- •Тесты для заочников эни на IV семестр Unit 1
- •Vocabulary
- •I. Match English equivalents to the Russian words and word combinations
- •II. Form the word combinations
- •III. Read the text and be ready to answer the questions My Speciality
- •IV. Answer the questions
- •V. Find the suitable English sentences for the Russian ones
- •Vocabulary
- •I. Arrange these synonyms in pairs
- •II. Match English equivalents to the Russian words and word combinations
- •III. Read the text and be ready to answer the questions Generators
- •IV. Answer the questions
- •V. Find the suitable English sentences for the Russian ones
- •Vocabulary
- •I. Fill in the blanks with suitable words and word combinations given below
- •II. Form sentences combining suitable parts given in columns I and II
- •II. Match English equivalents to the Russian words and word combinations
- •III. Read the text and be ready to answer the questions The Transformer
- •IV. Answer the questions
- •V. Find the suitable English sentences for the Russian ones
IV. Answer the questions
1. What is a transformer?
2. Has the transformer moving parts?
3. What parts does the transformer consist of?
4. What is a primary winding?
5. What do we call a secondary winding?
6. What is the core?
7. What transformer is used to step-up the voltage?
8. What is the step-down transformer used for?
9. Where are large transformers used?
10. Are transformers used in radio and television sets?
V. Find the suitable English sentences for the Russian ones
1. Трансформатор – это устройство для изменения электрического тока из одного напряжения в другое.
2. Простой трансформатор – это вид индукционной катушки
3. Основные части трансформатора – это две обмотки и железный сердечник.
4. Первичная обмотка соединяется с источником снабжения.
5. Вторичная обмотка соединена с нагрузкой.
6. Сердечник состоит из тонких пластин стали.
7. Большие трансформаторы используются для передачи энергии на большие расстояния.
a) Тhе primary winding is connected to the source of supply.
b) Large transformers are used in lоng-distance transmission lines.
c) The transformer is a device for changing the electric current from one voltage to another.
d) The principal parts of a transformer are two coils and an iron core.
e) The core consists of thin sheets of steel.
f) The secondary winding is connected to the load.
g) A simple transformer is a kind of induction coil.
Ключи:
I |
1 – e |
2 – d |
3 – f |
4 – c |
5 – b |
6 – a |
7 – g |
II |
1 – d |
2 – c |
3 – e |
4 – b |
5 – f |
6 – a |
|
V |
1 – c |
2 – g |
3 – d |
4 – a |
5 – f |
6 – e |
7 – b |