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WorksheetsC,S,P II Level I - Branch Circuits I
Total questions: 20
Worksheet time: 20mins
The portion of the circuit between the last over-current protection device and the outlets or utilization equipment is known as what?
service entrance conductors
feeder
branch circuit
utilization equipment
A branch circuit that supplies two or more outlets for lighting and appliances is know as what?
individual branch circuit
appliance branch circuit
general-purpose branch circuit
multi-wire branch circuit
A branch circuit with two or more ungrounded conductors having a voltage between them, and a grounded conductor having equal voltage between it and each ungrounded conductor, and is connected to the neutral conductor of the system is known as what?
individual branch circuit
appliance branch circuit
multi-wire branch circuit
general-purpose branch circuit
The photo above depicts what type of branch circuit?
general-purpose
individual
appliance
multi-wire
A branch circuit that supplies only one piece of utilization equipment is known as what?
appliance branch circuit
individual branch circuit
multi-wire branch circuit
general-purpose branch circuit
A branch circuit that supplies energy to one or more outlets to which appliances are to be connected is known as what?
multi-wire branch circuit
individual branch circuit
appliance branch circuit
general-purpose branch circuit
How many 15 A general-purpose branch circuits are required to serve a dwelling unit with a general lighting load of 12,000 VA?
4
5
6
7
8
In addition to the branch circuits required to serve the general lighting load, what additional branch circuits listed below are required for a dwelling unit?
two or more 125 V, 20 A small appliance branch circuits
one 20 A laundry circuit
one 20 A bathroom circuit
one 15 A outside branch circuit for holiday lighting
one 20 A branch circuit for the garage
How is a continuous load defined?
A load where the maximum current is expected to continue for no less than 24 hours a day, seven days a week
A load where the minimum current is expected daily
A load where the maximum current is expected to continue for 3 hours or more
All loads are continuous
If a portable microwave oven is connected to a 20A branch small appliance branch circuit, the ampere rating of the microwave should NOT exceed what value?
24
16
15
12
Where connected to a 20 A branch circuit supplying two or more receptacles or outlets, it shall be permissible to utilize which of the following receptacles?
not over 15 A
20 A
15 A or 20 A
not over 30 A
If a window-mounted air conditioning unit connected to a receptacle that is part of a 15 A general-purpose branch circuit that also supplies lighting fixtures and other equipment in a living room of a dwelling unit, the ampere rating of the A/C unit shall not exceed what value?
5
7.5
10
12
What is the minimum ampacity for an individual branch circuit used to provide power to a electric vehicle charger rated at 48 amperes? (it takes a minimum of 4-hours to charge the vehicle)
50 A
60 A
70 A
85 A
Receptacle outlets installed in dwelling units for specific appliances, such as laundry equipment, shall be located within how many inches of the appliance?
18"
36"
60"
72"
A 125V, 20A receptacle outlet is installed for this roof top air handler unit. This receptacle requires which of the following? (select all that apply)
GFCI
Weather Resistant Receptacle
In-Use Extra Duty Cover
Located within 25 feet of the equipment.
All 125V, 15A and 20A receptacles installed in dwelling unit bathrooms shall be GFCI protected.
Only if readily accessible.
True
False
Only if located within 6 feet of a wash basin or sink.
Combination-Type AFCI devices provide protection against which types of arcing faults (choose all that apply)?
series
parallel
line-to-ground
electric shock
All receptacles which serve countertops in dwelling kitchens shall be GFCI-protected.
True
False
Class-A GFCI device for the protection of personnel is designed to open the circuit when the current to ground exceeds what level?
4-6 mA
4-6 A
10 mA
10 A
For an area to qualify as a bathroom, a __________ shall be present.
bathtub
basin
toilet
shower
