1. Small domestic buildings, offices, hotels and other places...
2. The fittings comprise..
3. With regard to the tobin tube care should be taken...
4. This type of ventilator is used...
5. Natural ventilation has the advantage...
5. Answer the following questions.
1. How are small domestic buildings ventilated?
2. What does it depend upon?
3. What are the fittings used for?
4. What do they comprise?
5. Why should care be taken with regard to the tobin tube?
6. Where is this type of ventilator used mostly?
7. What is the advantage of natural ventilation?
Supply questions to these sentences.
1. The usual height of 5 ft. to 6 ft. is convenient for this misuse, particularly as few people realize their real purpose.
2. The fittings used are too well known to set down in detail, but briefly they comprise: windows, lantern lights with sides to open, fanlights, hopper sashes, revolving cowls, draught window boards, valves and air vents, "hit and miss" ventilators, tobin tube inlets, fireplaces, doors, electric fans, etc.
3. It is not unusual for careless people to deposit cigarette-ends, waste paper, etc., into the open ends of the ventilator.
7. Find the Ukrainian equivalents of the given words.
1.domestic building .
2. floor area b.
3.suitable inlets and outlets c.
4.the fittings d. ,
5.to comprise .
6.with regard to f.
7.a receptacle g.
8.full of filth h.
9.to deposit cigarette-end .
10.waste paper j. ,
11.to misuse k.
12.public building 1.
13.church hall m. ,
14.efficient n.
15.periodic attention .
16.to install .
17.to provide q. ,
18.skill r.
Read and translate the dialogue.
- How are small domestic buildings ventilated?
- They are ventilated by natural means.
- What does it depend on?
- It ail depends largely upon the provision of suitable inlets and outlets.
- What fittings are used there?
- Briefly they comprise: windows, lantern lights with sides to open, fanlights, hopper sashes, revolving cowls, draught window' boards, valves and air vents, "hit and miss" ventilators, tobin tube inlets, fireplaces, doors, electric fans, etc.
- Should we take care of the tobin tube?
- Yes, we should. With regard to the tobin tube care should be taken to see that this fitting receives attention.
- What can happen if we don't do it?
- Otherwise after a number of years the receptacle may be found full of filth owing to misuse.
- Where is this type of ventilator used mostly?
- It is used mostly in public buildings, church halls, billiard halls, etc., and can be quite efficient if given periodic attention.
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- I see that natural ventilation is very advantageous for such buildings, isn't it?
- Yes, it is. It has the advantage of being cheap to install.
Unit 9
ARTIFICIAL AND VACUUM VENTILATION
1. Memorize the following words and expressions:
Ø to tabulate-
Ø to extract -,
Ø to induce ,
Ø to maintain ,
Ø extraction fan - /
Ø rotary
Ø a duct- , ,
Ø easy bend ,
Ø right-angled bends-
Ø to impair- ,
Ø friction-
Ø to utilize
Read the text. Find the difference between these two systems of ventilation.
