Экзаменационная работа (2 семестр)
контрольные работы, английский язык
Год сдачи: 2012
Стоимость: 450 руб.
Задание 1.Выберите правильную форму глагола.
1. No city has cables ___ directly.
b. are laying
2. Computers ____ to perform series of mathematical operations.
a. are used
b. are using
c. have used
3. __ power losses, thick wires should be used.
b. To reduce
c. Having reduced
4. For information _____, it must be attached to a radio – frequency carrier wave.
a. to be transmitted
b. will be transmitted
5. Various installations ____ to transform electric power into mechanical and heat power.
a. have been used
b. are using
c. are being used
6. The experiment ____ to be continued .
b. is reporting
c. is reported
7. A computer ____ to possess four main parts.
a. has been known
b. is known
8. The atmosphere ____ to extend several hundred kilometers above the Earth.
b. has been proved
c. is proved
9. Transistor batteries ___ to be used in systems that have to operate on weak signals, for example, in ultra-long-distance space communications.
b. have been expected
c. were expected
10. Materials __ very high resistance are called insulators.
c. are having
11. A cable conduit is an arrangement ____ in the ground.
b. is built
12. ___ calculations, a computer displays results.
a. Having performed
13. A faulty cable___ between two manholes is to be replaced.
a. having run
14. ____ under different conditions, the devices were put to use.
a. having been tested
15. The device ____ faulty, one cannot rely on its readings.
c. to be
16. RAM stands for Random Access Memory, information ___ into and out of any single byte of memory.
a. being transferred
c. have transferred
17. Other factors ____ constant, the current is known to be directly proportional to conductivity.
c. having been
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