COSC 325 Final Exam with all Correct & 100% Verified
Answers |Actual Complete Exam |Already Graded A+
Conductor ✔Correct Answer-material that has very little resistance and permits electrons to
move through it easily
Insulator ✔Correct Answer-any material that has a very high resistance and resists the flow of
electrons
Generated electricity ✔Correct Answer-the alternating current (AC) created by power plant
generator
Three phase ✔Correct Answer-three distinct wave cycles, 3-wires, 415V
Single phase ✔Correct Answer-power supply has one distinct wave cycle, single wire, 230V
Service panel ✔Correct Answer-is an electrical device containing fuses or circuit breakers for
protecting the individual circuits of a residence and serves as a means of disconnecting the
entire residence from the distribution system
Circuit ✔Correct Answer-a complete path (when on) for current to take and includes electrical
control devices, circuit protection, conductors, and load(s)
System ground ✔Correct Answer-is a special circuit designed to protect the entire distribution
system of a residence
Equipment ground ✔Correct Answer-is a circuit designed to protect individual components
connected to an electrical system
2 methods for grounding an electrical system ✔Correct Answer-metal water pipe and
alternative electrode
Electrode ✔Correct Answer-is a long metal rod used to make contact with the earth for
grounding purposes
Fuse ✔Correct Answer-an electric overcurrent protection device used to limit the rate of
current flow in a circuit
Circuit breaker ✔Correct Answer-is an overcurrent protection device with a mechanical
mechanism that may manually or automatically open a circuit when an overload condition or
short circuit occur
,Ground Fault Circuit Interrupter (GFCI) ✔Correct Answer-a fast-acting receptacle that detects
low levels of leakage current to ground and opens the circuit in response to the leakage
LOTO ✔Correct Answer-Lockout/Tagout
National Electrical Code (NEC) ✔Correct Answer-is a book of electrical standards that indicate
how electrical systems must be installed and how work must be performed. Standards for
residential, commercial, and industrial electrical work
National Fire Protection Association: NFPA 70E ✔Correct Answer-standard for electrical safety
in a workplace, addresses electrical safety requirements for employee workplaces that are
necessary for safeguarding employees in pursuit of gainful employment
Potential energy ✔Correct Answer-is stored energy a body has due to its position, chemical
state, or condition
Kinetic energy ✔Correct Answer-energy of motion (released potential energy)
Voltage (AC only) ✔Correct Answer-is the amount of electrical pressure in a circuit. Produced
any time there is an excess of electrons at one terminal and deficiency in an other, the greater
the difference = higher voltage
DC voltage ✔Correct Answer-voltage that flows in 1 direction only (portable equipment)
AC voltage ✔Correct Answer-voltage that reverses its direction of flow at regular intervals
(res,com,indust lighting and power distribution systems)
Rectifier ✔Correct Answer-a device that converts AC to DC by allowing the voltage and
current to move in only one direction
Single ✔Correct Answer-(AC) contains only one alternating voltage waveform
Three ✔Correct Answer-(AC) a combination of three alternating voltage waveforms, each
displace 120 electrical degrees apart
Current ✔Correct Answer-the amount of electrons flowing through an electrical circuit
(amperes)
Ampere/amp ✔Correct Answer-the number of electrons passing a given point in 1 second
Conventional current flow ✔Correct Answer-current flow from + to -
Electron current flow ✔Correct Answer-flow from - to +
, Power (P) ✔Correct Answer-the rate of doing work or using energy
True power (PT) ✔Correct Answer-the actual power used in electrical circuit (watts, W)
Apparent power (PA) ✔Correct Answer-the product of voltage and current in a circuit
calculated without considering the phase shift that may be present between the voltage and
current in the circuit (Volt amps, VA)
Resistive circuit ✔Correct Answer-a circuit that contains only resistive components, such as
heating elements and incandescent lamps
In ✔Correct Answer-phase - the state when voltage and current reach their mac amplitude
and zero level simultaneously
Inductance ✔Correct Answer-the property of a circuit that causes it to oppose a change in
current due to energy stored in a magnetic field
Capacitance ✔Correct Answer-is the ability of a component or circuit to store energy in the
form of an electrical charge
Power factor (PF) ✔Correct Answer-the ratio of true power used in an AC circuit to apparent
power delivered to the circuit (PF=PT/PA x 100)
Conductor materials ✔Correct Answer-material that has very little resistance and permits
electrons to move through it easily
Insulator materials ✔Correct Answer-is a material that has a very high resistance an resists
the flow of electrons (rubber, plastic, air, glass, and paper)
Converting celsius to fahrenheit ✔Correct Answer-F=(1.8xC)+32
Electrical energy calculations (kWh) ✔Correct Answer-E=PxT
Power formula ✔Correct Answer-is the relationship between Power, Voltage, and Current in
an electrical circuit P=ExI
Electrical circuit ✔Correct Answer-an assembly of conductors (wires), electrical devices
(switches and receptacles), and components (lights and motors) through which current flows
Manually controlled circuit ✔Correct Answer-is any circuit that requires a person ti initiate an
action for the circuit to operate
Component plan ✔Correct Answer-a group of schedules that state the required locations for
receptacles, lights, and switches according to the NEC and local codes
Answers |Actual Complete Exam |Already Graded A+
Conductor ✔Correct Answer-material that has very little resistance and permits electrons to
move through it easily
Insulator ✔Correct Answer-any material that has a very high resistance and resists the flow of
electrons
Generated electricity ✔Correct Answer-the alternating current (AC) created by power plant
generator
Three phase ✔Correct Answer-three distinct wave cycles, 3-wires, 415V
Single phase ✔Correct Answer-power supply has one distinct wave cycle, single wire, 230V
Service panel ✔Correct Answer-is an electrical device containing fuses or circuit breakers for
protecting the individual circuits of a residence and serves as a means of disconnecting the
entire residence from the distribution system
Circuit ✔Correct Answer-a complete path (when on) for current to take and includes electrical
control devices, circuit protection, conductors, and load(s)
System ground ✔Correct Answer-is a special circuit designed to protect the entire distribution
system of a residence
Equipment ground ✔Correct Answer-is a circuit designed to protect individual components
connected to an electrical system
2 methods for grounding an electrical system ✔Correct Answer-metal water pipe and
alternative electrode
Electrode ✔Correct Answer-is a long metal rod used to make contact with the earth for
grounding purposes
Fuse ✔Correct Answer-an electric overcurrent protection device used to limit the rate of
current flow in a circuit
Circuit breaker ✔Correct Answer-is an overcurrent protection device with a mechanical
mechanism that may manually or automatically open a circuit when an overload condition or
short circuit occur
,Ground Fault Circuit Interrupter (GFCI) ✔Correct Answer-a fast-acting receptacle that detects
low levels of leakage current to ground and opens the circuit in response to the leakage
LOTO ✔Correct Answer-Lockout/Tagout
National Electrical Code (NEC) ✔Correct Answer-is a book of electrical standards that indicate
how electrical systems must be installed and how work must be performed. Standards for
residential, commercial, and industrial electrical work
National Fire Protection Association: NFPA 70E ✔Correct Answer-standard for electrical safety
in a workplace, addresses electrical safety requirements for employee workplaces that are
necessary for safeguarding employees in pursuit of gainful employment
Potential energy ✔Correct Answer-is stored energy a body has due to its position, chemical
state, or condition
Kinetic energy ✔Correct Answer-energy of motion (released potential energy)
Voltage (AC only) ✔Correct Answer-is the amount of electrical pressure in a circuit. Produced
any time there is an excess of electrons at one terminal and deficiency in an other, the greater
the difference = higher voltage
DC voltage ✔Correct Answer-voltage that flows in 1 direction only (portable equipment)
AC voltage ✔Correct Answer-voltage that reverses its direction of flow at regular intervals
(res,com,indust lighting and power distribution systems)
Rectifier ✔Correct Answer-a device that converts AC to DC by allowing the voltage and
current to move in only one direction
Single ✔Correct Answer-(AC) contains only one alternating voltage waveform
Three ✔Correct Answer-(AC) a combination of three alternating voltage waveforms, each
displace 120 electrical degrees apart
Current ✔Correct Answer-the amount of electrons flowing through an electrical circuit
(amperes)
Ampere/amp ✔Correct Answer-the number of electrons passing a given point in 1 second
Conventional current flow ✔Correct Answer-current flow from + to -
Electron current flow ✔Correct Answer-flow from - to +
, Power (P) ✔Correct Answer-the rate of doing work or using energy
True power (PT) ✔Correct Answer-the actual power used in electrical circuit (watts, W)
Apparent power (PA) ✔Correct Answer-the product of voltage and current in a circuit
calculated without considering the phase shift that may be present between the voltage and
current in the circuit (Volt amps, VA)
Resistive circuit ✔Correct Answer-a circuit that contains only resistive components, such as
heating elements and incandescent lamps
In ✔Correct Answer-phase - the state when voltage and current reach their mac amplitude
and zero level simultaneously
Inductance ✔Correct Answer-the property of a circuit that causes it to oppose a change in
current due to energy stored in a magnetic field
Capacitance ✔Correct Answer-is the ability of a component or circuit to store energy in the
form of an electrical charge
Power factor (PF) ✔Correct Answer-the ratio of true power used in an AC circuit to apparent
power delivered to the circuit (PF=PT/PA x 100)
Conductor materials ✔Correct Answer-material that has very little resistance and permits
electrons to move through it easily
Insulator materials ✔Correct Answer-is a material that has a very high resistance an resists
the flow of electrons (rubber, plastic, air, glass, and paper)
Converting celsius to fahrenheit ✔Correct Answer-F=(1.8xC)+32
Electrical energy calculations (kWh) ✔Correct Answer-E=PxT
Power formula ✔Correct Answer-is the relationship between Power, Voltage, and Current in
an electrical circuit P=ExI
Electrical circuit ✔Correct Answer-an assembly of conductors (wires), electrical devices
(switches and receptacles), and components (lights and motors) through which current flows
Manually controlled circuit ✔Correct Answer-is any circuit that requires a person ti initiate an
action for the circuit to operate
Component plan ✔Correct Answer-a group of schedules that state the required locations for
receptacles, lights, and switches according to the NEC and local codes
