COSC 325 – Electrical UPDATED ACTUAL
Exam 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
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
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?
Compression - CORRECT ANSWER - What type of fitting is this?
Line Box - CORRECT ANSWER - A ______ is a pull point that you can pull a wire
through and then open up a plate and push the wire through so you do not have to cut or twist the
wire
MCB (Main circuit breaker) - CORRECT ANSWER - What type of breaker is this?
Feeders - CORRECT ANSWER - _____ are the wires and conduits that lead up to the
panel
Branches - CORRECT ANSWER - _______ leads the power away from the panel
Exam 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
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
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?
Compression - CORRECT ANSWER - What type of fitting is this?
Line Box - CORRECT ANSWER - A ______ is a pull point that you can pull a wire
through and then open up a plate and push the wire through so you do not have to cut or twist the
wire
MCB (Main circuit breaker) - CORRECT ANSWER - What type of breaker is this?
Feeders - CORRECT ANSWER - _____ are the wires and conduits that lead up to the
panel
Branches - CORRECT ANSWER - _______ leads the power away from the panel
