Preview Questions Electrician | Role Specific Skill

Question 1: How do you ensure that your circuit design can accommodate future expansion in a commercial building?

Which action should you take?

Choose only one option

By designing the circuit to the maximum current capacity allowed

By ignoring potential future load increases

By using larger wire sizes and leaving extra room in the panel for additional breakers

By using minimal wire and equipment to reduce initial costs

Question 2: What is the most appropriate method for connecting a ground wire to a metal conduit?

Which action should you take?

Choose only one option

By using a grounding clamp that is properly sized for the conduit and the wire

By twisting the wire around the conduit

By placing the wire inside the conduit and relying on contact with the metal

By attaching the wire to the panel without any clamps

Question 3: In three-phase circuit design, what is the phase angle between the voltages of the three phases in a balanced load?

Which action should you take?

Choose only one option

120?

60?

90?

180?

Question 4: What is the most likely cause if you find no voltage at the switch in a light switch circuit?

Which action should you take?

Choose only one option

The light bulb is burnt out

The switch is defective or the wiring is disconnected

The wiring is too old and needs replacing

The breaker is too large for the circuit

Question 5: How would you troubleshoot an electrical panel where the main breaker keeps tripping?

Which action should you take?

Choose only one option

Add additional circuits to balance the load

Leave the breaker switched off to prevent further issues

Increase the size of the breaker

Check for short circuits or overloaded circuits in the system

Question 6: What is the function of a fuse in a circuit, and how does it protect the wiring system in the event of a short circuit?

Which action should you take?

Choose only one option

It provides continuous current flow to maintain operation

It ensures only one circuit is activated at a time

It increases the current capacity of the system

It interrupts the current flow to prevent overheating and fire hazards