Preview Questions Electrician | Role Specific Skill

Question 1: In a lighting circuit design, what is the minimum number of conductors required for a single-pole switch controlling a lighting load?

Which action should you take?

Choose only one option

Four conductors (two hots, neutral, and ground)

One conductor (neutral only)

Three conductors (hot, neutral, and ground)

Two conductors (hot and neutral)

Question 2: How would you troubleshoot an electrical panel with multiple tripped breakers?

Which action should you take?

Choose only one option

Increase the ampacity of the panel to prevent tripping

Replace all breakers with new ones

Test the breakers individually for defects

Examine the grounding and verify that no overloads are present

Question 3: In residential electrical wiring, how should multi-way switches be wired to ensure correct operation for controlling a single light from multiple locations?

Which action should you take?

Choose only one option

By eliminating the neutral wire and using only hot wires

By connecting the switches in series and using a neutral wire only

By connecting the traveler wires between the switches and ensuring the common terminals are correctly linked

By wiring the switches in parallel with no common wire

Question 4: What is the maximum conduit fill percentage for a single circuit in a non-metallic sheathed cable (NM) according to the NEC?

Which action should you take?

Choose only one option

50%

70%

60%

40%

Question 5: When installing an outlet in a garage, according to NEC 210.52, which of the following requirements must be met?

Which action should you take?

Choose only one option

GFCI protection must be provided

No special requirements

Outlet must be weather-resistant

Outlet must be placed within 10 feet of a window

Question 6: How do you ensure proper protection against overcurrent in an electrical circuit design?

Which action should you take?

Choose only one option

By using fuses only and ignoring circuit breakers

By assuming that the electrical panel is always large enough to handle any load

By selecting a circuit breaker that matches the wire size and load requirements of the circuit

By choosing a circuit breaker with the smallest rating possible