1. Read the following text and do the tasks given below.

A humidistat is a mechanism that works in conjunction with space conditioning machines to regulate a room's humidity level. They are commonly used with air conditioners, humidifiers, and dehumidifiers, gauging the humidity in a given space. When used on a device with a thermostat, such as an air conditioner, a humidistat allows the unit to turn on and off when a predetermined level of humidity is present.

Humidistats ensure a room maintains a comfortable temperature and helps prevent mildew from forming. Certain rooms in a home are more sensitive to humidity and are more prone to the development of mildew. A bathroom humidistat attaches to the ventilation fan in the room, automatically cycling off once the humidity level has dropped. The upper stories of a dwelling also experience high degrees of humidity. An attic humidistat works with a fan to keep temperatures manageable and conditions inconducive to the growth of mildew.

There are many humidifiers and dehumidifiers that come equipped with a built-in humidistat. The user can program the device to read moisture levels in the air, setting it to function or switch off as humidity rises or falls. A dehumidifier or humidifier humidistat may be located directly on the machine or accessed through a remote control.

Thermostats are also available with incorporated humidistats. A thermostat humidistat allows users to set the temperature levels within a space while ensuring humidity remains at a minimum. Degrees of humidity can be adjusted to suit the user's personal preferences. The typical programmable range for humidity levels is 15%-45% relative humidity (RH). If the level in a room exceeds the desired amount, the humidistat will alert the thermostat to automatically turn on the air conditioner.

A digital humidistat is easy to read and adjust. It displays the temperature of the room, the level of humidity, and often will show the target temperature and level. Most models are simple to program with the preferred information, and many also include security settings that guarantee the unit runs properly even if the humidistat is tampered with.

Since humidity levels vary in different geographic areas, it is important to consult the humidistat manufacturer's guidelines to establish the optimal setting for a given locale. If the device is set improperly, it could cycle on when it is not needed, wasting energy and escalating utility costs. Most manufacturers include with each product a listing of ideal humidistat settings for a wide variety of locations.

2.Choose the contextual meanings of the words written in bold in the text above.

1. conjunction

a) соединение	c) объединение
b) связь	d) сцепление

2. ensure

a) убеждаться	c) обеспечивать
b) застраховаться	d) обезопасить

3. prone

a) предрасположенный	c) склонный
b) проблемный	d) опасный

4. experience

a) познавать	c) производить
b) знать	d) практиковать

5. read

a) читать	c) считывать
b) разгадывать	d) отсчитывать

6. alert

a) предупреждать	c) настораживать
b) приводить в состояние	d) тревожить

7. display

a) воспроизводить	c) изображать
b) отображать	d) выделять

8. improperly

a) неуместно	c) неприлично
b) неподходяще	d) неправильно

3.Translate in written form the paragraph given in bold.

4.Choose the best abstract for the text.

1) A humidistat is a mechanism connected to air conditioners, humidifiers, and dehumidifiers to gauge the humidity in a given space

2) A humidistat is a mechanism to display the temperature of the room, the level of humidity and the target temperature and level.

3) A humidistat is a mechanism to establish the optimal setting for a given locale.

Part 2.

5. Choose the best option.

1)Relative humidification is expressed as … .

a) a ratio between the amount of moisture in the air and the moisture the air could hold before condensation

b) grams of moisture per cubic volume of air

c) liguid atomizers distributing moisture to the air

2) Humidity control systems are often integrated with … .

a) air-conditioning systems

b) heating systems

c) cooling systems

3) DB temperature of the air is … .

a) dry blow

b) dry bulb

c) desert blower

4) An evaporative cooler is … device.

a) cooling

b) heating

c) humidifying

5) The evaporative cooler is commonly used in … .

a) dry and hot climates

b) hot and high humidity climates

6) A … is costly but it can help you monitor the air you breathe.

a) hygrometer

b) psychrometer

c) humidistat

7) There are basically … types of humidification processes.

a) two

b) three

c) four

8) some humidifiers have a built-in … to indicate the moisture level in the room.

a) humidistat

b) hygrometer

c) psychrometer