UTAH MASTER ELECTRICIAN EXAM – QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains:* National Electrical Code (NEC) Compliance and Calculations* Services,
Feeders, and Branch Circuits* Grounding and Bonding* Conductors and Overcurrent
Protection* Motors, Generators, and Transformers* Special Occupancies, Equipment, and
Conditions* Low-Voltage and Communication Systems* Utah State Laws, Rules, and
Administrative Code Compliance* Safety Standards, OSHA, and Professional Ethics
IntroductionThe Utah Master Electrician Exam is designed to evaluate the advanced skills,
critical knowledge, and technical competency required for licensure at a master level. This
comprehensive assessment verifies an applicant's ability to interpret, apply, and enforce the
National Electrical Code along with Utah state-specific regulations. The exam incorporates a
strategic mix of multiple-choice questions and complex, scenario-based problems that
replicate field challenges. Emphasizing real-world applications and professional decision-
making, it tests the candidate's understanding of electrical theory, safety mandates,
engineering principles, and ethical standards required to oversee large-scale electrical
installations safely and legally.
SECTION ONE
Question 1
What is the minimum size copper equipment grounding conductor required for a branch
circuit protected by a 40-ampere overcurrent device?
A. 12 AWG B. 10 AWG C. 8 AWG D. 6 AWG
B. 10 AWG
Explanation: According to NEC Table 250.122, the minimum size copper equipment
grounding conductor for an overcurrent protective device rated at 40 amperes is 10 AWG.
Question 2
Under the Utah Construction Trades Licensing Act Rule, how many hours of continuing
education must a licensed Master Electrician complete during each two-year renewal cycle?
A. 12 hours B. 16 hours C. 24 hours D. 32 hours
B. 16 hours
Explanation: Utah Administrative Code R156-55a requires licensed electricians to
complete 16 hours of approved continuing education every two years, with at least 12 hours
covering core education (NEC updates).
Question 3
,A 240-volt, single-phase continuous load draws 32 amperes. What is the minimum rating of
the overcurrent protective device for this circuit?
A. 35 amperes B. 40 amperes C. 45 amperes D. 50 amperes
B. 40 amperes
Explanation: Continuous loads must be calculated at 125 percent of the continuous load
current. Multiplying 32 amperes by 1.25 equals 40 amperes. The next standard size
overcurrent device is 40 amperes.
Question 4
Which of the following is an ethical violation for a licensed master electrician acting as a
qualifier for an electrical contractor in Utah?
A. Supervising multiple projects across different cities simultaneously. B. Allowing an
unlicensed individual to use the license to secure building permits. C. Submitting permit
drawings electronically rather than in person. D. Requesting an extension on an inspection
due to materials delays.
B. Allowing an unlicensed individual to use the license to secure building permits.
Explanation: Assisting or allowing an unlicensed person to use a contractor's license is a
clear violation of Utah law and professional ethics, constituting unlicensed practice
enablement.
Question 5
What is the maximum number of 12 AWG THHN conductors permitted in a 3/4-inch
Electrical Metallic Tubing (EMT)?
A. 9 B. 12 C. 16 D. 22
C. 16
Explanation: According to NEC Chapter 9, Annex C, Table C.1, the maximum number of
12 AWG THHN conductors permitted in a 3/4-inch EMT conduit is 16.
Question 6
A commercial kitchen contains four pieces of electric kitchen equipment: a 10 kW range, an
8 kW oven, a 5 kW deep fryer, and a 3 kW dishwasher. What demand factor can be applied
to these four loads?
A. 100 percent B. 80 percent C. 70 percent D. 65 percent
B. 80 percent
, Explanation: According to NEC Table 220.56, when demand factors for commercial
kitchen equipment are applied, a total of 4 units allows a demand factor of 80 percent to be
applied to the total connected load.
Question 7
In a health care facility, which of the following spaces is classified as a Critical Care Category
1 space?
A. Patient examination room B. General patient bedroom C. Intensive care unit (ICU) D.
Physical therapy room
C. Intensive care unit (ICU)
Explanation: NEC 517.2 and 517.18 define spaces where electrical failure could cause
imminent injury or death to a patient, such as critical care areas like ICUs, as Category 1
spaces.
Question 8
A 3-phase, 480-volt squirrel-cage induction motor has a full-load current rating of 40
amperes. What is the maximum rating of a dual-element time-delay fuse used for short-
circuit and ground-fault protection?
A. 50 amperes B. 70 amperes C. 90 amperes D. 100 amperes
B. 70 amperes
Explanation: NEC Table 430.52 allows a dual-element time-delay fuse to be sized up to
175 percent of the motor's full-load current. Multiplying 40 amperes by 1.75 equals 70
amperes.
Question 9
What is the maximum distance from the floor to the center of the operating handle of a
circuit breaker when it is in its highest position?
A. 5 feet, 6 inches B. 6 feet C. 6 feet, 7 inches D. 7 feet
C. 6 feet, 7 inches
Explanation: NEC 240.24(A) specifies that switches and circuit breakers used as switches
must be installed so that the center of the grip of the operating handle, in its highest
position, is not more than 6 feet, 7 inches above the floor or working platform.
Question 10
, When installing Type NM cable through bored holes in wooden framing members, what is
the minimum distance required from the edge of the hole to the nearest edge of the wood
member to avoid using a steel nail plate?
A. 1/2 inch B. 3/4 inch C. 1 inch D. 1-1/4 inches
D. 1-1/4 inches
Explanation: NEC 300.4(A)(1) states that if bored holes in wood framing members are
less than 1-1/4 inches from the nearest edge of the wood member, the cable must be
protected by a steel plate or sleeve at least 1/16 inch thick.
Question 11
Which of the following is true regarding the sizing of a pull box containing a straight pull of
size 4 AWG conductors or larger?
A. The length of the box must not be less than 6 times the trade diameter of the largest
raceway. B. The length of the box must not be less than 8 times the trade diameter of the
largest raceway. C. The distance must be 32 times the conductor diameter. D. The width
must equal the combined sum of all raceway entries.
B. The length of the box must not be less than 8 times the trade diameter of the largest
raceway.
Explanation: NEC 314.28(A)(1) mandates that for straight pulls involving conductors 4
AWG or larger, the length of the box must be at least 8 times the trade size of the largest
raceway entering the box.
Question 12
An applicant for a Utah electrical contractor license must post a continuous surety bond or
cash deposit in what standard amount if they have history of financial issues or infractions?
A. $5,000 B. $10,000 C. $25,000 D. $50,000
C. $25,000
Explanation: According to Utah Division of Professional Licensing (DOPL) rules, a license
bond of $25,000 is standard where special financial or compliance assurance is required for
construction trades.
Question 13
What is the clear working space depth required in front of live parts operating at 480 volts to
ground where there are grounded parts on the opposite side of the working space
(Condition 2)?
A. 3 feet B. 3-1/2 feet C. 4 feet D. 5 feet
DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains:* National Electrical Code (NEC) Compliance and Calculations* Services,
Feeders, and Branch Circuits* Grounding and Bonding* Conductors and Overcurrent
Protection* Motors, Generators, and Transformers* Special Occupancies, Equipment, and
Conditions* Low-Voltage and Communication Systems* Utah State Laws, Rules, and
Administrative Code Compliance* Safety Standards, OSHA, and Professional Ethics
IntroductionThe Utah Master Electrician Exam is designed to evaluate the advanced skills,
critical knowledge, and technical competency required for licensure at a master level. This
comprehensive assessment verifies an applicant's ability to interpret, apply, and enforce the
National Electrical Code along with Utah state-specific regulations. The exam incorporates a
strategic mix of multiple-choice questions and complex, scenario-based problems that
replicate field challenges. Emphasizing real-world applications and professional decision-
making, it tests the candidate's understanding of electrical theory, safety mandates,
engineering principles, and ethical standards required to oversee large-scale electrical
installations safely and legally.
SECTION ONE
Question 1
What is the minimum size copper equipment grounding conductor required for a branch
circuit protected by a 40-ampere overcurrent device?
A. 12 AWG B. 10 AWG C. 8 AWG D. 6 AWG
B. 10 AWG
Explanation: According to NEC Table 250.122, the minimum size copper equipment
grounding conductor for an overcurrent protective device rated at 40 amperes is 10 AWG.
Question 2
Under the Utah Construction Trades Licensing Act Rule, how many hours of continuing
education must a licensed Master Electrician complete during each two-year renewal cycle?
A. 12 hours B. 16 hours C. 24 hours D. 32 hours
B. 16 hours
Explanation: Utah Administrative Code R156-55a requires licensed electricians to
complete 16 hours of approved continuing education every two years, with at least 12 hours
covering core education (NEC updates).
Question 3
,A 240-volt, single-phase continuous load draws 32 amperes. What is the minimum rating of
the overcurrent protective device for this circuit?
A. 35 amperes B. 40 amperes C. 45 amperes D. 50 amperes
B. 40 amperes
Explanation: Continuous loads must be calculated at 125 percent of the continuous load
current. Multiplying 32 amperes by 1.25 equals 40 amperes. The next standard size
overcurrent device is 40 amperes.
Question 4
Which of the following is an ethical violation for a licensed master electrician acting as a
qualifier for an electrical contractor in Utah?
A. Supervising multiple projects across different cities simultaneously. B. Allowing an
unlicensed individual to use the license to secure building permits. C. Submitting permit
drawings electronically rather than in person. D. Requesting an extension on an inspection
due to materials delays.
B. Allowing an unlicensed individual to use the license to secure building permits.
Explanation: Assisting or allowing an unlicensed person to use a contractor's license is a
clear violation of Utah law and professional ethics, constituting unlicensed practice
enablement.
Question 5
What is the maximum number of 12 AWG THHN conductors permitted in a 3/4-inch
Electrical Metallic Tubing (EMT)?
A. 9 B. 12 C. 16 D. 22
C. 16
Explanation: According to NEC Chapter 9, Annex C, Table C.1, the maximum number of
12 AWG THHN conductors permitted in a 3/4-inch EMT conduit is 16.
Question 6
A commercial kitchen contains four pieces of electric kitchen equipment: a 10 kW range, an
8 kW oven, a 5 kW deep fryer, and a 3 kW dishwasher. What demand factor can be applied
to these four loads?
A. 100 percent B. 80 percent C. 70 percent D. 65 percent
B. 80 percent
, Explanation: According to NEC Table 220.56, when demand factors for commercial
kitchen equipment are applied, a total of 4 units allows a demand factor of 80 percent to be
applied to the total connected load.
Question 7
In a health care facility, which of the following spaces is classified as a Critical Care Category
1 space?
A. Patient examination room B. General patient bedroom C. Intensive care unit (ICU) D.
Physical therapy room
C. Intensive care unit (ICU)
Explanation: NEC 517.2 and 517.18 define spaces where electrical failure could cause
imminent injury or death to a patient, such as critical care areas like ICUs, as Category 1
spaces.
Question 8
A 3-phase, 480-volt squirrel-cage induction motor has a full-load current rating of 40
amperes. What is the maximum rating of a dual-element time-delay fuse used for short-
circuit and ground-fault protection?
A. 50 amperes B. 70 amperes C. 90 amperes D. 100 amperes
B. 70 amperes
Explanation: NEC Table 430.52 allows a dual-element time-delay fuse to be sized up to
175 percent of the motor's full-load current. Multiplying 40 amperes by 1.75 equals 70
amperes.
Question 9
What is the maximum distance from the floor to the center of the operating handle of a
circuit breaker when it is in its highest position?
A. 5 feet, 6 inches B. 6 feet C. 6 feet, 7 inches D. 7 feet
C. 6 feet, 7 inches
Explanation: NEC 240.24(A) specifies that switches and circuit breakers used as switches
must be installed so that the center of the grip of the operating handle, in its highest
position, is not more than 6 feet, 7 inches above the floor or working platform.
Question 10
, When installing Type NM cable through bored holes in wooden framing members, what is
the minimum distance required from the edge of the hole to the nearest edge of the wood
member to avoid using a steel nail plate?
A. 1/2 inch B. 3/4 inch C. 1 inch D. 1-1/4 inches
D. 1-1/4 inches
Explanation: NEC 300.4(A)(1) states that if bored holes in wood framing members are
less than 1-1/4 inches from the nearest edge of the wood member, the cable must be
protected by a steel plate or sleeve at least 1/16 inch thick.
Question 11
Which of the following is true regarding the sizing of a pull box containing a straight pull of
size 4 AWG conductors or larger?
A. The length of the box must not be less than 6 times the trade diameter of the largest
raceway. B. The length of the box must not be less than 8 times the trade diameter of the
largest raceway. C. The distance must be 32 times the conductor diameter. D. The width
must equal the combined sum of all raceway entries.
B. The length of the box must not be less than 8 times the trade diameter of the largest
raceway.
Explanation: NEC 314.28(A)(1) mandates that for straight pulls involving conductors 4
AWG or larger, the length of the box must be at least 8 times the trade size of the largest
raceway entering the box.
Question 12
An applicant for a Utah electrical contractor license must post a continuous surety bond or
cash deposit in what standard amount if they have history of financial issues or infractions?
A. $5,000 B. $10,000 C. $25,000 D. $50,000
C. $25,000
Explanation: According to Utah Division of Professional Licensing (DOPL) rules, a license
bond of $25,000 is standard where special financial or compliance assurance is required for
construction trades.
Question 13
What is the clear working space depth required in front of live parts operating at 480 volts to
ground where there are grounded parts on the opposite side of the working space
(Condition 2)?
A. 3 feet B. 3-1/2 feet C. 4 feet D. 5 feet
