> 2. What parts are termed dead (live)?
3. In what air does the risk of an electric shock decrease?
4. By what means is connection to ground made?
5. What does an electric shock result from?
6. Is a current of 50 mA dangerous for a man?
7. Is wet and hot atmosphere dangerous for the attending personnel?
8. Does the risk of an electric shock decrease with increasing current?
Task 8. Fill in using the verbs to detect, to appear, to disappear, to decrease:
1. When resistance increases, the risk of electric shock . . . . .
2. Faults in electric installations are . . . . by means of special devices.
3. Electric power . . . . only on live conductors with power on.
4. When the device is switched off electric power . . . . .
Task 9. Choose the suitable words.
1. The danger of electric shock (appears, disappears) when the conductor becomes (live, dead).
2. Current passes through faulty (earthed, unearthed) part of installations when the power is on.
3. Low accuracy of measurement is (an advantage, a disadvantage) of the measuring device.
4. The danger of electric shock (increases, decreases) in the wet and hot atmosphere.
5. No current flows through a (dead, live) conductor.
Task 10. Complete the sentences using the suitable words given below, guess the title of the text.
1. is generated by converting heat, light, chemical energy, or mechanical energy to electrical energy.
2. Most electrical energy is produced in large by conversion of mechanical energy or heat.
3. - generated by the conversion of light or chemical energy is used mainly for portable power sources.
4. Electric power produced in large power stations generally is transmitted by using an that reve
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