1.
You need a branch-circuit conductor for a 40 A non-continuous load in EMT with 8 current-carrying conductors. Conductors are THHN copper (90 °C). Ambient temperature is 40 °C. What is the minimum conductor size required after applying adjustment and correction factors?
2.
A feeder supplies a 200 A panelboard. What is the minimum copper equipment grounding conductor size required?
3.
The disconnecting means for a 50 HP, three-phase, 460 V induction motor shall have a minimum ampere rating of:
4.
What is the minimum receptacle rating permitted on a 20 A branch circuit that supplies two or more receptacles or outlets?
5.
What is the maximum conduit fill percentage allowed for more than 2 conductors in a raceway?
6.
For a building supplied by a single service, what is the maximum number of service disconnects permitted?
7.
What is the minimum width of working space required for a panelboard?
8.
A 100 A feeder is supplying a panel 150 ft away at 208 V, 3-phase. THHN copper conductors, 75°C rating. What is the recommended maximum voltage drop for efficiency?
9.
A 4″ square box contains: Four #12 current-carrying conductors, One #12 equipment grounding conductor, One yoke-mounted duplex receptacle. What is the minimum required box volume?
10.
For a 400 A service with 600 kcmil Cu service entrance conductors, what is the minimum GEC size?
11.
The motor disconnecting means must be located:
12.
For equipment 480 V-to-ground with exposed live parts on one side and grounded parts on the other, minimum working space depth is:
13.
General lighting load for office areas shall be calculated at:
14.
Which of the following describes a Class I, Division 1 location?
15.
What is the minimum rating of the branch circuit required to supply a commercial electric sign or outline lighting system?
16.
Which of the following is required for single-phase, 120V through 240V pump motors connected to permanently installed swimming pools?
17.
What is the maximum system voltage permitted for underwater luminaires supplied by a listed low-voltage lighting system?
18.
How many branches must the essential electrical system in a hospital have?
19.
How many receptacles are required at each patient bed location in general care areas?
20.
What is required for branch-circuit wiring serving patient care areas?