Electrical 1st Period- Code 2026 Questions and
Correct Verified Answers (GRADED A+)
What is the difference between a compulsoray and an optional certification -
VERIFIED ANSWER - Compulsory= means that one must be an apprentice or
journeyman in order to work at the trade
If located indoors, the service disconnect must be located at a readily accessible
location and not more than: - VERIFIED ANSWER - None of the responses are
correct. There is no distance specified in the Code.
A service entrance is grounded to a single eight foot ground rod. The ground rod: -
VERIFIED ANSWER - must be supplemented with one additional electrode, if the
resistance of the ground rod is greater than 25 ohms.
Who is responsible for safety in the workplace - VERIFIED ANSWER - the employer
and the employee
A three-gang box is designed to: - VERIFIED ANSWER - contain three electrical
devices, where each is on its own yoke.
,The box used primarily with raceway installations where large conductors are
spliced or to allow pull point for conductors is a(n): - VERIFIED ANSWER - pull box.
Over metal studs, 1/2 inch dry wall is to be installed. An electrical box for a switch
is installed concealed into the wall space. The maximum amount the box can be
recessed back from the finished surface of this noncombustible material is: -
VERIFIED ANSWER - 1/4 inch
To support a paddle ceiling fan, a box: - VERIFIED ANSWER - must be listed as
suitable for the purpose.
Unless marked otherwise, a box used to support a ceiling mounted luminaire
(lighting fixture), must be able to support a weight of up to: - VERIFIED ANSWER -
50 pounds
The enclosure shown in the picture below is referred to in the Code as a: -
VERIFIED ANSWER - conduit body.
A nonmetallic octagon box contains internal cable clamps and three 14-2 type NM
cables. Type NM cables contain an equipment grounding conductors. A porcelain
lamp holder is secured to the box.
The smallest size of box required for this - VERIFIED ANSWER - 16 in3
,A metal box with electrical metallic tubing (EMT) entering the box is shown in the
diagram. Two of the four, AWG number 12, wires in conduit pass through the box
unspliced, with little or no slack. No equipment grounding conductor enters the
box, because for this installation conduit is used as the equipment grounding
conductor. The minimum size of device box required is: - VERIFIED ANSWER - 3×
2×2¾.
Examine the illustration below. A metallic single-gang box contains a switch, and
has two 14-2, type NM, cables entering the box. The type NM (nonmetallic
sheathed) cables all contain an equipment grounding conductor. The clamping
means supporting the cable to the box is external from the box. The minimum size
of this device box is: - VERIFIED ANSWER - 3×2×2¾.
A nonmetallic single-gang box contains a switch, and has two 14-2, type NM, cables
and one 14-3, type NM, cable entering the box. The type NM (nonmetallic sheathed)
cables all contain an equipment grounding conductor. The minimum size of this
device box is: - VERIFIED ANSWER - 20 in3.
Examine the box connector shown in the photo below. If four of these connectors
are installed in a 4-inch square junction box, the total conductor equivalent used
for clamps when determining box fill is: - VERIFIED ANSWER - 0
By accident, one additional pre-punched knockout is removed from a box. The box
- VERIFIED ANSWER - must be closed.
, A single-family dwelling served by a 120/240 volt, single-phase electrical system
is required to have a disconnect rated for at least: - VERIFIED ANSWER - 100
amperes.
The conductors that are run overhead from the utility transformer and are
connected to the service entrance conductors are commonly called: - VERIFIED
ANSWER - a service drop.
Examine the figure below. The panelboard is supplied with a 120/240 volt
electrical system. The panelboard is mounted on a wall and faces a furnace that is
mounted to the concrete floor of the building. The minimum distance from the
front of the panelboard to the furnace is: - VERIFIED ANSWER - 36 inches
Examine the picture shown to the right, the item identified with the letter "B" runs
vertically from the top of the meter box. When installing an overhead service
entrance, this item is called the riser or: - VERIFIED ANSWER - mast.
A dwelling is supplied with single-phase power at 120/240 volts, from a 3-wire
electrical system with a single 150-ampere rated main circuit breaker. The
calculated demand load for the building is 138 amperes. Assume all terminations
are rated for 75° C. If the service entrance conductors are aluminum with Type
THWN insulation, the minimum size of ungrounded conductors permitted for this
service is: - VERIFIED ANSWER - 2/0 AWG.
Correct Verified Answers (GRADED A+)
What is the difference between a compulsoray and an optional certification -
VERIFIED ANSWER - Compulsory= means that one must be an apprentice or
journeyman in order to work at the trade
If located indoors, the service disconnect must be located at a readily accessible
location and not more than: - VERIFIED ANSWER - None of the responses are
correct. There is no distance specified in the Code.
A service entrance is grounded to a single eight foot ground rod. The ground rod: -
VERIFIED ANSWER - must be supplemented with one additional electrode, if the
resistance of the ground rod is greater than 25 ohms.
Who is responsible for safety in the workplace - VERIFIED ANSWER - the employer
and the employee
A three-gang box is designed to: - VERIFIED ANSWER - contain three electrical
devices, where each is on its own yoke.
,The box used primarily with raceway installations where large conductors are
spliced or to allow pull point for conductors is a(n): - VERIFIED ANSWER - pull box.
Over metal studs, 1/2 inch dry wall is to be installed. An electrical box for a switch
is installed concealed into the wall space. The maximum amount the box can be
recessed back from the finished surface of this noncombustible material is: -
VERIFIED ANSWER - 1/4 inch
To support a paddle ceiling fan, a box: - VERIFIED ANSWER - must be listed as
suitable for the purpose.
Unless marked otherwise, a box used to support a ceiling mounted luminaire
(lighting fixture), must be able to support a weight of up to: - VERIFIED ANSWER -
50 pounds
The enclosure shown in the picture below is referred to in the Code as a: -
VERIFIED ANSWER - conduit body.
A nonmetallic octagon box contains internal cable clamps and three 14-2 type NM
cables. Type NM cables contain an equipment grounding conductors. A porcelain
lamp holder is secured to the box.
The smallest size of box required for this - VERIFIED ANSWER - 16 in3
,A metal box with electrical metallic tubing (EMT) entering the box is shown in the
diagram. Two of the four, AWG number 12, wires in conduit pass through the box
unspliced, with little or no slack. No equipment grounding conductor enters the
box, because for this installation conduit is used as the equipment grounding
conductor. The minimum size of device box required is: - VERIFIED ANSWER - 3×
2×2¾.
Examine the illustration below. A metallic single-gang box contains a switch, and
has two 14-2, type NM, cables entering the box. The type NM (nonmetallic
sheathed) cables all contain an equipment grounding conductor. The clamping
means supporting the cable to the box is external from the box. The minimum size
of this device box is: - VERIFIED ANSWER - 3×2×2¾.
A nonmetallic single-gang box contains a switch, and has two 14-2, type NM, cables
and one 14-3, type NM, cable entering the box. The type NM (nonmetallic sheathed)
cables all contain an equipment grounding conductor. The minimum size of this
device box is: - VERIFIED ANSWER - 20 in3.
Examine the box connector shown in the photo below. If four of these connectors
are installed in a 4-inch square junction box, the total conductor equivalent used
for clamps when determining box fill is: - VERIFIED ANSWER - 0
By accident, one additional pre-punched knockout is removed from a box. The box
- VERIFIED ANSWER - must be closed.
, A single-family dwelling served by a 120/240 volt, single-phase electrical system
is required to have a disconnect rated for at least: - VERIFIED ANSWER - 100
amperes.
The conductors that are run overhead from the utility transformer and are
connected to the service entrance conductors are commonly called: - VERIFIED
ANSWER - a service drop.
Examine the figure below. The panelboard is supplied with a 120/240 volt
electrical system. The panelboard is mounted on a wall and faces a furnace that is
mounted to the concrete floor of the building. The minimum distance from the
front of the panelboard to the furnace is: - VERIFIED ANSWER - 36 inches
Examine the picture shown to the right, the item identified with the letter "B" runs
vertically from the top of the meter box. When installing an overhead service
entrance, this item is called the riser or: - VERIFIED ANSWER - mast.
A dwelling is supplied with single-phase power at 120/240 volts, from a 3-wire
electrical system with a single 150-ampere rated main circuit breaker. The
calculated demand load for the building is 138 amperes. Assume all terminations
are rated for 75° C. If the service entrance conductors are aluminum with Type
THWN insulation, the minimum size of ungrounded conductors permitted for this
service is: - VERIFIED ANSWER - 2/0 AWG.
