Question 1

What is the temperature rating for conductors enclosed in nonmetallic-sheathed cable?&#10;A) 70 degrees Celsius&#10;B) 80 degrees Celsius&#10;C) 90 degrees Celsius&#10;D) 100 degrees Celsius

Accepted Answer

The temperature rating for conductors enclosed in nonmetallic-sheathed cable is 90 degrees Celsius, as per the National Electrical Code (NEC). This is because nonmetallic-sheathed cable is commonly used in residential wiring where the temperature may rise due to various factors like insulation, proximity to heat sources, etc. So, it requires a higher temperature rating to prevent melting, degradation, and other safety hazards.

Question 2

What is the most frequently used publication of the National Fire Protection Association?&#10;A) The U.S. Electrical Specifications&#10;B) The National Electrical Code&#10;C) The Life Safety Code&#10;D) The Handbook for Electrical Safety in the Workplace

Accepted Answer

The National Electrical Code (NEC) is the most frequently used publication of the National Fire Protection Association (NFPA). The NEC provides guidelines for safe electrical installation and is widely adopted and enforced by local and state authorities in the US.

Question 3

Underground feeder and branch-circuit cable is known as Type ____ cable.&#10;A) BC&#10;B) UFBC&#10;C) UC&#10;D) UF

Accepted Answer

Underground feeder and branch-circuit cable is commonly known as UF cable.

Question 4

Another name for metal-clad cable is Romex.

Accepted Answer

Metal-clad cable is different from Romex. Romex is a brand name for a type of non-metallic (NM) electrical cable that has a plastic sheathing. Metal-clad cable, on the other hand, has a metal sheathing.

Question 5

Rigid metal conduit has a(n) ____ raceway of circular cross-section.&#10;A) threadable&#10;B) smooth&#10;C) insulated&#10;D) flexible

Accepted Answer

Rigid metal conduit (RMC) is known for its threadable property, allowing for secure connections and fittings, unlike options that suggest flexibility or insulation, which are characteristics of different types of conduits.

Question 6

Conduit bodies are used in a conduit system to allow access for the pulling of wires, contain splices, and allow for the mounting of devices (switches, receptacles, etc.).

Accepted Answer

Conduit bodies are used to provide access for pulling wires and making splices, but they are not designed for mounting devices like switches or receptacles.

Question 7

There have been many electrical codes developed on the state, local and national levels.

Accepted Answer

Yes, there have been many electrical codes developed on the state, local and national levels to ensure safety and standardization in electrical installations.

Question 8

Which type of service entrance cable is identified for underground use?&#10;A) Type USE&#10;B) Type SE&#10;C) Type TL&#10;D) Type UL

Accepted Answer

Type USE cable is specifically designed for use underground and is suitable for direct burial without the need for a conduit. Type SE, TL, and UL cables are not specifically intended for underground use.

Question 9

Which type of cable is color coded for easy conductor size identification?&#10;A) USE cable&#10;B) NM cable&#10;C) MC cable&#10;D) AC cable

Accepted Answer

NM (non-metallic) cable, also known as Romex, is color coded for easy conductor size identification. The size of the cable is indicated by a colored stripe on the outer sheath, with 14-gauge wire having a white stripe, 12-gauge wire having a yellow stripe, and 10-gauge wire having an orange stripe. USE, MC, and AC cables are not typically color coded for easy conductor size identification.

Question 10

NFPA 79 Electrical Standard for Industrial Machinery is a publication of the ____.&#10;A) Armored Cable Code&#10;B) National Electrician's Association&#10;C) National Electrical Code&#10;D) National Fire Protection Association

Accepted Answer

NFPA 79 Electrical Standard for Industrial Machinery is a publication of the National Fire Protection Association.

Question 11

What does FMC stand for?&#10;A) Flexible metal connectors&#10;B) Fireproof mechanical connectors&#10;C) Flexible metal conduit&#10;D) Fittings made for conduit bodies

Accepted Answer

The answer of What does FMC stand for?&#10;A) Flexible metal...

Question 12

The primary goal of the NFPA is &#34;to promote the science and improve the methods of electrical wiring.&#34;

Accepted Answer

The answer of The primary goal of the NFPA is...

Question 13

Armored cable has a flexible metallic enclosure.

Accepted Answer

The answer of Armored cable has a flexible metallic enclosure....

Question 14

Fittings are intended to perform a(n) ____ function.&#10;A) electronic&#10;B) safety&#10;C) electrical&#10;D) mechanical

Accepted Answer

The answer of Fittings are intended to perform a(n) ____...

Question 15

The NEC applies to ____.&#10;A) automobiles&#10;B) ships&#10;C) aircraft&#10;D) government buildings

Accepted Answer

The answer of The NEC applies to ____.&#10;A) automobiles&#10;B) ships&#10;C)...

Deck 10: Wiring Methods