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WorksheetsBox Fill
Total questions: 18
Worksheet time: 9mins
What Article in the NEC book covers Box Fill?
210.16
314.16
842.10
210.52
How many #12 wires can we install in a Metal 4" x 2-1/8" Square Box.
15
10
20
13
How many Cubic Inches are there in a Metal 4" x 1-1/2" Round Box?
15.5
21.2
12.5
14
How many #10 wires are allowed in a 3" x 2" x 3-1/2" Device Box
5
6
7
8
When calculating the cubic inches being taken up in a box with mixed gauge wires, #12 Gauge wire is counted as __________ Cubic inches
2
2.25
2.50
2.75
Which of the following lists 1 of the The Box Capacity Deductions taken into account when Calculating Box Fill.
Wires Nuts
Cable Connectors
Pig Tales
Stud
The GFCI Receptacle shown on the Picture counts as ________ Wire(s)
2 # 12s
2 - #20s
2 - #14
1- #12
In the Picture shown there are 2 switches wires with #14 Gauge wire and 1 Receptacle wired with #12 Gauge Wire. The combination Device (Switch/Receptacle) on the right count as _____
3 #12s
4 # 12s
2 #12s
2# 114s
If we have a 3" x 2" x 2-1/2" Device Box with 3 - #12s Non-Metallic cables, All the equipment Grounding wires combined count as _____
3 -#12s
4 -#12s
2 - #12s
1 -#12
In which of the following boxes can you find a hickey
4" x 2-1/8 Round Box Bar Box
3" x 2" x 2 -3/4" Device Box
4" x 1-1/2" Square Box
4" x 2-1/8" Square Box
How many Cubic Inches will 6 #14 wires take up in a box?
6
20
15
28
After 4 Equipment Grounding Conductors in a box, we have to count each additional Grounding wire as _______ of a wire.
1/3
1/4
1/2
1/8
How many Cubic Inches does a 4-11/16" x 1-1/4" Square Box have
12.4
172
418
25.5
How many wires are deducted for a Yoke/Strap?
1
2
3
4
4 CLAMPS in box with three 14-2 Romex cables inside, count as
1 #14
4 #14
2 #14
Clamps do not count
How do you determine how many #14 wires you are allowed in a Plastic Nail-on Box
Look it up in the NEC Book
There is no way to determine number of wires in a box without calculating it
The information is printed in the inside of the box
Look up wires in the NEC Book
How do you find out how many #12 gauge wires we are allow in a metal box
Look it up in the NEC Book
The information is printed in the box
11 # 12
There is no limit to the #12 wires we can put in a metal box
Metal 4" Round boxes are also known as
4" Square Boxes
4" Octagonal Boxes
4" Device Boxes
3 x 2 x 2-1/4 Device Box
