STUDENTS SUCCESS
Revision Examination Tests
“Come all for this Greatness”
... 100% Correct Ans ...
COSC 325 MEP - EXAM 3 ELECTRICAL 2024-2025 ACTUAL EXAM COMPLETE
200-QUESTIONS AND CORRECT DETAILED ANSWERS
Quiz What is Volts, Amps, and Power?
Ans: (Volts) - like water pressure (120V is what our devices use)
(Amps) - like water flow (Amps = your wire size)
Power (Watts) - Volts x Amps
Quiz Disconnect Switches
Ans: Turns power off and on, like a light switch
Quiz Direct Current (DC)
Ans: Batteries, phones
Quiz Conduit
Ans: are pathways for electrical power (usually colored grey to signal electrical)
Quiz Tugger
Ans: Essentially a winch to pull cable through conduit
Quiz PVC conduit
Ans: Relatively cheap cost (will be colored grey to signal electrical)
Quiz EMT conduit (Electrical metallic tubing)
Ans: - Galvanized (some resistance to corrosion but NOT UG)
- More expensive than PVC of material & labor intensity
- Thinnest wall type
- Compression fitting AND coupling
Quiz IMC/RMC Conduit (Intermediate/Rigid metal conduit)
, Ans: - IMC has a bit thinner wall pipe than RMC
- IMC would be used near typical damage spots
-RMC has the thickest wall pipe of all
- RMC used near moisture
- Galvanized (would need wrapping for UG use though)
- HIGHEST cost and high labor intensity
- Threading fitting
Quiz Conduit body - LB (B stands for back)
Ans: - Really common
- Gives you 90 degree turn to go into a building
- Gives you a pull point to go into a building
- Good for changing directions
Quiz Junction boxes
Ans: - Pull point
- Wire connection protection
- Change in direction
- 360 degree rule (no more than 4 quarter bends b/w pull points)
Quiz Pull boxes
Ans: - Same exact purpose as junction boxes, just typically an outside J-box
Quiz Gutter
Ans: Wireway or trough (when it's a long Junction box)
Quiz In-line metering
Ans: When the meter and disconnect are essentially stacked on top of each other
Quiz Switch boards
Ans: Essentially just a larger panel breaker
Quiz Panels/Panelboards
Ans: The cover is the "dead front", when removed it exposes the wires behind the
breakers
Quiz MCB vs MLO (Main circuit breaker vs Main lug only)
Ans: - MCB costs more than MLO
- If the power gets cut at the MCB, it kills the entire panelboard breakers
- MLO has no main circuit breaker
Quiz Hot wires
Revision Examination Tests
“Come all for this Greatness”
... 100% Correct Ans ...
COSC 325 MEP - EXAM 3 ELECTRICAL 2024-2025 ACTUAL EXAM COMPLETE
200-QUESTIONS AND CORRECT DETAILED ANSWERS
Quiz What is Volts, Amps, and Power?
Ans: (Volts) - like water pressure (120V is what our devices use)
(Amps) - like water flow (Amps = your wire size)
Power (Watts) - Volts x Amps
Quiz Disconnect Switches
Ans: Turns power off and on, like a light switch
Quiz Direct Current (DC)
Ans: Batteries, phones
Quiz Conduit
Ans: are pathways for electrical power (usually colored grey to signal electrical)
Quiz Tugger
Ans: Essentially a winch to pull cable through conduit
Quiz PVC conduit
Ans: Relatively cheap cost (will be colored grey to signal electrical)
Quiz EMT conduit (Electrical metallic tubing)
Ans: - Galvanized (some resistance to corrosion but NOT UG)
- More expensive than PVC of material & labor intensity
- Thinnest wall type
- Compression fitting AND coupling
Quiz IMC/RMC Conduit (Intermediate/Rigid metal conduit)
, Ans: - IMC has a bit thinner wall pipe than RMC
- IMC would be used near typical damage spots
-RMC has the thickest wall pipe of all
- RMC used near moisture
- Galvanized (would need wrapping for UG use though)
- HIGHEST cost and high labor intensity
- Threading fitting
Quiz Conduit body - LB (B stands for back)
Ans: - Really common
- Gives you 90 degree turn to go into a building
- Gives you a pull point to go into a building
- Good for changing directions
Quiz Junction boxes
Ans: - Pull point
- Wire connection protection
- Change in direction
- 360 degree rule (no more than 4 quarter bends b/w pull points)
Quiz Pull boxes
Ans: - Same exact purpose as junction boxes, just typically an outside J-box
Quiz Gutter
Ans: Wireway or trough (when it's a long Junction box)
Quiz In-line metering
Ans: When the meter and disconnect are essentially stacked on top of each other
Quiz Switch boards
Ans: Essentially just a larger panel breaker
Quiz Panels/Panelboards
Ans: The cover is the "dead front", when removed it exposes the wires behind the
breakers
Quiz MCB vs MLO (Main circuit breaker vs Main lug only)
Ans: - MCB costs more than MLO
- If the power gets cut at the MCB, it kills the entire panelboard breakers
- MLO has no main circuit breaker
Quiz Hot wires
