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Вопрос № 911484 - Английский язык

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Where are steels of low carbon content used?
The most important metal in industry is iron and its alloy – steel. Steel is an alloy of iron and carbon. It is strong but corrodes easily through rusting, although stainless and other special steels resist corrosion. The amount of carbon in steel influences its properties considerably. Steels of low carbon content (mild steels) are quite ductile and are used in the manufacture of sheet iron, wire and pipes. Medium-carbon steels containing from 0.2 to 0.4 per cent carbon are tougher and stronger and are used as structural steels. Both mild and medium-carbon steels are suitable for forging and welding. High-carbon steels contain from 0.4 to 1.5 per cent carbon, are hard and brittle and are used in cutting tools, surgical instruments, razor blades and springs. Tool steel also called silver steel, contains about 1 per cent carbon and it is strengthened and toughened by quenching and tempering.
Варианты ответов
  • They are used as structural steels
  • They are used in cutting tools, surgical instruments, razor blades and springs
  • They are used in the manufacture of sheet iron, wire and pipes
  • They are used for forging and welding
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 16:10
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 16:10

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Вопрос № 933224

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The most important metal in industry is iron and its alloy – steel. 1_______. It is strong but corrodes easily through rusting, although stainless and other special steels resist corrosion. 2_______. Steels of low carbon content (mild steels) are quite ductile and are used in the manufacture of sheet iron, wire and pipes. Medium-carbon steels containing from 0.2 to 0.4 per cent carbon are tougher and stronger and are used as structural steels. 3_______. High-carbon steels contain from 0.4 to 1.5 per cent carbon, are hard and brittle and are used in cutting tools,
surgical instruments, razor blades and springs. 4_______.
Steel is an alloy of iron and carbon
The amount of carbon in steel influences its properties considerably
Both mild and medium-carbon steels are suitable for forging and welding
Tool steel also called silver steel, contains about 1 per cent carbon and it is strengthened and toughened by quenching and tempering

Вопрос № 1072320

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What is steel as a construction material? Steel may be classified as iron with the controlled amount of carbon. The amount of carbon in steel is generally less than 1.7 per cent. Ordinary structural steel should contain less than three tenth of one per cent carbon. This kind of steel also contains small amounts of phosphorus, sulfur, oxygen, nitrogen and silicon. Like iron and its alloys, steel belongs to ferrous metals. It is hard substance. Accordingly, it can be pulled, forged and melted. Generally, steel, this strong metal, like other metals, is a good conductor of electricity. Alloyed steel and stainless steel are corrosion-resistant kinds of steel.
Закончите предложение:
Steel belongs to …
non-ferrous metals
plastic materials
plywood siding materials
ferrous metals

Другие вопросы по предмету Английский язык

Вопрос № 911485

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Why is wood used for making boxes?
Wood is used for making shelves because it is soft and therefore can be cut easily. It can also be used for making boxes because you can hammer nails into them and join them together. And it can be used in fires, because it is combustible.
Because it can be cut easily
Because it is soft
Because it is combustible
Because you can hammer nails into them and join them together

Вопрос № 911486

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Where did Fred carry the ladder?
Fred had an accident yesterday – he cut his head badly. He’s in hospital now. What happened was this. He took the metal ladder from the store room and carried it into the machine shop. Then he put it onto some boxes next to the main door of the workshop (which was closed, but not locked), and climbed the ladder. While he was repairing the electric cable, someone opened the door and walked into the workshop. The door hit the ladder, and the ladder fell over. Fred fell from the ladder onto the floor. He landed on his feet, but there was some oil on the floor and he slipped, and cut his head on a drilling table.
He carried it into hospital
He carried it into the store room
He carried it to the drilling table
He carried it into the machine shop

Вопрос № 911487

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A solid body has a definite form, and tends to keep it; a liquid body must be kept in a vessel and adapts itself to the shape of that vessel, but so as to keep its upper surface horizontal, it tends, moreover, to flow from a higher to lower level. A gas, or a gaseous body, cannot be kept in an open vessel, but must be kept in a vessel closed in all sides; it always fills the vessel completely.
состояние
придавать форму
образец
форма

Вопрос № 911488

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Safety Engineering
This field of engineering has its subject the prevention of accidents. Safety engineers develop methods and procedures to safeguard workers of hazardous occupations. They also assist in designing machinery, factories, ships, and roads, suggesting alternations and improvements to reduce accidents.
случайности
складки
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несчастные случаи
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