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MEP SYSTEMS I (COSC 325) ELECTRICAL EXAM – HOUSTON NEWEST ACTUAL EXAM COMPLETE 150 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ $28.49
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MEP SYSTEMS I (COSC 325) ELECTRICAL EXAM – HOUSTON NEWEST ACTUAL EXAM COMPLETE 150 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

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MEP SYSTEMS I (COSC 325) ELECTRICAL EXAM – HOUSTON NEWEST ACTUAL EXAM COMPLETE 150 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

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  • October 23, 2024
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  • 2024/2025
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  • MEP SYSTEMS I ELECTRICAL
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MEP SYSTEMS I (COSC 325) ELECTRICAL
EXAM – HOUSTON NEWEST 2024-2025
ACTUAL EXAM COMPLETE 150
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+



When using a ____ _____ fuse, the melting of the conductor
strip is almost instantaneous. (20-438) - CORRECT ANSWER-
Standard Plug


A ____ ________ fuse can be reset after an overload and reused.
(20-440) - CORRECT ANSWER-Circuit Breaker


What is an overcurrent protection device with a mechanical
mechanism that may automatically or manually open a circuit
when an overload condition or short circuit occurs?
Unlike most fuses, they can be reset. (20-440) - CORRECT
ANSWER-Circuit Breaker


What is the most popular overcurrent device? (20-440) -
CORRECT ANSWER-Circuit Breaker

,2|Page




What are the three types of circuit breakers? (20-440) -
CORRECT ANSWER-Thermal
Magnetic
Thermal-Magnetic


What type of circuit breaker has the fastest response time to
serious overloads? (20-441) - CORRECT ANSWER-Thermal-
Magnetic


What is the typical rating for residential circuit breakers? (20-
441) - CORRECT ANSWER-115 V for single pole
230 V for double pole


What is a fast-acting receptacle that detects low levels of leaking
current to ground and opens the circuit in response to the
leakage? (20-441) - CORRECT ANSWER-Ground Fault Circuit
Interrupter (GFCI)


True or False? GFCIs protect against line-to-line contact. (20-
441) - CORRECT ANSWER-False


What is the smallest current leakage a GFCI can detect? (20-
441) - CORRECT ANSWER-.005 A

, 3|Page




The GFCI can be tested on a ______ basis without a ground
fault condition. (20-442) - CORRECT ANSWER-Monthly


The National Electric Code (NEC) requires GFCIs for protection
in what areas? (20-442) - CORRECT ANSWER-- Residential
- Outdoor Receptacles
- Bathrooms
- Residential Garages
- Unfinished Basements & Crawlspaces
- Kitchens
- Construction Sites
- Mobile Homes
- Swimming Pools & Fountains
- Lightning Fixtures and Lightning Outlets near Pools


True or False? All power tools are grounded except power tools
that are approved double-insulated. (20-443) - CORRECT
ANSWER-True


Non-double insulated power tools must have a ____-conductor
cord. (20-443) - CORRECT ANSWER-Three

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