Preview Questions Electrician | Role Specific Skill

Question 1: When designing a dedicated circuit for an electric oven in a residential setting, how do you determine the correct breaker size?

Which action should you take?

Choose only one option

By sizing the breaker based on the maximum load current without adjustment

By using the standard 15-amp circuit size

By considering the oven's rated wattage and applying the NEC's demand factors

By using the smallest breaker available for safety

Question 2: How should an Electrician calculate and consider the total load when designing a circuit for a commercial building with various equipment?

Which action should you take?

Choose only one option

Use a flat load estimate for all circuits

Perform detailed load calculations for each piece of equipment and system, ensuring that the sum of the loads does not exceed the circuit's capacity and the building's electrical service

Estimate the load without considering each individual equipment type

Ignore the load calculation process and proceed with standard design

Question 3: If an electrical panel has signs of overheating, what is the most likely cause that should be checked first?

Which action should you take?

Choose only one option

Damaged grounding conductor

Incorrect wiring insulation type

Faulty circuit breakers or overloading

Loose connections or over-tightened screws

Question 4: If an outlet is showing a reversed polarity, what is the correct way to fix it?

Which action should you take?

Choose only one option

Reverse the wiring connections at the outlet terminals

Use a GFCI outlet and reset it

Replace the outlet with a two-prong model

Increase the breaker size to compensate

Question 5: 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 6: What factors influence the selection of a circuit breaker for a particular circuit?

Which action should you take?

Choose only one option

The availability of the breaker in the market

The size of the electrical panel and the physical appearance of the breaker

The expected current load, voltage, and fault protection needs

The brand of the breaker and personal preferences