Вопрос № 284340 - Английский язык

Прочитайте текст
The quality of concrete is known to depend on the properties of materials it consists of. The amount of constructing materials is also of great importance. Among the kinds of concrete used in modern construction there are plain concrete and reinforced, or ferro-concrete. The usage of plain concrete is practically limitless. As to ferro-concrete, it is mostly used for construction of foundations, columns, girders and beams. This kind of concrete is also rather popular for constructing bridges, dams and dock walls.
Ответьте на вопрос
The usage of what construction material is practically limitless?

Прочитайте текст и заполните пропуски подходящими по смыслу словами.
The quality of 1_______ is known to depend on the properties of materials it consists of. The amount of constructing materials is also of great importance. Among the kinds of concrete used in 2_______ construction there are plain concrete and reinforced, or ferro-concrete. The usage of plain concrete is practically 3_______. As to ferro-concrete, it is mostly used for construction of foundations, 4_______, girders and beams. This kind of concrete is also rather popular for constructing bridges, dams and dock walls.

Прочитайте текст
There are some basic types of fuel for motor vehicles. There is diesel fuel, there is petrol and there is fuel mixture.
A lot of buses have diesel engines but not only a few cars have such engines. There are also a few cars with two-stroke engines but most cars have four-stroke engines.
Most lorries have diesel engines. There are not many lorries with four-stroke petrol engines but there are lorries with two stroke engines.
Ответьте на вопрос
What engines do a lot of buses have?

Прочитайте текст
Alfred Nobel was a Swedish chemist who lived from 1833 to 1896. Alfred and his brother made explosives, but in 1864 there was an accident in the laboratory and Alfred’s brother was killed. Alfred then decided to spend his life truing to make explosives safer to use.
One of the strongest explosives at that time was nitroglycerine. This explosive, which looks like oily water, is very dangerous to use or even to carry. Nobel wanted to study nitroglycerine so he could find a way to make it safer. Nobel had an idea of taking nitroglycerine out on a boat in the middle of a lake and working with it there.
When Nobel wanted to take the nitroglycerine he was working with from one place to another, he put it into small boxes. Then he put the small boxes into a larger box made of clay. One day, when he opened the large clay box, he found that nitroglycerine was coming out of one of the small boxes. To his surprise, the large clay box was still dry. This gave him the idea of mixing clay with nitroglycerine. The clay would take the oil out of nitroglycerine and make it safer. He called this explosive ‘dynamite’.
Ответьте на вопрос
Why did Alfred decide to spend his life trying to make explosives safer to use?

Прочитайте текст
One day, Nicola Tesla had a vision of a whole new type of electric power system. Tesla went to work as an engineer for the Continental Edison Company. While he was there, he built the first model of his motor. But the people at the company weren’t interested in it. Tesla decided to go to the United States to talk to the great inventor Thomas Edison.
Ответьте на вопрос
Why did Tesla decide to go to the United States?

Прочитайте текст
The first atomic ships were made in our country and abroad. They are: the atomic ice-breaker Lenin and the nuclear merchant ship Savannah.
The ice-breaker Lenin has a displacement of 16,000 tons and can make 18 knots. It is capable of going through two meters of ice. The Lenin has three nuclear reactors developing 44,000 h.p. and can stay at the sea for more than a year without refueling.  
Ответьте на вопрос
How long can the Lenin stay at the sea without refueling?