Вопрос № 800602 - Английский язык

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The fundamental purpose of a door is to provide access into or out of a building. Doors also serve for providing access into or out of various compartments of a building. Doors also have the following functions. They provide security, weather resistance, fire-resistance, thermal insulation, sound insulation. As to exterior doors, they must be well-designed and properly constructed. They must not leak air, wind, heat and water.
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The fundamental purpose of a door is …

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The fundamental purpose of a door is to provide access into or out of a building. Doors also serve for providing access into or out of various compartments of a building.
Doors also have the following functions. They provide:
1. Security;
2. Weather resistance;
3. Fire-resistance;
4. Thermal insulation;
5. Sound insulation.
As to exterior doors, they must be well-designed and properly constructed. They must not leak air, wind, heat and water.
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The fundamental purpose of a door is …

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Cladding is a material used as the exterior wall enclosure of a building. 1 _______. Its major purpose is to separate the indoor environment of a building from the outdoors.
2 _______.Cladding must prevent the entry of water, snow and ice into a building. Water on the face of a building is known to be driven by wind not only in a downward direction, but in every other direction, even upward.
3 _______.Water problems, that is keeping water out, are especially great on very tall buildings. These buildings rise to height where wind velocities are extremely high.
4 _______. It should be taken into account that on tall buildings water tends to penetrate the smallest crack or hole and enter the building.

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In offices and computer facilities, floors are frequently used for the distribution of electrical and communication wiring.
 In computer rooms and offices supplied with a large number of electronic machines raised access flooring is frequently used. 1 _______. It consists of small individually removable panels. 2 _______. This type of flooring provides unlimited capacity for wiring, piping, and ductwork. 3 _______. Any changes in underfloor systems can be made quite easily. 4 _______..

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Mixing small wires with enlarged ends into concrete increases the material’s strength and hardness, according to research performed at the National laboratory, Los Alamos, New Mexico.
Researchers found that when bone-shaped wires 25 mm long were added in amounts equal to just 1 percent of the concrete’s volume, the strength increased by as much as 84 percent. The concrete was also 93 times harder.
Straight steel wires have been used to reinforce concrete for several decades. But wires of this kind bond only weakly with the concrete at their ends. Besides, it turned out that straight wires can also snap under high stress without much bending or stretching. In stress tests concrete containing the wires with bulbous ends became even stronger after the first cracks appeared as the load was transferred to the wires.
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Straight steel wires have been used _______.

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The plant where high-density polyethylene pipe is being manufactured needed repairs to its pipe storage area. The repairs became necessary because the stone layer did not shed water and it caused cracks. The cracking of storage pavement area made it necessary to stabilize the site.
So it became necessary for engineers to look for a way that would be economical and would not require shutting down the operating area of the plant. After testing a number of alternatives, it was decided to use polypropylene fibres for the purpose. It was found out that when being mixed with soil the fibres produce the necessary stability. The way the engineers proposed turned out to be economical and quite successful.
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It was found out that _______.