L1

Question 1

1. A device for determining the relative humidity:

Answer 1

c) hygrometer.

Question 2

2. In which layer of the atmosphere is a person’s life?

Answer 2

a) troposphere;

Question 3

3. The cause of altitude sickness is:

Answer 3

c) decrease of oxygen partial pressure.

Question 4

4. The concept of climate includes the following features:

Answer 4

b) air velocity, air temperature, air humidity, heat radiation;

Question 5

5. Under the low atmospheric pressure conditions the follow-ing develops:

Answer 5

a) decompression sickness;

Question 6

6. What way does the greatest heat elimination of the human body occur by?

Answer 6

a) radiation;

Question 7

7. The device for dynamic temperature recording is called:

Answer 7

b) recording thermometer;

Question 8

8. Absolute humidity is:

Answer 8

b) ratio of the maximum to the absolute humidity, expressed as a percentage

Question 9

9. Temperature fluctuations in the room horizontally shall not exceed:

Answer 9

b) 3 °C;

Question 10

10. The humidity indicator when the air temperature in the room 18-20 ºC is:

Answer 10

a) 30-60%;

Question 11

1. What purpose is the station psychrometer August applied in hygienic practice for?

Answer 11

c) determining the humidity.

Question 12

2. The atmospheric (barometric) pressure normally is:

Answer 12

c) 760 ± 20 mm Hg.

Question 13

3. Vertical temperature fluctuation in the room must not

exceed:

Answer 13

b) 3 °C;

Question 14

4. The dew point is:

Answer 14

b) temperature at which the absolute humidity is equal to the maximum;

Question 15

5. The aneroid barograph is used to determine

Answer 15

b) atmospheric pressure;

Question 16

6. What is the specific weight of oxygen in the natural com-position of air

Answer 16

b) 20.93%;

Question 17

7. What is the surface layer of the atmosphere?

Answer 17

c) troposphere.

Question 18

8. Development of decompression sickness is due to:

Answer 18

b) increased atmospheric pressure.

Question 19

9. What is the name of the dynamic instruments for monitor-ing the air temperature?

Answer 19

c) thermographs.

Question 20

10. What is the relative weight of nitrogen in the natural composition of air?

Answer 20

b) 78.1%

Question 21

1. Which layer of the atmosphere is the most polluted?

Answer 21

b) troposphere;

Question 22

2. The best indicator of temperature in the living space is:

Answer 22

a) 22-23 ºC;

Question 23

3. The station psychrometer August is used to determine:

Answer 23

b) relative humidity;

Question 24

4. What is the maximum humidity?

Answer 24

a) amount of water vapor in 1 m³ of air in grams at the time of saturation;

Question 25

5. What instruments are used in hygiene practices for dy-namic observation of atmospheric pressure?

Answer 25

b) barographs;

Question 26

6. What is the best indicator of relative humidity at the air temperature in the room below 15 °C?

Answer 26

c) 30-60%.

Question 27

7. What is the saturation deficit?

Answer 27

a) difference between the maximum and the absolute humidi-ty;

Question 28

8. The concept of climate includes the following features:

Answer 28

b) air velocity, air temperature, air humidity, radiant heat;

Question 29

9. In what way of heat elimination does the body lose about 45% of heat?

Answer 29

a) radiation;

Question 30

10. The atmospheric (barometric) pressure normally is:

Answer 30

c) 760 ± 20 mm Hg.

Question 31

1. Natural air pollutants are:

Answer 31

а) volcanic activity, forest fires, tornadoes;

Question 32

2. For what purposes is a “wind rose” (wind diagram) used in hygiene practice?

Answer 32

b) to determine the direction of wind;

Question 33

4. Characteristic signs of acute effects of atmospheric pollu-tion is:

Answer 33

a) high level of medical aid appealability, excessive mortality;

Question 34

5. What is the source of freons?

Answer 34

a) motor transport;

Question 35

6. Acid rains may include:

Answer 35

a) nitric, sulfuric acid;

Question 36

7. Optimal concentration of carbon dioxide in indoor air is:

Answer 36

c) 0.07%.

Question 37

8. Chronic specific diseases caused by various air pollutants include:

Answer 37

b) Itai-Itai disease, Minamata disease;

Question 38

9. Photoxidants are a complex of:

Answer 38

b) hydrocarbons and nitric oxide;

Question 39

10. The universal indicator of indoor air purity is:

Answer 39

b) carbonic acid;

Question 40

1. Krotov’s device is used to determine:

Answer 40

a) bacterial air pollution;

Question 41

2. Optimal concentration of carbon dioxide in indoor air is:

Answer 41

c) 0.07%.

Question 42

3. Natural chemical composition of air is:

Answer 42

a) 20.93% oxygen, 78.1% nitrogen, 0.03-0.04% carbon dioxide, from 10³ to 106 inert gases;

Question 43

4. The formation of Los Angeles type smog (photochemical mist) is due to:

Answer 43

b) clear, windless weather

Question 44

5. London-type smog is observed at:

Answer 44

a) cloudy, foggy weather;

Question 45

6. Optimum speed of air movement in the room is:

Answer 45

b) 0.2-0.4 m/s;

Question 46

7. Chronic nonspecific diseases caused by various air pollu-tants include:

Answer 46

a) chronic bronchitis;

Question 47

8. Solid pollutants include

Answer 47

b) ash, soot;

Question 48

9. The artificial sources of air pollution include:

Answer 48

b) motor transport;

Question 49

10. Liquid pollutants can lead to:

Answer 49

a) the formation of acid rain;