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COSC 325 - Final Questions with Detailed Verified
Answers
Conductor Ans: ✓ ✓ ✓ material that has very little resistance and permits electrons to move
through it easily
Insulator Ans: ✓ ✓ ✓ any material that has a very high resistance and resists the flow of electrons
Generated electricity Ans: ✓ ✓ ✓ the alternating current (AC) created by power plant generator
Three phase Ans: ✓ ✓ ✓ three distinct wave cycles, 3-wires, 415V
Single phase Ans: ✓ ✓ ✓ power supply has one distinct wave cycle, single wire, 230V
Service panel Ans: ✓ ✓ ✓ 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 Ans: ✓ ✓ ✓ a complete path (when on) for current to take and includes electrical control
devices, circuit protection, conductors, and load(s)
System ground Ans: ✓ ✓ ✓ is a special circuit designed to protect the entire distribution system of
a residence
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Equipment ground Ans: ✓ ✓ ✓ is a circuit designed to protect individual components connected to
an electrical system
2 methods for grounding an electrical system Ans: ✓ ✓ ✓ metal water pipe and alternative
electrode
Electrode Ans: ✓ ✓ ✓ is a long metal rod used to make contact with the earth for grounding
purposes
Fuse Ans: ✓ ✓ ✓ an electric overcurrent protection device used to limit the rate of current flow in
a circuit
Circuit breaker Ans: ✓ ✓ ✓ 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) Ans: ✓ ✓ ✓ a fast-acting receptacle that detects low levels
of leakage current to ground and opens the circuit in response to the leakage
LOTO Ans: ✓ ✓ ✓ Lockout/Tagout
National Electrical Code (NEC) Ans: ✓ ✓ ✓ 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 Ans: ✓ ✓ ✓ 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 Ans: ✓ ✓ ✓ is stored energy a body has due to its position, chemical state, or
condition
© Get it right 2025 Getaway - Stuvia US All rights reserved
COSC 325 - Final Questions with Detailed Verified
Answers
Conductor Ans: ✓ ✓ ✓ material that has very little resistance and permits electrons to move
through it easily
Insulator Ans: ✓ ✓ ✓ any material that has a very high resistance and resists the flow of electrons
Generated electricity Ans: ✓ ✓ ✓ the alternating current (AC) created by power plant generator
Three phase Ans: ✓ ✓ ✓ three distinct wave cycles, 3-wires, 415V
Single phase Ans: ✓ ✓ ✓ power supply has one distinct wave cycle, single wire, 230V
Service panel Ans: ✓ ✓ ✓ 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 Ans: ✓ ✓ ✓ a complete path (when on) for current to take and includes electrical control
devices, circuit protection, conductors, and load(s)
System ground Ans: ✓ ✓ ✓ is a special circuit designed to protect the entire distribution system of
a residence
© Get it right 2025 Getaway - Stuvia US All rights reserved
, Click here for more: Scholars nexus
Equipment ground Ans: ✓ ✓ ✓ is a circuit designed to protect individual components connected to
an electrical system
2 methods for grounding an electrical system Ans: ✓ ✓ ✓ metal water pipe and alternative
electrode
Electrode Ans: ✓ ✓ ✓ is a long metal rod used to make contact with the earth for grounding
purposes
Fuse Ans: ✓ ✓ ✓ an electric overcurrent protection device used to limit the rate of current flow in
a circuit
Circuit breaker Ans: ✓ ✓ ✓ 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) Ans: ✓ ✓ ✓ a fast-acting receptacle that detects low levels
of leakage current to ground and opens the circuit in response to the leakage
LOTO Ans: ✓ ✓ ✓ Lockout/Tagout
National Electrical Code (NEC) Ans: ✓ ✓ ✓ 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 Ans: ✓ ✓ ✓ 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 Ans: ✓ ✓ ✓ is stored energy a body has due to its position, chemical state, or
condition
© Get it right 2025 Getaway - Stuvia US All rights reserved
