Electric ShockVoltage applied to your body may result in an electric shock. You will get it if you touch “live” conductors when the power is on. When you touch a wire conductor with both hands the resistance of the body to the conductors is from 10, 000 to 50, 000 W. When you touch a conductor with one hand, the resistance is much higher. The higher is the body resistance the smaller is the current that can flow through the body. Take it into consideration and work with only one hand if the power is on. Do not let the other hand touch the conductors! Or work on the circuit with the power off. 1. What is the above text about? 2. What are its main points? 3. When does one get an electric shock? 4. What is the relation between the body resistance and the value of current flowing through the body?
10. Расскажите о: 1) вашей специальности инженера-энергетика; 2) перспективах развития энергетики; 3) роли энергетики в развитии современного общества (социальные и экологические проблемы).
HEAT& POWER ENGINEERING 1. Повторите за диктором следующие слова и словосочетания, запомните их:
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heat power
thermal power
underground
subterranean
hothouse
greenhouse
