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II. Translate the following word combinations:

a) solar heat, solid fuel, steam engine, combustion engine, wind power, solar generator.

b) hydraulic power plant, steam turbine plant, wind power plant, diesel internal combustion engine, small capacity hydroelectric power plant, local power supply.

III. Fill in the blanks with the prepositions.

because of, in addition to, according to, in spite of, due to, by means of, as to

    1. Things fall under their own weight with an acceleration…… gravity.

    2. …the modern theory electrons can revolve only in definite orbits around the nucleus.

    3. …its usefulness a direct current systems have one great disadvantage.

    4. Any moving body will continue to move …its inertia .

    5. …instruments measuring current and voltage there are devices for measuring energy.

    6. The energy of falling water is transformed into electric energy … hydraulic turbines.

    7. … metals they differ greatly in the ease with which electrons can be made to move from atom to atom.

    8. The problem was whether the element can be arranged … that law.

    9. … magnetic effects, dynamos are able to convert mechanical energy into electrical energy with a loss of only a few per cent.

IV. Test. Choose the correct variant:

1. An electric power plant

a) transmits electric energy.

b) generates electric energy.

2. Prime movers use energy of

a) one kind.

b) various kinds.

3. Steam engine plants serve for …

a) industrial power supply.

b) local power supply.

4. Combustion engines are employed in

a) diesel- engine plants.

b) steam engine plants.

V. Answer the questions:

  1. What plants generate electric energy?

  2. What kinds of energy do prime movers employ?

  3. What sources of energy are in use today?

  4. What power plants do you know?

  5. How are plants with different kinds of prime movers called?

  6. What are main generating units at steam turbine plants?

  7. In what plants are combustion engines employed?

  8. What are diesel- engine plants?

  9. How are plants employing water turbines called?

  10. Where are wind-electric power plants widely used?

Text 6.

I. Read the text and be ready to do exercises that follow it.

Vocabulary

to deliver [di'livә] доставить, вручить

to require [ri'kwaiә] требовать

peat [pi:t] торф

shale [ʃeil] глинистый сланец

to convert [kәn'vә:t] превращать, конвертировать

fuel [fjuәl] топливо, горючее

pipeline ['paiplain] трубопровод, нефтепровод

to unload [‘ʌn’lәud] разгружать, выгружать

storage [’stә:ridʒ] хранение, склад, хранилище

furnace ['fә:nis] печка, очаг, горн, топка

powder [’paudә] порошок, пудра, порох

to crush [’кrʌʃ] давить, мять, уничтожать, толочь

to pulverize ['pʌlvәraiz] растирать в порошок, распылять

to blow [blou] (blew, blown) дуть

to attain [ә'tein] достигать

complete [kәm'pli:t] полный, законченный, совершенный

combustion [кәm’bʌstʃ (ә)n] сгорание

exhauster [lg'zә:stә] вытяжной вентилятор, пылесос

to drive [draiv] (drove, driven) управлять, править

to supervise ['sju:pәvaiz] смотреть, наблюдать

forced [fo:st] принудительный

forced air fans принудительная воздушная вентиляция

to feed (fed, fed) кормить, подавать

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