NEC 2020 Code Changes for One and Two Family Residential and Commercial Electrical Installations - Quiz

Quiz Question

1.

NEC 2020 is still adopted in 2024 in the following States:

Hawaii, Alaska, Utah, Montana, North Dakota South Dakota, Iowa, Oklahoma, Arkansas, Louisiana, Georgis, South Carolina, North Carolina West Virginia, Connecticut, Rhode Island, Main , and Vermont.

True
False
2. According to 2020 NEX change; 110.14 (D) Terminal Connection torque. Tightening torque values for terminal connections ___________ on equipment or in installation instructions provided by the manufacturer.
shall be as indicated
shall be tight enough
Should not fall
3. According preface to the section 210.8; Ground-Fault Circuit- Interrupter (GFCI), the device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when a ground-fault cur- rent exceeds the values established for a Class A device.
True
False
4. According to 2020 NEC Changes; 210.8 Ground-fault circuit-interrupter protection for personnel shall be provided as required in 210.8(A) through (F). The ground-fault circuit interrupter shall be installed
in a readily accessible location.
Where the contractor thinks it’s a good location.
Away from a source of water.
5.

In210.8(A)(11) GFCI Protection Dwelling Units Indoor damp and wet locations.
New item #11 was added to cover indoor damp and wet locations to the requirement for GFCI protection in dwelling units. As required in part A, this covers all 125-volt through 250-volt receptacles installed in these types of locations. Some of these additional areas or locations could be considered as mud room or pet wash area for a dwelling unit. Ultimately, the Authority Having Jurisdiction will make the determination on damp or wet locations. The definitions in article 100 will provide guidance for these types of locations.

True
False
6.

In 210.8(B)(2) GFCI Protection, Other Than Dwelling Units Kitchens or areas, "kitchen" was changed to:

Just kitchen
An area with a sink and permanent provisions for food preparation and cooking.
7. In 210.8(B)(11) GFCI Protection, Other Than Dwelling Units Laundry areas.
"Laundry areas" have been added to part B as correlation with part A since the potential hazards exist both in dwelling units as well as commercial facilities such as laundry mats. In multi-family establishments such as con- dos and apartments tend to have a common laundry area and these areas are required to have GFCI protection for the receptacles. This would include the 125-volt through 250-volt receptacle as required in the general language of 210.8(B).
True
False
8. In 210.8(B)(12) GFCI Protection, other Than Dwelling Units Bathtubs and shower stalls. The bath tube and shower stalls – where receptacles are installed, they should be _________ away from the outside edge of the bathtub or shower stall.
3 feet
6 feet
12 feet
9.

In 406.12 tamper – resistant Receptacles 2020 NEC change: All 15- and 20-ampere, 125- and 250-volt non-locking-type receptacles in the areas specified in 406.12(1) through (8) shall be listed tamper-resistant receptacles.

  1. Dwelling units, including attached and detached garages and accessory buildings to dwelling units, and common areas of multifamily dwellings specified in 210.52 and 550.13
  2. Guest rooms and guest suites of hotels, motels and their common areas
  3. Child care facilities
  4. Business offices, corridors, waiting rooms and the like in clinics, medical and dental offices, and outpatient facilities
  5. Subset of assembly occupancies described in 518.2 to include places of awaiting transportation, gymnasiums, skating rinks, and auditoriums
  6. Dormitory units
  7. Assisted living facilities
True
False
10. In 680.21(C) & (D) Swimming Pools, Fountains, and Similar Installations
The reason for change was: The requirement has been modified to outlets supplying _____________________ with wording that correlates to other GFCI requirements. It specifies pool motors rated 150 volts or less to ground and 60 amperes or less, single- or 3-phase, shall be provided with Class A GFCI protection. This change will expand the GFCI protection requirements to other volt- age systems than previously required. The requirement has been modified to use the term outlet and removed the phrase "whether by receptacle or by direct connection". A part (D) was added as a new requirement for pool pump motor replacement in accordance with part (C) to require GFCI protection. Unfortunate circumstances have driven this much needed change to help protect from electrocution associated with pool motors
all pool motors and not just pool pump motors
just pool pump motors