Тест control yourself 1. high cost and low fire-resistance are classified as a.advantages of construction materials. b.disadvantages of construction materials 2. cement, brick, and concrete may serve as examples of a.natural materials b.artificial materials 3. durability, strength, and high fire-resistance are properties a.of stone b.of wood 4. iron, steel, and their alloys belong to a.ferrous metals b.non-ferrous metals 5. one of the advantages of cast iron is a.its cheapness b.its high cost 6. aluminum is a.a good conductor of electricity b.a poor conductor of electricity 7. wood is considered to be a.the only naturally renewable material b.one of the naturally renewable materials 8. in cut wood water content is a.constantly increasing b.constantly decreasing 9. steel, brick, and concrete a.differ in their properties b.have the same structural properties 10. the drier is the cut wood a.the lower is its strength b.the greater is its strength 11. large structural members are produced by glueing together a.large strips of wood b.small strips of wood 12. wood panels are a.much easier to install than boards b.much more difficult to install than boards 13. plywood panels are made up of a.thin wooden veneers glued together b.thick wooden veneers glued together 14. timber is material that is a.artificially renewed b.naturally renewed 15. removal of moisture from timber a.increases its strength, hardness, and workability b.decreases its strength, hardness, and workability 16. birch and oak belong to a.hardwoods b.softwoods 17. hardwoods are widely used a.for sanitary purposes b.for decorative purposes 18. in ancient egypt bricks were produced a.by burning b.by drying in the sun 19. russia is a.poor in raw materials b.extremely rich in raw materials 20. overburned brick a.should not be used in construction b.can be used for construction purposes 21. underburned brick is a.highly porous b.glass hard 22. bricks are produced of a.sand and water b.mortar and burned clay 23. many/few growing forests serve for producing a.much timber b.little timber 24. the properties of building materials a are of no importance for building purposes b.should be taken into account 25. ceramic tiles are a.modern products b.ancient products 26. world's modern atmosphere is a.clean and fresh b.highly polluted by chemical waste 27. the colour of ceramic tiles a.does not depend on the colour of clay b.depends on the colour of the clay they are made up of 28. ceramic tiles are applied by means of a.glue b.some adhesive substance 29. they are applied with an extremely a.thin mortar joint b.thick mortar joint 30. the properties of terracotta are a.different from the properties of brick b.similar to the properties of brick

1. high cost and low fire-resistance are classified as disadvantages of construction materials. This means that when construction materials have a high cost and low resistance to fire, it is considered a disadvantage because it makes the materials more expensive and less safe.
2. cement, brick, and concrete may serve as examples of artificial materials. Cement, brick, and concrete are all man-made materials that are used in construction.
3. durability, strength, and high fire-resistance are properties of stone. Stone is known for its durability, strength, and ability to resist fire.
4. iron, steel, and their alloys belong to ferrous metals. Iron, steel, and their alloys are all examples of metals that contain iron.
5. one of the advantages of cast iron is its cheapness. Cast iron is known for being relatively inexpensive compared to other construction materials.
6. aluminum is a good conductor of electricity. Aluminum is known for its ability to conduct electricity, which makes it useful in many electrical applications.
7. wood is considered to be one of the naturally renewable materials. Wood is a natural material that comes from trees, which can be replanted and regrown.
8. in cut wood water content is constantly decreasing. When wood is cut, it begins to dry out and its water content gradually decreases over time.
9. steel, brick, and concrete differ in their properties. Steel, brick, and concrete all have unique properties that make them suitable for different construction purposes.
10. the drier the cut wood, the greater its strength. As wood dries out, it becomes stronger because the removal of moisture increases its density and stability.
11. large structural members are produced by gluing together large strips of wood. To create large structural members, strips of wood are glued together to increase their size and strength.
12. wood panels are much easier to install than boards. Wood panels are pre-fabricated and come in larger sizes, making them easier to install compared to individual boards.
13. plywood panels are made up of thin wooden veneers glued together. Plywood is created by layering thin sheets of wood veneers and bonding them together with glue.
14. timber is a naturally renewed material. Timber refers to wood that comes from trees, which can be replanted and regrown, making it a renewable resource.
15. removal of moisture from timber increases its strength, hardness, and workability. When moisture is removed from timber, it becomes denser and stronger, making it more suitable for construction purposes.
16. birch and oak belong to the hardwoods. Birch and oak are both examples of hardwoods, which are known for their density and durability.
17. hardwoods are widely used for decorative purposes. Hardwoods have an attractive appearance and are often used for decorative purposes in construction and interior design.
18. in ancient Egypt, bricks were produced by drying in the sun. In ancient Egypt, bricks were made by forming clay into molds and drying them in the sun until they hardened.
19. Russia is extremely rich in raw materials. Russia is known for its abundance of natural resources, including raw materials used in construction and other industries.
20. overburned brick should not be used in construction. Overburned brick can become brittle and weak, making it unsuitable for use in construction.
21. underburned brick is highly porous. Underburned brick is not fully hardened and can have large pores and a porous structure.
22. bricks are produced of mortar and burned clay. Bricks are made by combining a mixture of sand, water, and burned clay, then shaping and baking them in a kiln.
23. many growing forests serve for producing much timber. Many forests are used for timber production, resulting in a large quantity of wood being harvested.
24. the properties of building materials should be taken into account for building purposes. When selecting building materials, it is important to consider their properties to ensure they meet the specific requirements of the project.
25. ceramic tiles are modern products. Ceramic tiles are a type of material used in modern construction and interior design.
26. the world's modern atmosphere is highly polluted by chemical waste. The modern atmosphere is often contaminated by pollution from various sources, including chemical waste.
27. the color of ceramic tiles depends on the color of the clay they are made up of. The color of ceramic tiles is determined by the color of the clay used to make them, which can vary.
28. ceramic tiles are applied by means of some adhesive substance. Ceramic tiles are installed using an adhesive substance, such as tile adhesive or mortar.
29. they are applied with an extremely thin mortar joint. When installing ceramic tiles, a very thin layer of mortar is used to ensure a flush and level installation.
30. the properties of terracotta are different from the properties of brick. Terracotta and brick are similar materials, but they have different properties and characteristics for various construction applications.