the best practice to minimize electromagnetic interference (EMI)?

Which action should you take?

Choose only one option

Avoid using metallic conduit

Use of shielded conduit

Proper grounding of the conduit

Installation of ferrite cores in the conduit

Question 4: Which of the following is crucial to ensure proper installation of a power factor correction capacitor bank?

Which action should you take?

Choose only one option

Proper sizing of the capacitor bank

Correct selection of bypass contactor

Accurate calibration of the current transformer

Correct connection of the neutral line

Question 5: How do you identify harmonic distortion in an electrical distribution system?

Which action should you take?

Choose only one option

Inspect load distribution

Analyze voltage waveform

Measure using a harmonic analyzer

Use an oscilloscope

Question 6: During maintenance of an electrical panel, what is the best method to check for faulty connections?

Which action should you take?

Choose only one option

Tighten all terminal screws and check the connections visually

Use a thermal imager to identify overheating connections

Perform a continuity test with a multimeter to identify open circuits

Use an ultrasonic tester to detect faulty connections