Preview Questions Electrical Technician | Role Specific Skill

Question 1: 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

Question 2: How do you repair a damaged wire that is located inside a junction box and cannot be easily replaced?

Which action should you take?

Choose only one option

Use heat shrink tubing to cover the damaged section and insulate it

Cut the damaged section and use a wire connector to join the undamaged sections

Splice the wires using a wire nut and leave the junction exposed for easy inspection

Solder the two wire ends together and cover with electrical tape

Question 3: Which PPE is mandatory when working with high-voltage systems?

Which action should you take?

Choose only one option

Flame-resistant clothing

Face shields

Insulated gloves

All of the above

Question 4: When installing an RCD (Residual Current Device), what is the key factor to ensure correct operation?

Which action should you take?

Choose only one option

The RCD must be rated for the specific current rating of the load being protected

The device must be able to handle the maximum fault current as defined in standards

The RCD should be installed in close proximity to the power supply for rapid detection of faults

The device must be connected in the correct phase and neutral wiring sequence

Question 5: When troubleshooting a power supply that is failing to deliver the correct output voltage, what is the first step to check?

Which action should you take?

Choose only one option

Test the fuse integrity

Measure the input voltage

Check the power supply's efficiency

Inspect for overheating

Question 6: In terms of safety compliance, what does the "ground-fault circuit interrupter" (GFCI) protect against?

Which action should you take?

Choose only one option

It prevents electrical fires caused by short circuits

It prevents overloads by automatically disconnecting the circuit in case of high current

It protects against electric shock due to ground faults and unbalanced currents

It ensures the continuity of electrical supply in case of voltage fluctuations