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2. Complete the sentences using the correct variant:

1. The main components of electric circuits are

a) loads and wires.

b) power sources, load and wires.

2. Power sources are used

a) to produce electric energy.

b) to deliver it to the loads.

3. Electric conductors are used

a) to connect the circuit elements.

b) to deliver electric power.

4. Protection devices are utilized

a) in some circuits.

b) in any circuit.

5. A switch is utilized

a) in some circuits.

b) in any circuit.

5. Answer these questions:

1. What are the main components of an electric circuit?

2. What is the function of an electric source?

3. What is the function of a load?

4. What is the function of wire conductors?

5. What other devices are utilized in a circuit?

6. Say a few words about your electrical engineering laboratory. Say what power sources and what loads are utilized there. Have a talk with your groupmate about their types and their operation.

Unit Twenty-Five [25]

1. A) Cover the right column and read the English words. Translate them into Russian and check your translation.

b) Cover the left column and translate the Russian words back into English.

efficiency

[ɪˈfɪʃənsi]

отдача, эффективность

ignorance

незнание, неведение

dependence

зависимость

cost

стоимость

loss

потеря

length

длина

to ignore

не принимать во внимание

to depend (on)

зависеть (от)

to exceed

[ɪkˈsiːd]

превышать

long

длинный

exceedingly

чрезвычайно, очень

per cent

процент

2. Read the words and put down their Russian equivalents:

[laɪn]

line

___________________________

[ˈsteɪʃən]

station

___________________________

[ˌendʒɪˈnɪə]

engineer

___________________________

[ˌendʒɪˈnɪərɪŋ]

engineering

___________________________

3. Put down the nouns corresponding to these verbs. Follow the model.

Model: to act  action

to ignore 

_________________

to produce 

___________________

to depend 

_________________

to use 

___________________

to cost 

_________________

to lose 

___________________

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