What is the rate of flow of electric current if it is available at 120V and has a resistance of 15 ohms? What is the difference between alternating current and direct current? What are the various ways electric power can be produced? What fuels are used to power fossil-fuel electric-generating plants? What power source is used to drive emergency generators? How is electricity produced by utilizing normally wasted heat?

1. What is the rate of flow of electric current if it is available at 120V and has a resistance of 15 ohms?

2. What is the difference between alternating current and direct current?

3. What are the various ways electric power can be produced?

4. What fuels are used to power fossil-fuel electric-generating plants?

5. What power source is used to drive emergency generators?

6. How is electricity produced by utilizing normally wasted heat?

7. What are the types of electrical conductors recognized by codes?

8. What type of electrical conductor is used for underground applications?

9. What voltage current can be carried by flat conductor cables?

10. What types of conduit are in general use?

11. One kilowatt equals how many watt-hours?

12. What purpose do motor control centers serve?

13. What is the difference between the primary trans-former voltage and the secondary voltage?

14. What are the commonly available switch actions?

15. What ways are various types of switches activated?

16. What devices are used to protect a circuit from overloads?

17. How does a type S plug fuse keep someone from putting the wrong size fuse in a panelboard?

18. What are the types of fuses in common use?