Some examples from this set of practice questions
1.
It is an industrial facility that houses the prime mover, electric generator and auxiliaries for conversion of mechanical energy, chemical energy and/or nuclear energy into electrical energy. It is a facility or system for the generation of electric power.
Answer: Power Station
2.
Conductors that carry power from the transformer through a metering device to the building’s service disconnects. These may be overhead or underground.
Answer: Service Entrance Conductors
3.
Overhead wires extend from a pole-mounted distribution transformer to the building’s service entrance. Overhead service entrance conductors extending from pole mounted transformer
Answer: Service drop
4.
Underground (buried) service entrance conductors.
Answer: Service Lateral
5.
It includes the components that connect the utility-supplied wiring (the service lateral or service drop) to the service disconnect, excluding the utility’s metering equipment.
Answer: Service Entrance
6.
Receives the service entrance conductors. The service equipment includes a method of measuring power (metering equipment), a method of cutting off power (main disconnect or switch gear), and overcurrent protection devices (circuit breakers or fuses) that protect the service entrance conductors.
Answer: Service Entrance Equipment
7.
It is a required part of the service entrance equipment that allows electrical service from the utility company to be switched off so that power is disconnected to the building installation. It is a set of fuses or a circuit breaker that protects the service entrance conductors.
Answer: Service Disconnect
8.
it is a large cabinet or assembly of metal cabinets in which is connected disconnecting switches, overcorrect protection devices (fuses or circuit breakers), other protective devices, and instruments designed to divide large amounts of electrical current into smaller amounts of current used by electrical equipment.
Answer: Switchboard
9.
it is one or more metal cabinets that serve as a single unit, including buses, automatic overcurrent protection devices (fuses or circuit breakers). It is equipped with or without switches for the control of light, heat, and power circuits.
Answer: Panelboard
10.
are used in transmitting and distributing power from the power plant to a substation. The operation of a large commercial installation depends on power distribution that, in turn, depends on transformers used to change voltage, current, and phase of electrical power nearby and within a building.
Answer: Transformers
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