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hygiene > L1 > Flashcards

L1 Flashcards

1
Q
  1. A device for determining the relative humidity:
A

c) hygrometer.

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

a) troposphere;

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3
Q
  1. The cause of altitude sickness is:
A

c) decrease of oxygen partial pressure.

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4
Q
  1. The concept of climate includes the following features:
A

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

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

a) decompression sickness;

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

a) radiation;

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7
Q
  1. The device for dynamic temperature recording is called:
A

b) recording thermometer;

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8
Q
  1. Absolute humidity is:
A

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

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

b) 3 °C;

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

a) 30-60%;

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11
Q
  1. What purpose is the station psychrometer August applied in hygienic practice for?
A

c) determining the humidity.

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12
Q
  1. The atmospheric (barometric) pressure normally is:
A

c) 760 ± 20 mm Hg.

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13
Q
  1. Vertical temperature fluctuation in the room must not

exceed:

A

b) 3 °C;

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14
Q
  1. The dew point is:
A

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

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15
Q
  1. The aneroid barograph is used to determine
A

b) atmospheric pressure;

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16
Q
  1. What is the specific weight of oxygen in the natural com-position of air
A

b) 20.93%;

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17
Q
  1. What is the surface layer of the atmosphere?
A

c) troposphere.

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18
Q
  1. Development of decompression sickness is due to:
A

b) increased atmospheric pressure.

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19
Q
  1. What is the name of the dynamic instruments for monitor-ing the air temperature?
A

c) thermographs.

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20
Q
  1. What is the relative weight of nitrogen in the natural composition of air?
A

b) 78.1%

21
Q
  1. Which layer of the atmosphere is the most polluted?
A

b) troposphere;

22
Q
  1. The best indicator of temperature in the living space is:
A

a) 22-23 ºC;

23
Q
  1. The station psychrometer August is used to determine:
A

b) relative humidity;

24
Q
  1. What is the maximum humidity?
A

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

25
Q
  1. What instruments are used in hygiene practices for dy-namic observation of atmospheric pressure?
A

b) barographs;

26
Q
  1. What is the best indicator of relative humidity at the air temperature in the room below 15 °C?
A

c) 30-60%.

27
Q
  1. What is the saturation deficit?
A

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

28
Q
  1. The concept of climate includes the following features:
A

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

29
Q
  1. In what way of heat elimination does the body lose about 45% of heat?
A

a) radiation;

30
Q
  1. The atmospheric (barometric) pressure normally is:
A

c) 760 ± 20 mm Hg.

31
Q
  1. Natural air pollutants are:
A

а) volcanic activity, forest fires, tornadoes;

32
Q
  1. For what purposes is a “wind rose” (wind diagram) used in hygiene practice?
A

b) to determine the direction of wind;

33
Q
  1. Characteristic signs of acute effects of atmospheric pollu-tion is:
A

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

34
Q
  1. What is the source of freons?
A

a) motor transport;

35
Q
  1. Acid rains may include:
A

a) nitric, sulfuric acid;

36
Q
  1. Optimal concentration of carbon dioxide in indoor air is:
A

c) 0.07%.

37
Q
  1. Chronic specific diseases caused by various air pollutants include:
A

b) Itai-Itai disease, Minamata disease;

38
Q
  1. Photoxidants are a complex of:
A

b) hydrocarbons and nitric oxide;

39
Q
  1. The universal indicator of indoor air purity is:
A

b) carbonic acid;

40
Q
  1. Krotov’s device is used to determine:
A

a) bacterial air pollution;

41
Q
  1. Optimal concentration of carbon dioxide in indoor air is:
A

c) 0.07%.

42
Q
  1. Natural chemical composition of air is:
A

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

43
Q
  1. The formation of Los Angeles type smog (photochemical mist) is due to:
A

b) clear, windless weather

44
Q
  1. London-type smog is observed at:
A

a) cloudy, foggy weather;

45
Q
  1. Optimum speed of air movement in the room is:
A

b) 0.2-0.4 m/s;

46
Q
  1. Chronic nonspecific diseases caused by various air pollu-tants include:
A

a) chronic bronchitis;

47
Q
  1. Solid pollutants include
A

b) ash, soot;

48
Q
  1. The artificial sources of air pollution include:
A

b) motor transport;

49
Q
  1. Liquid pollutants can lead to:
A

a) the formation of acid rain;

hygiene (3 decks)

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