TESTS:
1. What diseases of infectious origin transmitted by water?
A) typhoid fever, paratyphoid fever, cholera, dysentery
B) typhoid, paratyphoid, dysentery, diphtheria
B) cholera, typhoid fever, scarlet fever, dysentery
D) cholera, gout, foot and mouth disease, fluorosis
D) scarlet fever, diphtheria, measles, smallpox windy
2. What we refer to special methods of water treatment?
A) iron removal, fluoridation, obezftorivanie, desalination
B) iron removal, fluoridation, obezftorirovanie, coagulation
B) fluorination, UV, chlorination, coagulation
D) fluoridation, UV, chlorination, coagulation
D) chlorination, coagulation, UV disinfection
3. What diseases are infectious origin emerge from the water?
A) caries, fluorosis, methemoglobinemia
B) flyuoraz, caries, methemoglobinemia, mumps, goiter
B) caries, fluorosis, arthritis, kidney stones
D) polyarthritis, urolithiasis, cholelithiasis, flat
4. What scheme to improve the quality of water is recommended if the water
quality meets the requirements of Class II water from an open water source?
A) coagulation, sedimentation, filtration, disinfection
B) coagulation, sedimentation, disinfection, filtration
B) coagulation, filtration, sedimentation, disinfection
D) coagulation, disinfection, sedimentation, filtration
E) filtration, disinfection, sedimentation, coagulation
5. What is the coli index of water?
A) if the number of bacteria contained in I liter of water
B) if the number of bacteria grown in I liter of water
B) the least amount of water, which contains I Escherichia coli
D) the total number of microbes contained in the water I k
D) The total number of bacteria contained in I ml of water
6. What is the optimal dose of coagulant
A) the least amount of coagulant, which gives a good effect coagulation
B) the highest amount of coagulant, which gives a good effect coagulation
B) the average amount of coagulant, which gives a good effect coagulation
D) the dose of coagulant containing a small amount of fluorine, arsenic
D) dose of coagulant, forming the least amount of bicarbonates
7. Select the size of the border zone II 3SO for stagnant water bodies:
A) if the number of winds in the direction of the water intake to 10% in all
directions at a distance of 3 km, if more than 10% in all directions 5 km
B) if the number of wind of 100 m, if more than 10% -5 km in all directions
B) when the number of winds up to 20% to 100m in all directions, and more than
10% -5km
D) the number of winds up to 20% of 10m in all directions, and more than 20% to
5 km
D) when the number of winds up to 20% -100 m in all directions, more than 20% 1000m
8. Select the size of the lateral limits of III belt 3SO from open reservoirs,
including tributaries
A) 3.5 miles
B) 4-5 km
B) 3-9 km
D) 9.4 miles
D) 750-1000 km
9. What kind of scheme to improve the quality of water is recommended for open
water sources in rural areas?
A) zabor- otstaivanie- filtration - chlorination
B) zabor- defending - waterpressure Tower - chlorination
B) fence, defending - waterpressure Tower - pressure filter
D) fence -waterpressure tower pressure filter -otstaivanie
D) a water tower- filtration - chlorination - defending
10. What are the indicators is monitoring the effectiveness of chlorination?
A) the total number of bacteria in 1 ml of undiluted water Coli index, residual
chlorine titer coli
B) the total number of bacteria B1 l undiluted water Coli index, if titers, residual
chlorine
B) general number of bacteria in 1 ml of undiluted water, residual chlorine, odor
and flavor
D) residual chlorine, odor, hlorabsorb, taste
D) hlorabsorb, smell, taste, chlorine dose
11. What is the residual chlorine in drinking water at free chlorination?
A) is 0.3-0.5 mg / l
B) 0.3-0.6
B) 0.3-0.7
D) 0.8
D) 0.8-0.7
12. What treatment scheme is proposed when the intake of water from surface
sources provided corresponding class II according to GOST 2761-84?
A) requires coagulation, sedimentation, filtration, disinfection
B) coagulation, sedimentation, filtration, ammoniation, disinfection
B) coagulation, iron removal, dechlorination, fluoridation
D) coagulation, sedimentation, obesftorirovanie, ammoniation
D) iron removal, sedimentation, septic tank, aero
13. What treatment scheme is proposed when the intake of water is provided from
an underground source otvechayushego II class according to GOST 2761-84?
A) aeration, filtration, disinfection
B) aeration, filtration, ammoniation, desalination
B) filtration, aeration, dechlorination, coagulation
D) filtration, coagulation, iodized
14. How many and what kind of sanitary protection zones headworks aqueducts
there?
A) 3 zones: Zone 1-strict regime, 2 and 3 -band restrictions
B) 3 zones: 1 - controlled area, 2 zone restrictions 3- surveillance zone
B) 3 zones: 1 high-security zone, 2 and 3 - surveillance zone
D) 2 zones: 1 - controlled area, 2 surveillance zone
D) 1 Zone: Zone Protection
15. What are the requirements hygiene when choosing a water source?
) flow rate must meet the requirements, quality indicators after treatment must
meet the requirements to be able to 300 organizations, be economically beneficial
B) The flow rate must comply with water quality must meet the requirements of
GOST, be cost-effective
B) water quality must meet the requirements, the economic calculations are
optional flow rate should not be able to SBV organization
D) flow rate must meet the requirements, the source must have persistence,
economic calculations are optional
D) You can choose any water sources
16. What is the procedure of choice source of centralized drinking water supply
with regard to their health security?
A) interstratal pressure, pressure-free interstratal, groundwater, surface
B) interstratal without pressure, interstratal pressure, groundwater, surface
B) ground, surface, interstratal, pressure and gravity
D) interstratal pressure, surface, ground, interstratal without pressure
D) surface, ground, interstratal without pressure and pressure
17. Advantages of artesian springs than open ponds?
A) there is no need to purify water, natural source of protection from dirt, water
intake location within the village itself, cost-effective
B) The location of the water intake within the village itself, there is no need to
purify water, natural source of protection against pollution, the adequacy of flow
rate
B) there is no need to purify water, natural source of protection against pollution,
sufficient flow rate, the absence of toxic chemicals
D) protection of the natural sources of pollution, sufficient flow rate, the lack of
toxic chemicals, constant pressure
D) a sufficient flow rate, the lack of toxic chemicals, constant pressure, does not
occupy a large area
18. What determines the frequency of sampling of water in the network?
A) of the population and disinfection methods, the source of water supply of the
season
B) of the population and methods of disinfection of water, the number of water
users, the source of water supply
B) of the population, industrial cleaning agents, the source, the number of water
users
D) of disinfection, the amount of water consumption, industrial cleaning agents,
from vodoprovodki
D) of water devices from the process, the location of the headwork
19. What are the chemicals affect the organoleptic properties of water?
A) the water component, iron, dry residue, sulfates
B) iron dry residue, sulfates, lead
B) a dry residue, sulfates, lead, arsenic
D) the dry residue, arsenic, nitrate, lead
D) arsenic, molybdenum, lead, nitrates
20. In what areas is carried out laboratory monitoring water quality water supply
system in accordance with GOST 950-2000?
A) in the field of water intake, pumping in places, in the distribution network and
the dead-end points
B) in dead spots on the site of the reservoir and water intake, pumping in places
B) a deadlock points in the tank, bulk storage, local intake
D) in sumps, tanks, towers, on side streets