1 вариант
1. We prevent wood from fire when using ...
1. paints 2. tree 3. temperature 4. mixture
2. There are ... groups of fireproof substances.
1. two 2. three 3. four 4. five
3. The glaze on the wood prevents access of ... to the wood.
1. nitrogen 2. hydrogen 3. chemicals 4. oxygen
4. The disadvantage of fire-retardant paints is that they cannot be applied to timber painted with an ....
1. charcoal 2. heating 3. oil paint 4. layer
5. Paints are ... layer.
1. decomposing 2. reflecting 3. melting 4. corrosion
6. There is ... water in freshly cut wood.
1. little 2. much 3. few 4. no
7. Fungi and insects attack logs mostly during ... weather.
1. cold 2. frosty 3. snowy 4. warm
8. Cold coatings are ...
1. liquid 2. solid 3. pitch 4. paraffin
9. Air - drying and ... are popular ways of seasoning timber.
1. kiln - drying 2. water - drying 3. soil - drying 4. pond - drying
10. Timber dries quicker during spring and ... months.
1. winter 2. autumn 3. summer 4. spring
11. In ... climate kiln - drying is much cheaper.
1. warm 2. stuffy 3. humid 4. hot
12. ... boards dry more quickly.
1. thin 2. wide 3. thick 4. plump
13. ... have a longer history of use.
1. progressive kilns 2. train kilns 3. design kilns 4. compartment kilns
14. The most common defect of storing wood is ...
1. spraying 2. splitting 3. coating 4. water resistance
15. Wood treated with chemicals becomes more ...
1. durable 2. chemical 3. limited 4. possible
2 вариант
1. Wood treated with chemicals becomes more ...
1. limited 2. durable 3. chemical 4. possible
2. There are ... groups of fireproof substances.
1. two 2. four 3. five 4. three
3. Cold coatings are ...
1. liquid 2. paraffin 3. solid 4. pitch
4. Fungi and insects attack logs mostly during ... weather.
1. frosty 2. cold 3. warm 4. snowy
5. Paints are ... layer.
1. decomposing 2. melting 3. corrosion 4. reflecting
6. ... have a longer history of use.
1. progressive kilns 2. design kilns 3. compartment kilns 4. train kilns
7. The disadvantage of fire-retardant paints is that they cannot be applied to timber painted with an ....
1. heating 2. oil paint 3. charcoal 4. layer
8. The glaze on the wood prevents access of ... to the wood.
1. chemicals 2. oxygen 3. nitrogen 4. hydrogen
9. Air - drying and ... are popular ways of seasoning timber.
1. soil - drying 2. kiln - drying 3. water - drying 4. pond - drying
10. Timber dries quicker during spring and ... months.
1. spring 2. autumn 3. winter 4. summer
11. In ... climate kiln - drying is much cheaper.
1. stuffy 2. warm 3. humid 4. hot
12. ... boards dry more quickly.
1. thick 2. wide 3. plump 4. thin
13. There is ... water in freshly cut wood.
1. much 2. no 3. little 4. few
14. The most common defect of storing wood is ...
1. splitting 2. coating 3. water resistance 4. spraying
15. We prevent wood from fire when using ...
1. temperature 2. mixture 3. paints 4. tree