Modern Commercial Wiring

Know the Code

100

NEC article 250 covers this topic

Grounding and Bonding 

200

Which NEC article would you reference for the definition of a word found throughout the code 

Article 100 

300

What is the maximum percent fill for a 24" piece of conduit with more than 2 conductors 

60%

400

Which NEC table would you reference to determine a conductors ampacity  

T310.16

500

What is the ampacity adjustment factor used when 7-9 conductors are installed in the same raceway

.70

Safety First

100

Before working on a circuit, you should perform this safety procedure 

Test before you touch. Lock-out Tag-out. Live dead live testing 

200

When it comes to safety on a jobsite, personal protective equipment is the _____ line of defense against injury 

last 

300

Name 3 types of personal protective equipment that is commonly required on a construction site 

Hardhat, cut resistant gloves, safety glasses, steel toe boots

400

How far above a work surface edge does an extension ladder need to extend

3 feet

500

Name all four of OHSA'S Construction Focus Four

Falls, Caught-in or caught-between, Struck by, Electrocution

Tools of the Trade

100

What is the name of the tool used for pulling conductors through conduit 

Fish tape 

200

Used to strip insulation from wires without damaging the conductor

Wire stripper

300

Name the hand tool used to remove burrs from the ends of conduit 

Conduit reamer 

400

Which function on a multi meter would you use to determine if their is a pathway between 2 points in a circuit

Continuity

500

Name the specific type of hole saw used for tasks which require drilling into metal

Carbide

Boxes and Fittings

100

This fitting connects two pieces of conduit in a straight line

Coupling

200

Used to house conductors where multiple circuits join together

Junction box

300

This type of box is often used after the completion of construction to add a device 

Old-work, Cut-in

400

A fitting that seals conduit against moisture and dust is called  

Compression 

500

A gasketed fitting often used to connect rigid metal conduit to an electrical box or panel  

Myers hub

Wiring Methods

100

This type of conduit is commonly found in commercial buildings 

EMT 

200

Which type of conduit is typically used for underground installations  

PVC

300

What is the maximum degree of bends the NEC allows between pull and junction points

360

400

Type of metal conduit that is often used in areas subject to severe physical damage  

Rigid 

500

What does the abbreviation THHN stand for 

Thermoplastic heigh-heat resistant nylon-coated wire