Article 334-2008

Type NM cable on a wall of an unfinished basement installed in a raceway shall have a(n) __________ installed at the point where the cables enters the raceway. A) Insulating bushing or adapter B) Sealing fitting C) Bonding bushing D) Junction box

A) Insulating bushing or adaptor

Type NM cable shall closely follow the surface of the building finish or running boards when run exposed. A) True B) False

A) True

Where more than two Type NM cables are installed through opening in wood framing that is to be fire-or draft-stopped, the allowable ampacity of each conductor shall be ____________. A) No more than 20A B) Adjusted in accordance with T able 310.15(B)(2)(a) C) Limited to 30A D) Calculated by an engineer.

B) Adjusted in accordance with T able 310.15(B)(2)(a

Type NM cable can be installed as open runs in dropped or suspended ceilings in other than one- and two-family and multifamily dwellings. A) True B) False

B) False

The insulation temperature rating of conductors in Type NM cable shall be _________ A) 60 Degrees Celsius B) 75 Degrees Celsius C) 90 Degrees Celsius D) 105 Degrees Celsius

C) 90 Degrees Celsius

Type _____ cable is a factory assembly that encloses two or more insulated conductors within a nonmetallic jacket A) AC B) MC C) NM D) b and c

C) NM 334.2 Nonmetallic-Sheathed Cable.

Type NM cable protected from physical damage by a raceway shall not be required to be_____within the raceway. A) Covered B) Insulated C) Secured D) Unspliced

C) Secured

Type NM cable can be supported and secured by_______. A) Staples B) Cable ties C) straps D) All of these

D) All of these

Type TC cable can be used A) For power and lighting circuits B) In cable trays C) In Class 1 control circuits D) All of these

D) All of these

Type TC cable shall not be installed A) Where it will be exposed to physical damage B) Outside of raceway or cable tray system, unless permitted in 336.10(7) C) Direct buried unless identified for such use D) All of these

D) All of these

Type NM cable shall not be used_____. A) In other than dwelling units B) In the air void of masonry block not subject to excessive moisture. C) For exposed work D) Embedded in poured cement concrete or aggregate

D) Embedded in poured cement concrete or aggregate

Grommets or bushings for the protection of Type NM cable shall be________for the purpose. A) Marked B) Approved C) Identified D) Listed

D) Listed

Type NM cable shall be ________ A) Marked B) Approved C) Identified D) Listed

D) Listed

Where type in NM cable is run at angles with joists in unfinished basements and crawlspaces, it is permissible to secure cables not smaller than__________ AWG conductors directly to the lower edges of the joist. A) Two, 6 AWG B) Three, 8 AWG C) Three, 10 AWG D) a or b

D) a or b

Type NM cable shall be protected from physical damage by_______ A) EMT B) PVC conduit C) RMC without an overall nonmetallic covering D) any of these

D) any of these