voronvoron2002
09.06.2020 00:14

За час нужно сделать

Test

I. Choose the right answer.

1. … are important in industry because they can be easily deformed into useful shapes.

a) grains b) metals

c) tubes d) billet

2. In back-extrusion the … is placed in the bottom of a hole and a loosely fitting ram is pushed against it.

a) orifice b) imprint

c) workpiece d) rolling

3. … is the shaping of a piece of metal by pushing with open or closed dies.

a) drawing b) forging

c) rolling d) welding

4. Open-die forging is usually done by … a part between two flat faces.

a) hammering b) sheet metal forming

c) drawing d) rolling

5. Nowadays … is used instead of bolting and riveting in the construction of many structures, including bridges, buildings and ships.

a) sheet metal forming b) rolling

c) welding d) hammering

6. Gas welding has the advantage of using … that is portable and does not require an electric power source.

a) current b) pressure

c) equipment d) wire

7. The heat from the arc formed between the … and the metal melts the edges of the metal.

a) liquid b) carbon

c) filler d) electrode

8. Metal for the weld may be added by placing a bare … in the arc or the point of the weld.

a) wire b) electrode

c) carbon d) current

9. A small portion of material is removed at each pass of the … .

a) screw b) cutter

c) wheel d) thread

10. Other machining methods include … using ultrasound and cutting by mean of laser beam.

a) rolling b) drilling

c) welding c) drawing

Нажмите на рекламу ниже и сразу увидите ответ
Популярные вопросы:
Ответ:
Rostik666
01.05.2023 19:08

in my understanding, a "teacher" is a person who imparts his experience and knowledge. however, if to consider this concept more widely, it becomes clear that it consists not only in training of certain knowledge, but also in education of the pupils. the teacher must always be an example. that is why i believe that not everyone can become a teacher, it is not given to everyone.the work of the teacher does not end when he leaves the school building after school, he must always improve and grow, the only way he can cultivate high moral qualities and teach the same to children. of course, the first our teacher becomes mother, she teaches us around the, that knows itself. soon it becomes not enough for us and to the aid to mother tutors in kindergarten come, and later-school teachers. even other children to some extent often become our teachers. we watch how they behave, how they talk, adopt their habits. therefore, in life it is very important to choose your friends.a good teacher, who managed to find an approach to the student, to put something in his soul, can remain in his memory for a lifetime. his main task is to help the little man to become a person, to adapt in society and to find his place. he should make every effort to help the student's talents develop and grow, to direct his aspirations in the right direction and show what to strive for.the importance of the teacher's profession is difficult to overestimate, because if he himself does not have life guidelines, it can cause serious harm to the formation of the personality of students. choosing for themselves this profession, everyone should remember this and think three times whether he is ready to take on this responsibility and whether it can carry with honor through life.     personally, i was lucky with the teacher – this is our class teacher. he is a wise and just man and in addition to the knowledge that he puts into us, we all get support and understanding from him.

вот ! пиши на здоровье! удачи!

0,0(0 оценок)
Ответ:
myzroman
24.08.2020 11:47
Music is listened by me - present simple
Music was listened by me - past simple
Music will be listened by me - future simple
Music is being listened by me - presetn cont.
Music was being listened by me - past con.
Music will be being listened by me - future cont.  кстати, future cont. passive не употребляется в английском языке,из-за того,что такая большая грамматическая конструкция, так что по идее вам не должны были давать это время для склонения.
Music has been listened by me - present perfect
Music had been listened by me - past perfect
Music will have been listened by me - future perfect 
0,0(0 оценок)
Полный доступ
Позволит учиться лучше и быстрее. Неограниченный доступ к базе и ответам от экспертов и ai-bota Оформи подписку
logo
Начни делиться знаниями
Вход Регистрация
Что ты хочешь узнать?
Спроси ai-бота