Quiz on Service Feeders and Branch Circuits

What is the importance of learning about service feeders and branch circuits in electrical trade?

• To understand the factors affecting the sizing of a service and selection of conductors and devices.

• To learn how to install light fixtures.

• To design decorative electrical panels.

• To calculate the cost of electrical appliances.

What is one of the objectives of the module on service feeders and branch circuits?

• Determine the minimum ampacity of service or feeder conductors for a single dwelling.

• Learn how to paint electrical panels.

• Understand the history of electricity.

• Calculate the cost of electrical wiring.

According to the document, what is the average service ampacity at home?

• 100A

• 200A

• 300A

• 500A

What would happen if you turned on all the loads in your house at one time?

• The main circuit breaker would trip.

• The lights would become brighter.

• The electricity bill would decrease.

• The appliances would work faster.

Which organization produced the Trinidad and Tobago electrical wiring code part 1 for low voltage installations?

• Trinidad and Tobago Bureau of Standards (TTBS)

• National Electric Code (NEC)

• British Standards Institution

• Trinidad and Tobago Electricity Commission (T&TEC)

The low voltage codes in Trinidad and Tobago are aligned with which of the following?

• National Fire Protection Agency (NFPA 70)

• International Electrotechnical Commission (IEC)

• American National Standards Institute (ANSI)

• European Committee for Electrotechnical Standardization (CENELEC)

What does the term "Demand Factors" refer to in the context of building operations?

• The maximum possible current required

• The actual needs of a building based on statistics

• The total possible current a system can handle

• The full nameplate rating of a service

What is a "Single dwelling" as per NEC 2011?

• A building with multiple dwelling units

• A building that consists solely of one dwelling unit

• A structure with shared living facilities

• A building with temporary provisions for living

How is "Ampacity" defined according to NEC 2011?

• The total voltage a conductor can handle

• The maximum current a conductor can carry continuously

• The power demand of a service

• The total possible current required by a system

What is a "Dwelling Unit" as defined in the document?

• A temporary living facility

• A single unit with complete and independent living facilities

• A shared living space with multiple families

• A unit without provisions for cooking