1. Name some of the practical uses of electricity.
2. What are the possibilities and limitations of electrical heating?
3. Describe some of the principle lines of electrical work.
4. What is the difference between outside and inside wiring?
5. Describe the method of transmitting electricity over a long distance.
6. How is the size of wire for transmitting electricity regulated?
7. What is the difference between the kilowatt and kilowatt-hour?
8. What are some of the common injuries in electrical work?