﻿﻿ Concentration of carbon dioxide is calculated according to the formula
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# Concentration of carbon dioxide is calculated according to the formula

 A • 0.04%

 B
CO 2(%) = in which:

A. * A means the number of cans with atmosphere air were used for neutralization of the alkaline solution; B – the number of cans with premises’ air were used for neutralization of the alkaline solution; 0.04 – percentage of carbon dioxide in atmosphere air.

B. A means the number of cans with premises’ air were used for neutralization of the alkaline solution; B – the number of cans with atmosphere air were used for neutralization of the alkaline solution; 0.04 – percentage of carbon dioxide in atmosphere air.

C. A means percentage of carbon dioxide in atmosphere air; B – the number of cans with premises’ air were used for neutralization of the alkaline solution; 0.04 – the number of cans with atmosphere air were used for neutralization of the alkaline solution

D. Ameans the number of cans with atmosphere air were used for neutralization of the alkaline solution; B – the number of cans with premises’ air were used for neutralization of the alkaline solution; 0.04 – the optimal concentration of carbon dioxide in atmosphere air.

E. A means the optimal concentration of carbon dioxide in atmosphere air; B – the number of cans with premises’ air were used for neutralization of the alkaline solution; 0.04 – percentage of carbon dioxide in atmosphere air.

9.The necessary volume of ventilation is:

A. *the quantity of fresh air which should be input into premises per 1 hour to maintain carbon dioxide concentration under allowable level;

B. the quantity of fresh air which should be input into premises per 1 minute to maintain carbon dioxide concentration under allowable level;

C. the quantity of fresh air which should be input into premises per 1 hour to maintain oxygen concentration at the minimum level;

D. the quantity of fresh air which should be input into premises per 1 minute to maintain carbon dioxide concentration at the minimum level;

E. the quantity of fresh air which should be input into premises per 1 hour to maintain oxygen concentration at allowable level;

10.The frequency rate of air exchange (ventilation rate) shows:

A. * how many times the premises air could be replaced by fresh atmosphere air during 1 hour.

B. how many times the premises air could be replaced by fresh atmosphere air during 1 minute.

C. how many minutes it takes to replace the premises air by fresh conditioner air

D. how many times the premises air could be replaced by fresh conditioner air during 1 hour.

E. how many minutes it takes to replace the premises air by fresh atmosphere air

11. The calculative criterion of artificial ventilation efficiency is:

A. * Frequency of Air Exchange (ventilation rate)

B. CO2 concentration

C. Coefficient of Aeration

E. Operative Temperature

12. Criteria of ventilation efficiency evaluation:

A. Absolute humidity

B. The number of open windows

C. *Concentration of CO2, air exchange per hour, the coefficient of aeration, Bacteriological parameters

D. Concentration of CO2, the coefficient of aeration, Bacteriological parameters, for how long may a person work in the premise

E. Bacteriological parameters, hart rate, breath rate of a person

13. According to hygienic approaches the most reliable chemical criterion of natural ventilation efficiency is a:

A.* CO2 concentration in the air

B. O2 concentration in the air

C. H2 concentration in the air

D. NH3 concentration in the air

E. H2S concentration in the air

14. CO2 concentration was accepted as the most reliable chemical criterion of natural ventilation efficiency because it increasing with:

A. * parallel increasing of Anthropotoxins concentration in the air, deterioration of air physical properties - dust cumulation and air heating, etc., and deterioration of air organoleptic properties

B. parallel increasing of Anthropotoxins concentration in the air

C. parallel deterioration of air physical property - dust cumulation

D. parallel deterioration of air physical property - air heating

E. parallel deterioration of air organoleptic properties

15. Set of Anthropotoxins of the air includes all following compounds with exception of:

A.* Hydrogen cyanide, Hydrocyanic acid

B. NH3

C. H2S

D. Indole

E. Scatole

16. Completed set of methods for investigation of microclimate integrated influence on the organism includes:

A. * Catathermometry, Effective Temperatures Method, Operative Temperatures Method (Equivalently Effective Temperatures Method), Radiation Temperatures Method (Resulting Radiation Temperatures Method)

B. Catathermometry and Effective Temperatures Method

C. Catathermometry and Operative Temperatures Method (Equivalently Effective Temperatures Method)

E. Catathermometry, Effective Temperatures Method and Operative Temperatures Method (Equivalently Effective Temperatures Method)

17. Catathermometry is a method which evaluates:

A.* integrated influence of air speed and the air temperature

B. integrated influence of air temperature and air humidity

C. integrated influence of air temperature, air humidity and air speed

D. integrated influence of air temperature, air humidity, air speed and radiation temperature

E. integrated influence of average air temperature and average air humidity

18. The Effective Temperatures Method is a method which evaluates:

A. * integrated influence of air temperature and the air humidity

B. integrated influence of air speed and the air temperature

C. integrated influence of the air temperature, air humidity and air speed

D. integrated influence of the air temperature, air humidity, air speed and radiation temperature

E. integrated influence of average air temperature and average air humidity

19. The Operative Temperatures Method (The Equivalently Effective Temperatures Method) is a method which evaluates:

A.* integrated influence of the air temperature, air humidity and air speed

B. integrated influence of the air temperature, air humidity, air speed and radiation temperature

C. integrated influence of air temperature and the air humidity

D. integrated influence of air speed and the air temperature

E. integrated influence of average air temperature and average air humidity

20. The Radiation Temperatures Method (The Resulting Radiation Temperatures Method) is a method which evaluates:

A.* integrated influence of the air temperature, air humidity, air speed and radiation temperature

B. integrated influence of air temperature and the air humidity

C. integrated influence of air speed and the air temperature

D. integrated influence of the air temperature, air humidity and air speed

E. integrated influence of average air temperature and average air humidity

21. Heat Comfort Zoneis a range of temperatures, in which:

A. * 50% of persons, which are present in a denoted room, have feeling of full heat comfort

B. 55% of persons, which are present in a denoted room, have feeling of full heat comfort

C. 65% of persons, which are present in a denoted room, have feeling of full heat comfort

D. 70% of persons, which are present in a denoted room, have feeling of full heat comfort

E. 75% of persons, which are present in a denoted room, have feeling of full heat comfort

The 3rd level tests

№ з/п 78 № з/п у БД3293

Patient with thyreotoxicosis is in the 2 beds hospital ward of therapeutic department. The area of the ward is 18 m2, height - 3 m, ventilation rate - 2,5 /hr. Air temperature - 20°С, relative humidity - 45%, air movement velocity - 0,3 m/s, light coefficient - 1/5, noise level - 30 dB. Do hygienic assessment of the conditions:

A. *uncomfortable microclimate

B. non-effective ventilation

C. poor lighting

D. high level of noise

E. all conditions are OK

Topic: Hygiene of populated areas planning and developing. Sanitary description of an object procedure.

Author: Teklyuk Ruslan, Lecturer / Teacher of Hygiene and Ecology Department

1.Hygiene of populated areas planning has the following purpose:
* A. To ensure adequate living conditions, prophylaxis of diseases among urban residents
B. To prevent diseases among inhabitants of countryside
C. To make sites development the cheapest one.
D. To provide more comfortable and cheap living conditions, to minimize time loss, to decrease greenhouse effect in cities, to provide aesthetics of sights and industrial design
E. To provide optimum day regimen, to make transportation more simple. Goncharuk E. Environmental sanitation. - K.: Health, 2003. - S. 680-681.

2. Town or city should have the following areas in accordance to their functions:
* A. Residential, Industrial, landscape and recreation areas,
B. Landscape and production.areas
C. Administrative center, suburbs, landscape and recreational areas, central park for walking
D. Industrial that combined with the residential.
E. Elite zone, usual residential, zone of slums.

Goncharuk E. Environmental sanitation. - K.: Health, 2003. - S. 696-697.

3. What facilities should be located in a residential area of a city?
* A. Residential buildings, municipal buildings, social institutions and personal services etc.
B. Residential buildings, municipal buildings, industrial enterprises if they are not very toxic, transport stations if they are not very noisy, social institutions and personal services.
C. Dwelling houses and student’s accommodations only.
D. Social institutions, residential buildings, Industrial enterprises that are profitable and produce noise less than 100 decibel.
E. It depends on decision of a local community.
Goncharuk E. Environmental sanitation. - K.: Health, 2003. - S. 696.

4. Landscape gardening of a city must be not less than:
* A. For residential areas - 40%, for zones of preschool and school institutions - 80%
B. For residential areas - 85%, for industrial zone 45 %
C. For preschool and school institutions - 95%
D. Very little ‘cause trees may damage cars and people when hurricane
E. For residential areas - 30%, for industrial zone – 25 %, for zones of preschool and school institutions – 50 %.

Goncharuk E. Environmental sanitation. - K.: Health, 2003. - S. 711.

5. Unfit for housing building and public facilities area that has the following level of radioactive contamination:
* A. Isotopes of Cesium over 5 Cu/km2
B. Strontium isotopes 0,10 Cu/km2
C. Isotopes of plutonium 0.001 Cu/km2
D. Not permissible any radioactive contamination
E. Strontium isotopes 1.0 Cu/km2

Goncharuk E. Environmental sanitation. - K.: Health, 2003. - S. 374.

6. Ground area around multistoried dwellings should include the following functional zones:

A.*Sanitary area around the building, ground for rest of adult people, playground for children, area for economic purposes (place for refuse bins, for cleaning of things etc.), green area. B. Sanitary area around the building with minimal radius 100 m, playground for children, sports ground, ground for rest of adult, area for stores, esp. grocery and provision, area for parking and garages, green area. C.Area for economic purposes (place for refuse bins, for cleaning of things etc.), green area. D.Playground for children, sports ground. E.Sanitary area around the building with minimal radius 100 m, playground for children, sports ground, ground for rest of adult, area for stores, esp. grocery and provision, area for parking and garages, green area. Place for dustbins in the distance not less than 20 m from dwelling.

7. Playground area near the multistoried building must be located:
* A. At a distance of not less than 12 meters from dwelling and at least 20 m from dustbins.
B. Only beside garages.
C. Not closer than 5 meters from dwelling and at least 10 m from dustbins.
D. Near the windows that are protected by grates.
E. Close to dwelling to observe children easily, but not closer than 5 meters to the windows.

8. Playground area for children of preschool and junior school age beside buildings should have not less then:

A. *0.7 m2 per 1 person

B. 0.1 m2 per 1 person

C. 0.3 m2 per 1 person

D. 5 m2 per 1 person

E. 10 m2 per 1 person

9. Sports ground should be allocated in the distance from habitation 10 – 40 meters and should have the following minimal area:

1. *2 m2 / person
2. 0.5 m2/ person
3. 0.1 m2/ person
4. 10 m2 /person
5. 20 m2 / person

Goncharuk E. Environmental sanitation. - K.: Health, 2003. - S. 698-705.

10. Orientation of residential building’s windows is correct if it provides the following insolation (solar irradiation):
* A. At least 2.5 hours per day.
B. At least 1 hour per day.
C. Insolation should take place to 12 a.m. and after 4 p.m.
D. Insolation should take place after 4 p.m.
E. Insolation should be as much effective as possible, especially in winter.
Hygiene and Environment: Handbook / Edited by V. Bardova. - Kiev: A new book, 2006. - S. 158.703.

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