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COSC 325 – ELECTRICAL EXAM 2026
WITH QUESTIONS AND CORRECT
ANSWERS
Lock Out Tag Out (LOTO) - correct answer-1. Protects you from Electricity
2. Isolated - isolates you from the power souse to keep it out/off and you
safe
10 seconds - correct answer-A generator MUST kick up within ______
277 - correct answer-____ is NEVER line-to-line voltage
romex - correct answer-is most common in residential
kVA - correct answer-Transformers are measured in what units?
RMC, EMT, PVC - correct answer-Which conduits have NO wire?
MC Cable - correct answer-Which conduits have wire?
Conductor - correct answer-____ is a material that allows electrons to
easily move from atom to atom. Ex. silver, copper, gold, aluminum, iron
Insulator - correct answer-_____ is a material that does not allow electrons
to easily move from atom to atom. Ex. Glass, rubber, plastic, or paper
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Phases - correct answer-_____ Refers to the number of "hot" wires in a
system
Transformers - correct answer-_____ uses electromagnetism to step-up or
step-down AC voltage from one level to another
Grounding - correct answer-protects the occupants by providing a safe
pathway for unwanted electricity that might create a hazard
System Ground - correct answer-_______ protects the entire distribution
system of a residence
Equipment Ground - correct answer-____ protects individual components
connected to an electrical system
GCFI (ground fault circuit interrupters) - correct answer-_____ detects low
level of leakage current to ground and open the circuit in response
GCFI (ground fault circuit interrupters) - correct answer-Located in
bathrooms, kitchens, near pools, fountains, and garages. designed to
detects leakages of current
Transformer - correct answer-What electrical equipment is this?
Weather Head - correct answer-What electrical equipment is this?
Disconnect - correct answer-The purpose of a _______ is to shut off power
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AC (Alternating Current) - correct answer-Type of current used in buildings
PVC Conduit - correct answer-What does this picture show?
PVC Conduit - correct answer-______ is used primarily underground
because it holds up to corrosion and decay better
RC - correct answer-Once PVC conduit is above ground it transitions into
_____
RMC (Rigid Metal Conduit) - correct answer-What type of conduit is this?
RMC (Rigid Metallic Conduit) - correct answer-What type of conduit is this?
EMT (Electrical Metallic Tubing) - correct answer-What type of conduit is
this?
EMT (Electrical Metallic Tubing) - correct answer-_______ is used into of
the building, has the thinnest walls, and uses set screw or compression
fittings
RMC (Rigid Metallic Conduit) - correct answer-_______ Has the thickest
wall, used outside of the building, and has threaded connections
Set Screw Fitting - correct answer-What type of fitting is this?
COSC 325 – ELECTRICAL EXAM 2026
WITH QUESTIONS AND CORRECT
ANSWERS
Lock Out Tag Out (LOTO) - correct answer-1. Protects you from Electricity
2. Isolated - isolates you from the power souse to keep it out/off and you
safe
10 seconds - correct answer-A generator MUST kick up within ______
277 - correct answer-____ is NEVER line-to-line voltage
romex - correct answer-is most common in residential
kVA - correct answer-Transformers are measured in what units?
RMC, EMT, PVC - correct answer-Which conduits have NO wire?
MC Cable - correct answer-Which conduits have wire?
Conductor - correct answer-____ is a material that allows electrons to
easily move from atom to atom. Ex. silver, copper, gold, aluminum, iron
Insulator - correct answer-_____ is a material that does not allow electrons
to easily move from atom to atom. Ex. Glass, rubber, plastic, or paper
,2 |Page
Phases - correct answer-_____ Refers to the number of "hot" wires in a
system
Transformers - correct answer-_____ uses electromagnetism to step-up or
step-down AC voltage from one level to another
Grounding - correct answer-protects the occupants by providing a safe
pathway for unwanted electricity that might create a hazard
System Ground - correct answer-_______ protects the entire distribution
system of a residence
Equipment Ground - correct answer-____ protects individual components
connected to an electrical system
GCFI (ground fault circuit interrupters) - correct answer-_____ detects low
level of leakage current to ground and open the circuit in response
GCFI (ground fault circuit interrupters) - correct answer-Located in
bathrooms, kitchens, near pools, fountains, and garages. designed to
detects leakages of current
Transformer - correct answer-What electrical equipment is this?
Weather Head - correct answer-What electrical equipment is this?
Disconnect - correct answer-The purpose of a _______ is to shut off power
, 3 |Page
AC (Alternating Current) - correct answer-Type of current used in buildings
PVC Conduit - correct answer-What does this picture show?
PVC Conduit - correct answer-______ is used primarily underground
because it holds up to corrosion and decay better
RC - correct answer-Once PVC conduit is above ground it transitions into
_____
RMC (Rigid Metal Conduit) - correct answer-What type of conduit is this?
RMC (Rigid Metallic Conduit) - correct answer-What type of conduit is this?
EMT (Electrical Metallic Tubing) - correct answer-What type of conduit is
this?
EMT (Electrical Metallic Tubing) - correct answer-_______ is used into of
the building, has the thinnest walls, and uses set screw or compression
fittings
RMC (Rigid Metallic Conduit) - correct answer-_______ Has the thickest
wall, used outside of the building, and has threaded connections
Set Screw Fitting - correct answer-What type of fitting is this?
