Lesson 8 quiz

What is the allowable ampacity reduction percentage for services rated 100-400 amp located in one and two family and multi-family dwelling units?

What size parallel copper conductors would you select, from the 75° C column, to cover a 349 amp load?

What size copper conductor’s would you select from the 75°C column to cover a 229 amp load?

What is the maximum recommended voltage drop for any 1 circuit?

Intrinsically safe apparatus, enclosures, and raceways shall be connected to the equipment ground conductor if metal?

Outdoor overhead conductors over _____ volts shall be permitted only for systems rated over ______ volts.

What is the Ampacity of 250 kcmil copper conductor in the 75°C Column?

What is the ampacity of a 4/0 copper conductor in the 75° C column?

What is the ampacity of an 8 gauge aluminum conductor in the 75° C column?

What size aluminum conductor’s would you select do for the 75°C column, to cover a 135 amp load?

What size aluminum conductor’s would you select do for the 75°C column, to cover a 229 amp load?

What size over current protection would you select for a 47 amp load?

Cabinets and cut-out boxes shall be deep enough to allow the closing of the doors when _____ amp branch circuit panel board switches are in any position.

What is the Voltage drop of a 200 amp circuit using 4/0 copper conductors that is 225 ft long on a 120/240 system?

Splices and taps within nonmetallic wire-ways shall not fill the wire-way more than ______%.

What is the minimum burial depth for conductors in intermediate metal conduit that run under a building?

What is the total cubic fill you would calculate for 5 #12 conductors and 6 #10 conductors?

What is the total cubic inch count for 18 #12 conductors when calculating box fill?

What is the total cubic inch value of 16 #10 conductors when calculating box fill?

For pipe fill purposes, when will you use the 60% fill column of table 4?