Maryland Journeyperson Electrician Exam, Branch Circuits, GFCI and AFCI: all 74 questions

All questions from the Branch Circuits, GFCI and AFCI section for Maryland Journeyperson Electrician Exam, each with the correct answer.

• 4001In a dwelling unit, GFCI protection is required for all 125-volt through 250-volt receptacles installed in which of the following locations?
• 4002A receptacle in a dwelling unit bedroom is installed 5 ft from the top inside edge of the bowl of a bar sink. Is GFCI protection required?
• 4003In a dwelling unit, receptacles within what distance of the outside edge of a bathtub or shower stall require GFCI protection?
• 4005Under the 2020 NEC, a 125-volt, 15-ampere receptacle installed behind the refrigerator in a dwelling kitchen does not serve the countertop and is more than 6 ft from the sink. Is GFCI protection required?
• 4009A dwelling has a fully finished basement used as a recreation room. Do the 125-volt receptacles in this finished basement require GFCI protection?
• 4010A single 125-volt receptacle in an attached dwelling garage is dedicated to a chest freezer. Is GFCI protection required?
• 4013Where must a GFCI device that provides the protection required by 210.8 be located?
• 4014When applying the 6 ft sink and bathtub distances in 210.8, how is the distance to a receptacle measured?
• 4015A dwelling has an indoor area that is a damp location, such as a covered utility room open to weather. Do 125-volt receptacles there require GFCI protection?
• 4017In a restaurant kitchen, which 125-volt, 20-ampere receptacles require GFCI protection?
• 4018A 125-volt receptacle is installed on the roof of an office building for servicing a rooftop unit. What protection is required?
• 4019In a fitness center, which of the following areas requires GFCI protection for its 125-volt receptacles under 210.8(B)?
• 4022In a commercial building, which of the following areas is excluded from the garage and service bay GFCI requirement in 210.8(B)?
• 4023A receptacle in a commercial building is located in an unfinished basement area used for storage. Is GFCI protection required?
• 4024A 125-volt receptacle in an office break room is 4 ft from the break room sink. Is GFCI protection required?
• 4030Under the NEC 2020 and 2023, dwelling unit outdoor outlets on single-phase branch circuits rated 150 volts or less to ground require GFCI protection up to what branch circuit rating?
• 4038In a dwelling unit, which of the following locations requires AFCI protection for 120-volt, 15- and 20-ampere branch circuits supplying outlets?
• 4040Which of the following dwelling unit circuits requires AFCI protection?
• 4042In a hotel, 120-volt, 15- and 20-ampere branch circuits supplying outlets in guest rooms and guest suites require which protection?
• 4047Which AFCI device installed at the origin of a branch circuit provides protection of the entire branch circuit?
• 4049What is the minimum number of 20-ampere small-appliance branch circuits required for receptacle outlets in a dwelling kitchen, pantry, breakfast room and dining room?
• 4050Which of the following is permitted to be supplied by a dwelling small-appliance branch circuit?
• 4051How may the receptacle outlet for a dwelling kitchen refrigerator be supplied?
• 4052What branch circuit is required in a dwelling unit to supply the laundry receptacle outlets?
• 4053A single 20-ampere branch circuit supplies receptacle outlets in all three bathrooms of a house. What else may this circuit supply?
• 4054A 20-ampere branch circuit supplies only one bathroom of a dwelling. Which of the following may it also supply?
• 4055Since the 2020 NEC, an attached dwelling garage must have at least one branch circuit for its receptacle outlets. What is the required rating of this circuit?
• 4056The required 20-ampere garage receptacle branch circuit in a dwelling is permitted to also supply which of the following?
• 4057In a dwelling living room, receptacles must be installed so that no point measured horizontally along the floor line of any wall space is more than what distance from a receptacle?
• 4058In a dwelling bedroom, what is the minimum width of a wall space that must be counted for receptacle placement under 210.52(A)?
• 4059Along a dwelling kitchen wall countertop, receptacles must be installed so that no point along the wall line is more than what distance from a receptacle outlet?
• 4060In a dwelling kitchen, a wall countertop space of what minimum width requires a receptacle outlet?
• 4061Receptacles installed on the wall above a dwelling kitchen countertop must be located not more than what distance above the countertop?
• 4062Under the 2020 NEC, a dwelling kitchen island countertop measures 48 in. by 24 in. How many receptacle outlets are required for this island?
• 4069A dwelling unit hallway must have at least one receptacle outlet when the hallway is at least how long?
• 4070For a one-family dwelling, how many outdoor receptacle outlets are required at grade level as a minimum?
• 4071A dwelling has a deck accessible from inside the dwelling. What is the maximum height of the required receptacle outlet above the deck walking surface?
• 4072A one-family dwelling basement has a finished area and two separate unfinished storage areas. How many receptacles are required in the unfinished areas as a minimum?
• 4073In a dwelling unit attached garage, at least one receptacle outlet is required in each vehicle bay at what maximum height above the floor?
• 4074In a dwelling bathroom, at least one receptacle outlet must be installed within what distance of the outside edge of each basin?
• 4075A dwelling foyer that is not part of a hallway requires a receptacle on each wall space 3 ft or more wide when the foyer area is greater than what size?
• 4076A receptacle in a dwelling living room is installed 6 ft above the floor. Does it count toward the required wall space receptacles?
• 4077A floor receptacle in a dwelling family room may count as the required receptacle for a wall space if it is located within what distance of the wall?
• 4078How many receptacle outlets in a hotel guest room must be readily accessible when the remaining receptacles are located for convenient furniture placement?
• 4079A hotel guest suite includes permanent provisions for cooking. Which receptacle rules apply to the suite?
• 4080A 20-ampere branch circuit supplies two or more receptacles. Which receptacle ratings are permitted?
• 4081A single receptacle is installed on an individual 20-ampere branch circuit. What is the minimum rating of the receptacle?
• 4082What is the maximum cord-and-plug load permitted on a 20-ampere receptacle supplied by a 20-ampere branch circuit with multiple outlets?
• 4084On a 20-ampere branch circuit, what is the maximum rating of a single cord-and-plug-connected utilization equipment not fastened in place?
• 4085A 20-ampere branch circuit supplies lighting units and also fastened-in-place utilization equipment. What is the maximum total rating of the fastened-in-place equipment?
• 4086Which loads are 40-ampere and 50-ampere branch circuits permitted to supply in any occupancy?
• 4087In a dwelling unit, a 30-ampere branch circuit is permitted to supply which of the following?
• 4088A branch circuit supplies a continuous load of 16 amperes and no noncontinuous load. What is the minimum conductor ampacity before any adjustment or correction?
• 4089A branch circuit supplies 24 amperes of continuous load and 6 amperes of noncontinuous load. What is the minimum standard overcurrent device rating?
• 4090For branch circuit sizing, a continuous load is one where the maximum current is expected to continue for how long?
• 4091When may a branch circuit overcurrent device be sized at 100 percent of the continuous load instead of 125 percent?
• 4094A multiwire branch circuit supplies receptacles in a dwelling. What does the NEC require at the point where the branch circuit originates?
• 4095A multiwire branch circuit in general may supply only which type of load?
• 4096How must the conductors of a multiwire branch circuit be identified in a panelboard?
• 4097In a 120/240-volt, 3-wire multiwire branch circuit, why must the two ungrounded conductors be connected to opposite lines?
• 4098In a dwelling living room, what may substitute for the required wall-switch-controlled lighting outlet?
• 4099In which dwelling rooms is a switched receptacle NOT permitted as a substitute for the required wall-switch-controlled lighting outlet?
• 4100A dwelling interior stairway has eight risers between floor levels. Where are wall switches required for the stairway lighting?
• 4101A dwelling attic contains a furnace that requires servicing. What lighting outlet is required?
• 4102For a dwelling, which of the following is NOT considered an outdoor entrance for the required exterior lighting outlet?
• 4103A 12 AWG copper THHN conductor has a 90 C ampacity of 30 amperes in Table 310.16. What is the maximum overcurrent protection generally permitted for it?
• 4104What is the ampacity of a 6 AWG copper THWN conductor in the 75 C column of Table 310.16?
• 4105A 30-ampere branch circuit terminates on equipment whose terminals are not marked with a temperature rating. Which column of Table 310.16 must be used to select the conductor?
• 4106An 8 AWG copper THHN conductor connects to terminals rated 75 C on both ends. What ampacity may be used for the circuit?
• 4107For a circuit rated over 100 amperes with conductors larger than 1 AWG, which temperature column may be used for termination purposes unless equipment is marked otherwise?
• 4108When 90 C rated THHN conductors are installed with 75 C terminations, what is the 90 C ampacity used for?
• 4109How may a 10 AWG grounded conductor be identified?
• 4110A 2 AWG grounded conductor has black insulation. How may it be identified as the grounded conductor?
• 4112A white conductor in a cable assembly is used as an ungrounded conductor for a switch loop. What does the NEC require?

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