EE 030 Art I-Trial

What is the purpose of a Ground-Fault Circuit Interrupter (GFCI)?

• To control the electric power delivered to the apparatus

• To establish an electrical connection to the earth

• To provide protection of personnel by de-energizing a circuit when current to ground exceeds a certain value

• To protect equipment from damaging line-to-ground fault currents

What is the definition of 'Continuous Load' in electrical engineering?

• Operation at loads and for intervals of time subject to wide variation

• Operation for alternate intervals of load and no load

• Operation at a substantially constant load for an indefinitely long time

• Operation at a substantially constant load for a short and definite time

What does 'Hermetically Sealed' mean in the context of Hazardous Locations?

• Equipment enclosed in a manner that excludes dusts

• Equipment enclosed in a case capable of withstanding an explosion

• Equipment sealed against the entrance of an external atmosphere

• Equipment enclosed in a case that prevents arcs, sparks, or heat from causing ignition

What is the purpose of an Intrinsically Safe System in Hazardous Locations?

• To ensure that all circuits are intrinsically safe

• To provide a means for connecting intersystem bonding conductors

• To provide protection of equipment from damaging line-to-ground fault currents

• To establish an electrical connection to the earth

What is the definition of 'Effective Power Production and Distribution Network'?

• A system comprised of multiple power sources

• A system intended for use in parallel with an electric utility

• Power production, distribution, and utilization equipment external to an interactive system

• A system that operates in parallel with an electric utility to supply common loads

What is the purpose of an Explosionproof Equipment in Hazardous Locations?

• To withstand an explosion of a specified gas or vapor

• To prevent the ignition of exterior accumulations of dust

• To provide protection of equipment from damaging line-to-ground fault currents

• To establish an electrical connection to the earth

What is the definition of 'Control Circuit' in electrical engineering?

• The circuit that carries the electric signals directing the performance of the controller

• The circuit conductors between the final overcurrent device and the outlet(s)

• The circuit of a control apparatus that carries the main power current

• The circuit that connects normally non-current-carrying metal parts of equipment

What is the purpose of a Charge Controller in electrical engineering?

• To charge a battery or other energy storage device

• To control the speed of an electric motor

• To adjust the speed of an electric motor

• To open and close a circuit by nonautomatic means

What is the definition of a Circuit Breaker?

• A device for measuring electricity in a circuit

• A device for storing electricity in a circuit

• A device for generating electricity in a circuit

• A device for controlling the flow of electricity in a circuit

When is an Electrical Permit needed before starting work?

• Before submitting the electrical plans and specifications

• Before starting any installation work on any electrical system

• After completing the installation work on any electrical system

• After obtaining approval from the Building Official