Контрольное задание № 2
ВАРИАНТ № 1
I. Напишите цифрами следующие числительные и действия c ними:
1.1. three quarters _________________________________________
1.2. five and two thirds _____________________________________
1.3. nought point nought four _________________________________0.04
1.4. thirty seven point one nought five __________________________
1.5. eight by two equals four __________________________________
1.6. six multiplied by two is twelve______________________________
1.7. four from ten is six ______________________________________
1.8. ten to the seventh power __________________________________
1.9. the square root of ax _____________________________________
1.10. nine degrees below zero___________________________________
II. Выпишите предложения, содержащие причастия I и II в функции обстоятельства. Переведите предложения на русский язык.
2.1. The machine tool was mounted on a special work bench.
2.2. Going into chemical combinations elements entirely change their properties.
2.3. Cooper is of great value, being a good conductor of electricity.
2.4. We are making an interesting experiment now.
2.5. Unless tasted the machine must not be put into operation.
2.6. They were analyzing the results of their research from 4 to 6 o’clock yesterday.
2.7. When heated the polymer changed its properties completely.
III. Прочитайте и устно переведите текст, затем выполните тест по тексту:
Applications of Automation and Robotics in Industry
Manufacturing is one of the most important application area for automation technology. There are several types of automation in manufacturing.
1. Fixed automation, sometimes called «hard automation» refers to automated machines in which the equipment configuration allows fixed sequence of processing operations. These machines are programmed by their design to make only certain processing operations. They are not easily changed over from one product style to another. This form of automation needs high initial investments and high production rates. That is why it is suitable for products that are made in large volumes. Examples of fixed automation are machining transfer lines found in the automobile industry, automatic assembly machines and certain chemical processes.
2. Programmable automation is a form of automation for producing products in large quantities, ranging from several dozen to several thousand units at a time. For each new product the production equipment must be reprogrammed and changed over. This reprogramming and changeover take a period of non-productive time. Production rates in programmable automation are generally lower than in fixed automation A numerical-control machine-tool is a good example of programmable automation. The program is coded in computer memory for each different product style and the machine-tool is controlled by the computer program.
3. Flexible automation is a kind of programmable automation. Programmable automation requires time to reprogram and change over the production equipment for each series of new product. This is lost production time, which is expensive. In flexible automation the number of products is limited so that the changeover of the equip¬ment can be done very quickly and automatically. The reprogramming of the equipment in flexible automation is done at a computer terminal without using the pro¬duction equipment itself. Flexible automation allows a mixture of different products to be produced one right after another.
Пояснения к тексту:
Rate – скорость, темп
Assembly machines – сборочные машины
Changeover – переход, переналадка
ТЕСТ ПО ТЕКСТУ
Выберите правильный ответ на вопросы по содержанию текста и переведите предложения на русский язык:
3.1. What is one of the limitations of hard automation?
a) The changeover of the equipment can be done very quickly.
b) The changeover of the equipment cannot be done very quickly.
c) The changeover of the equipment cannot be done at all.