11568170
Descrição
Quiz por Med Student , atualizado more than 1 year ago
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Criado por Med Student
aproximadamente 7 anos atrás
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Questão 1
Questão
Hygiene is one of the main objects of the preventive medicine
Responda
- True
- False
Questão 2
Questão
What is a hygienic norm?
Responda
-
a law document about the quality indices of environmental factors
-
the maximal or minimal physiologically safe levels of environmental factors
Questão 3
Questão
The main branches of hygiene are:
Responda
-
childhood and adolescent hygiene
-
occupational medicine
-
epidemiology
-
hygiene of nutrition
Questão 4
Questão
The specific methods of hygiene are:
Responda
-
sanitary description
-
sanitary investigation
-
biochemical method
-
complex hygienic method
Questão 5
Questão
Which are the types of health control?
Responda
-
current
-
preliminary
-
preliminary and current
Questão 6
Questão
The monitoring of drinking water is
Responda
-
periodical
-
permanent
-
periodical and permanent
Questão 7
Questão
The permanent manicuring of drinking water includes:
Responda
-
organoleptic analysis
-
physical and chemical indices
-
epidemiological indices
-
microbiological indices
Questão 8
Questão
The hardness of water depends on the content of:
Responda
-
calcium and magnesium
-
iron and manganese
Questão 9
Questão
The hardness of water is expressed by mini-equivalent per liter (meqV/l)
Responda
- True
- False
Questão 10
Questão
The organoleptic indices of drinking water are:
Responda
-
color, taste, hardness, colony counts
-
color, taste, odor, turbidity
-
color, taste, odor, hardness
Questão 11
Questão
Indicate the laboratory analysis for the drinking water quality according to Instruction No. 9 / 2001 year:
Responda
-
organoleptic indices
-
microbiological indices
-
epidemiological indices
-
physical and chemical indices
-
radiological indices
Questão 12
Questão
Water odor should be no more than 2 bales at temperature of 20°C
Responda
- True
- False
Questão 13
Questão
Which is the hygienic norm for the nitrate content in drinking water?
Responda
-
50 mg/l
-
100 mg/l
-
0.5 mg/l
Questão 14
Questão
Nitrites are indicators for recent organic pollution of water
Responda
- True
- False
Questão 15
Questão
Which elements and compounds have influence on the organoleptic indices of drinking water?
Responda
-
ammonia and nitrite
-
chlorides and sulfate
-
iron
-
calcium and magnesium
-
nitrate
Questão 16
Questão
What is oxidation?
Responda
-
This is the oxygen in 1 liter water
-
This is the oxygen, necessary for the oxidation of organic substances in 1 liter water
-
This is the organic matter in 1 liter water
Questão 17
Questão
The water pH determination may be measured with:
Responda
-
pH-meter
-
pH-indicator paper
-
Merck-colorimetric pH test
Questão 18
Questão
Which is the hygienic norm of the residual chlorine in drinking water?
Responda
-
0.3-0.4 mg/l
-
1.0-3.0 mg/l
-
0.05-0.08 mg/l
Questão 19
Questão
Which physical methods are used for disinfection of drinking water?
Responda
-
boiling
-
ultraviolet radiation
-
infrared radiation
Questão 20
Questão
The residual chlorine in drinking water is:
Responda
-
free residual chlorine
-
combined residual chlorine
-
free and combined residual chlorine
Questão 21
Questão
The maximum permissible level of chlorides in drinking water is 250 mg/l
Responda
- True
- False
Questão 22
Questão
Which elements and compounds have influence on the organoleptic indices of drinking water?
Responda
-
ammonia and nitrite
-
chlorides and sulfate
-
iron
-
calcium and magnesium
-
nitrate
Questão 23
Questão
Microbiological indices of drinking water are:
Responda
-
Coliforms
-
Enterococcus
-
Staphylococcus aureus
Questão 24
Questão
Is the coliform permissible in 100 ml of drinking water?
Responda
- True
- False
Questão 25
Questão
The concentration of carbon dioxide (CO2) in closed gems is used for:
Responda
-
assessment of the air quality
-
efficacy of the ventilation system
-
index of the thermal comfort
Questão 26
Questão
The concentration of CO2 near to 8-10 vol. % causes death
Responda
- True
- False
Questão 27
Questão
The content of nitrogen in the atmospheric air is:
Responda
-
about 78 vol.%
-
about 69 vol.%
-
about 85 vol.%
Questão 28
Questão
The main sources of air pollution are:
Responda
-
industries
-
domestic sources
-
transport
-
agriculture
Questão 29
Questão
The natural pollutants of the atmospheric air are:
Responda
-
volcanic activity
-
ocean sands
-
smoke and dust
-
desert sands
Questão 30
Questão
The types of air pollution limits in Bulgaria are
Responda
-
daily permissible concentration
-
season permissible concentration
-
hour permissible concentration
-
annual permissible concentration
Questão 31
Questão
Gaseous pollutants are removed from ambient air for analysis by use of:
Responda
-
absorption
-
titration of the sample
-
grab sampling
Questão 32
Questão
Which are the air pollutants?
Responda
-
oxygen
-
nitrogen dioxide
-
dust
-
carbon monoxide
Questão 33
Questão
Dust is classified as:
Responda
-
inert
-
toxic
-
allergenic
-
fibrogenic
Questão 34
Questão
Methods for dust analysis are:
Responda
-
comparison
-
filtration
-
impingement
Questão 35
Questão
The microclimate includes the following physical factors:
Responda
-
temperature, humidity, air velocity, infrared radiation
-
temperature, humidity, atmospheric pressure, ultraviolet radiation
Questão 36
Questão
The instrument used for measuring atmospheric pressure is:
Responda
-
thermometer
-
barometer
-
pH-meter
Questão 37
Questão
”Wind rose" is:
Responda
-
a flower-like diagram indicating the relative frequencies of different wind direction for given station and period of time
-
a dynamic complex of meteorological factors in respect to given place for short period of time
Questão 38
Questão
Absolute humidity is the weight of water vapor in a unit volume of air. It is expressed in g/m3 or Pa
Responda
- True
- False
Questão 39
Questão
Barometric pressure varies with:
Responda
-
temperature
-
air pollutants
-
weather
Questão 40
Questão
The basic methods for measuring the humidity are.
Responda
-
hydrometry (direct method)
-
psychrometry (indirect method)
Questão 41
Questão
Kata thermometer is:
Responda
-
a mercury thermometer
-
an alcohol thermometer
-
a glob thermometer
Questão 42
Questão
Infrared radiation occupies the region in the electromagnetic spectrum between microwaves and visible light
Responda
- True
- False
Questão 43
Questão
The scale of Bedford for determination of subjective thermal sensation is:
Responda
-
7 bale - very hot, hot, warm. comfort, less cool, cool, cold
-
5 bale - hot, warm, comfort, cool, cold
Questão 44
Questão
Which is the hygienic norm of the air temperature in an living rooms?
Responda
-
20 - 22°C
-
15 - 16°C
-
28 - 30°C
Questão 45
Questão
Which is the hygienic norm of the air velocity in the living rooms?
Responda
-
0.5 - 1 m/s
-
1 - 2 m/s
-
0.2 - 0.4 m/s
Questão 46
Questão
Which is the hygienic norm of humidity in the living rooms?
Responda
-
10 - 20%
-
40 - 60%
-
80 - 100%
Questão 47
Questão
For efficient vision, the following light factors are essential:
Responda
-
sufficiency, distribution, absence of glare, absence of slurp shadows, steadiness, color of light
-
sufficiency, distribution, the wind, color of light, temperature
Questão 48
Questão
Types of ventilation are
Responda
-
natural ventilation
-
mechanical ventilation
Questão 49
Questão
Artificial ventilation may be of the following types:
Responda
-
exhaust ventilation
-
plenum ventilation
-
the wind
-
balanced ventilation
-
air conditioning
Questão 50
Questão
The air velocity, the wind direction, the air temperature and the humidity are meteorological factors, which determine the microclimate in appointed area.
Responda
- True
- False
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