1. Insulated handles are important on many electrician’s tools because_________________.

2. Why must all joints, connections, and splices be contained in a box?
 
 

3. List four shapes of boxes

1. ______________
2. ______________
3. ______________
4. ______________

4. NEC requires a grounding bushing wherever conduit enters a non-threaded opening on a box.

a) True  b) False

5. The minimum branch circuit wire number that may be installed in a dwelling is #________AWG.

6. A #8 copper wire THWN has an ampacity of __________Amps.

7. The neutral wire is always black or red

a) True  b) False

8. In a receptacle, the hot wire is connected to the brass-colored terminals

a) True  b) False

9. What size box is needed when there are two #10 AWG conductors, six #12 AWG conductors, and four #14 AWG conductors?
 
 

10. What size box is needed to install four # 12 conductors, two # 14 conductors, four grounding conductors, and three cable clamps?
 
 
 

11. When a receptacle is installed in a metallic box it must always be connected to ground through the grounding hex screw.

a) True  b) False

12. As the AWG number becomes smaller, the wire size becomes

a) Larger b) Smaller

13. When using a #12 THWN copper wire in a branch circuit, the over-current protection shall not exceed ___________Amps.

14. The maximum number of conductors # 12 that can be allocated in a 4 x 1¼ square box is ____________.

15. The allowable ampacity for a # 2/0  THHN copper wire is __________Amps.