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IEC YEAR 2 FINAL EXAM ACTUAL EXAM 2024-2025 COMPLETE
300 QUESTIONS AND ANSWERS ALREADY GRADED A+ JUST
RELEASED
What is the maximum allowable voltage between conductors on a branch circuit supplying lighting fixtures (luminaires) in a residence?120 volts What is the minimum number of 20-ampere branch circuits for small appliances required in a residence?2 Branch circuits that serve a ___ are required to be rated at 20 amperes where installed in a house.a.bathroom b.kitchen c.laundry room d.all of the above (correct) Branch circuits are rated according to ___.the ampere rating of the overcurrent device Refer to the Article 100 definition for continuous load in the NEC®. According to 210.19(A) the branch-circuit conductors for a continuous load shall be sized at not less than ___ of the current drawn by the load.125% The smallest permissible wire size for branch circuit conductors supplying other than cooking appliances is ___ AWG according to the NEC®.
14 1 / 4
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2 When several receptacles are connected to a 20-ampere branch circuit, these receptacles are required to be rated ___.15 or 20 amperes A ___-amp circuit breaker is the largest that can be installed on a 12 AWG copper circuit conductor. The circuit is connected to several receptacles.20 When a single receptacle is connected to a branch circuit (the circuit has no other loads), the receptacle must have an ampere rating ___ the ampere rating of the OCPD protecting the branch circuit.greater than or equal to Branch circuits are rated according to their ___.overcurrent protective device rating The maximum permitted current rating of a portable appliance on a 30-ampere branch circuit is ___ amps.24 What is the minimum size THHN/THWN wire permitted to serve a load that will draw 47 amps? The load will operate for about 5 hours at a time. The branch-circuit OCPD is a circuit breaker that is rated for 75°C.
6 AWG`
In a dwelling, a living room branch circuit with a 20-ampere rating can be loaded to a maximum of ___ amperes.20 Fastened-in-place utilization equipment that is connected to a branch circuit with other loads shall not exceed ___ percent of the branch circuit rating. 2 / 4
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3 50 Along a kitchen countertop in a restaurant, the maximum spacing between receptacles is ___.not specified Receptacles in a finished basement must be installed such that no point measured horizontally along the floor line of any wall space is more than ___ feet from a receptacle outlet.6 Refer to Figure 108.014. This kitchen is in a house and width of the countertop where receptacle 9 is located is 13″. Is receptacle 9 required by the NEC®?yes Where fixed glass panels (i.e., windows or non-sliding parts of doors) do not permit installation of wall-mounted receptacles, ___ are typically used to satisfy the receptacle spacing requirements of NEC® 210.52(A)(1) and (2).floor-mounted receptacles In a dwelling, what is the minimum width of a wall space that requires a receptacle outlet?
- feet
In a house ___ receptacles should be installed along a 15-foot long kitchen countertop per the minimum requirements in the NEC®.4 The plan view for the kitchen countertops in a house is shown in Figure 108.013. The fewest number of receptacles that can be installed along the 7′-9″ & 7′-1″ countertops is ___.
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4 A 23-foot long hallway is shown above in Figure 108.020. If this hallway is in the Mayor's house, how many wall receptacles are required by the NEC®?at least one Where are electrical receptacle outlets not permitted to be located?Above certain electric baseboard heaters In a house, when laying out the wall receptacle locations in a bedroom, make sure that a receptacle is installed in any wall space ___ wide or greater.
- feet (600 mm)
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When a single-car garage is attached to a house, the NEC® requires that the garage have at least ___ receptacle(s) installed inside the garage.one (on any wall) A receptacle under the kitchen counter of a dwelling is used to supply power to a dishwasher.This receptacle is ___ to be connected to one of the two required small-appliance branch circuits.not permitted The plan view of the atrium (foyer) in a large home is shown at the right. The fewest number of convenience receptacles that can be installed per the NEC® is ___.2 Although not enforceable, a feeder conductor should be sized so that the maximum total voltage drop on both feeders does not exceed ___% to provide reasonable efficiency of operation.5 When calculating the size of a service, the dryer shall either be ___ volt-amperes or the nameplate rating, whichever is greater.