TLC National Journeyman Baseline Quiz – 2014 NEC

Welcome to your TLC National Journeyman Baseline Quiz – 2014 NEC

1. 
What is the minimum size copper-clad aluminum service-entrance conductor for a 200-ampere, 120/240-volt, 3-wire, single-phase dwelling service?

2. 
A service is supplied by four sets of 500 kcmil copper conductors in parallel. What is the minimum size copper grounding electrode conductor to a metal water pipe?

3. 
Where a service is supplied by 500 kcmil copper conductors, what is the minimum size copper grounding electrode conductor (GEC) to a concrete-encased electrode?

4. 
Which of the following is NOT a recognized method for identifying an equipment grounding conductor?

5. 
What is the maximum number of 12 AWG THHN conductors permitted in a 4-inch x 1-1/2 inch square metal box that contains no other devices or fittings?

6. 
If you have six 8 AWG THHN copper current-carrying conductors in a single raceway in an ambient temperature of 30°C, what is the adjusted ampacity of each conductor?

7. 
What is the maximum number of 14 AWG THHN conductors permitted in a 1/2 inch Trade Size EMT?

8. 
What is the maximum rating of a cord-and-plug-connected load to a 20-ampere branch circuit that also supplies lighting units?

9. 
A 10-HP, 208-volt, three-phase motor has a nameplate FLC of 30.2A and a service factor of 1.15. What is the maximum setting for the overload protection?

10. 
A dry-type transformer is rated at 75 kVA, 480V primary to 208V secondary. What is the maximum size for the primary OCPD (standard size) if only primary protection is provided?

11. 
The disconnect for a sign in a commercial location must be within sight of the sign, or it must be:

12. 
A "Point of Entrance" for a communications cable is defined as the point at which the cable:

13. 
What is the minimum headroom of working spaces about service equipment or motor control centers?

14. 
A GFCI-protected receptacle in a dwelling unit garage is required for:

15. 
What is the voltage drop for a 240V, 1-phase circuit using 10 AWG copper (1.2 ohms/kft) carrying 24A for 150 feet?

16. 
A continuous load on a feeder is calculated at what percentage of its value?

17. 
What is the maximum overcurrent protection for a 16 AWG Copper wire?

18. 
What is the minimum height of a service-drop conductor over a residential driveway?

19. 
When installing a 125V, 15A/20A receptacle on a rooftop for HVAC, what is the maximum distance it can be from the equipment?

20. 
What is the maximum number of disconnects allowed to be grouped in one location for a single service?