Unit 1 Are you ready for a job interview? Unit 2 Can you read technical descriptions? Unit 3 Can you read user manuals? Unit 4 Do you have safety habits? Unit 5 Do you recognize the signs? Unit 6 Do you know how to replace a GFCI? Unit 7 Are you skilled at wiring? Unit 8 How should you deal with an electric shock? Unit 9 Can you lift heavy things safely?