Environmental Health — Flashcards

Flashcard 1: Sling psychrometer (also called whirling psychrometer) is used to measure the _____.

Answer: relative humidity

Flashcard 2: The given image is of a dry and wet bulb _____

Answer: hygrometer

Flashcard 3: 1c28c6892129450b8101b9401ca20592-ao-1

Answer: heat stress index

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Flashcard 4: size of water level is _____ in slow sand filters

Answer: 1-1.5 meters

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Flashcard 5: _____ is used for disinfection of well

Answer: bleaching powder

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Flashcard 6: color of water should ideally be <_____ TCU

Answer: 5

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Flashcard 7: 3abff1849561430eb35cbde54d6018e1-ao-1

Answer: strength of sewage acc to BOD

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Flashcard 8: removal of which plants is done to control filariasis

Answer: pistia plants water hyacinths

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Flashcard 9: _____ scheme promotes safe fuels among vulnerable populations

Answer: Ujjwala

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Flashcard 10: _____ method is used for sharps and syringes in areas without CBWTF

Answer: sharp pit

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Flashcard 11: vinyl chloride exposure can cause _____ cancer

Answer: liver

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Flashcard 12: doors+windows of school should be >_____% of ground area

Answer: 25

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Flashcard 13: ratio of night soil to refuse is _____ in layering process of composting

Answer: 1:3

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Flashcard 14: culex mosquitos come from _____

Answer: dirty polluted water

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Flashcard 15: 568ee3640c184fbaa2379da689136973-ao-3

Answer: trench method of solid waste disposal

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Flashcard 16: 30f11bd4ffc94508aa29637b66507828-ao-1

Answer: criteria for deep burial of biomedical waste

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Flashcard 17: flash method works at _____ degree celsius temp. for pasteurisation

Answer: 72

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Flashcard 18: 537ad22c5d234041adada02f7b416b76-oa-1

Answer: sanitary latrine excreta disposal method at unsewered areas

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Flashcard 19: primary school land should be

Answer: >5 acres + >1 acre/100 students

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Flashcard 20: disinfectant is put for _____ time in blood spill covered with paper

Answer: 20 mins

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Flashcard 21: discarded drugs are segregated into _____ category of BMW

Answer: yellow d

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Flashcard 22: _____ is the general microbiological indicator of water

Answer: E.coli

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Flashcard 23: 1. Identify → _____

Answer: Sling psychrometer , to measure relative humidity

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Flashcard 24: upper permissible limit for color of water is _____ TCU

Answer: 15

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Flashcard 25: hot air leads to _____ in relative humidity

Answer: decrease

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Flashcard 26: 3323f70f79e14b3cbe3e2902781bf872-ao-4

Answer: sand filters

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Flashcard 27: chlorine levels should be _____ in safe water after contact time of 1 hour

Answer: >0.5 ppm

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Flashcard 28: _____ is the MC used insectiside repellent

Answer: DEET

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Flashcard 29: mc route of lead toxicity is _____

Answer: inhalation

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Flashcard 30: insecticide dust is useful for _____ mosquito

Answer: anopheles

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Flashcard 31: 609e056481f64927865c5657f343b82c-ao-2

Answer: septic tank excreta disposal method at unsewered areas

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Flashcard 32: _____ is the biological indicator for air pollution

Answer: presence of lichen

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Flashcard 33: cattle should be atleast _____ feet away from the house

Answer: 25

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Flashcard 34: 125d773b33354caf968a6f58399e48a9-ao-3

Answer: day light factor

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Flashcard 35: 3323f70f79e14b3cbe3e2902781bf872-ao-5

Answer: sand filters

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Flashcard 36: impounding reservoir is an example of _____ water source

Answer: surface

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Flashcard 37: gravel size is _____ in slow sand filters

Answer: 0.2-0.3 mm

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Flashcard 38: biomedical waste managment(BMW) comes under ministry of _____

Answer: forest and environment and climate change

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Flashcard 39: non organic waste is called _____

Answer: rubbish

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Flashcard 40: 0.5 gm halazone(chlorine tablet) is enough for _____ literes of water

Answer: 20

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Flashcard 41: 1. Identify → _____

Answer: Anemometer (used to measure air velocity)

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Flashcard 42: f88ddafee050488590dfb35b04ed01d4-ao-5

Answer: safe water qualities

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Flashcard 43: instrument:_____ Use: _____

Answer: globe thermometer

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Flashcard 44: _____ is segregated in yellow b category of BMW

Answer: animal anatomical waste

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Flashcard 45: 3323f70f79e14b3cbe3e2902781bf872-ao-1

Answer: sand filters

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Flashcard 46: area of a room in a house should be >_____ per person

Answer: 100 sq feet

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Flashcard 47: water can be defluoridated by _____ technique

Answer: nalgonda

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Flashcard 48: _____ is the indicator for nearby contamination of water

Answer: faecal streptococci

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Flashcard 49: _____ form of chlorine is most commonly used for chlorination

Answer: chlorine dioxide

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Flashcard 50: f88ddafee050488590dfb35b04ed01d4-ao-1

Answer: safe water qualities

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Flashcard 51: school window should be >_____ above level

Answer: 2.5 feet

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Flashcard 52: chlorine demand is calculated by _____

Answer: horrocks apparatus

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Flashcard 53: 537ad22c5d234041adada02f7b416b76-oa-2

Answer: sanitary latrine excreta disposal method at unsewered areas

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Flashcard 54: sanitary well should be within _____ distance from household

Answer: 100 m

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Flashcard 55: 1. Identify → _____ 2. Features → _____

Answer: Anopheles Larva

Extra: y

Flashcard 56: _____ air changes/hour are recommended in OPD for a room of 24m3

Answer: 6

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Flashcard 57: house should be _____ meters away from the road

Answer: >15

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Flashcard 58: 1. Identify → _____

Answer: Hygrometer, used to measure humidity

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Flashcard 59: 537ad22c5d234041adada02f7b416b76-oa-3

Answer: sanitary latrine excreta disposal method at unsewered areas

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Flashcard 60: _____ gases cause skin cancer

Answer: radon and ozone

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Flashcard 61: food adulteration is substance that _____

Answer: harms or decreases nutritive value

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Flashcard 62: permissible water level is _____ in rapid sand filters

Answer: 1-1.5 meters

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Flashcard 63: blue bag includes _____ biomedical waste managment

Answer: glass and orthopedic implants

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Flashcard 64: _____ is the most hazardous primary air pollutent

Answer: CO

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Flashcard 65: temperature of incinerators is _____ degree celsius

Answer: 800-1100

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Flashcard 66: _____ is the indicator of distant contamination of water

Answer: clostridium perfringens

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Flashcard 67: _____ scheme promotes LED use in country

Answer: ujala

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Flashcard 68: _____ is done to check gross contamination in milk

Answer: methylene blue reductase test/MBRT

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Flashcard 69: _____ are segragated into yellow e category of BMW

Answer: discarded containers of chemicals and disinfectants

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Flashcard 70: 609e056481f64927865c5657f343b82c-ao-4

Answer: septic tank excreta disposal method at unsewered areas

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Flashcard 71: AQI of <_____ means good air quality

Answer: 50

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Flashcard 72: sandbed size is _____ in slow sand filters

Answer: 1.5- 2 meters

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Flashcard 73: outer wall of school should be _____ thick

Answer: 10 inches

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Flashcard 74: _____ is liquid waste without fecal matter

Answer: sullage

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Flashcard 75: per child sitting area should not be <_____

Answer: 10 sq. feet

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Flashcard 76: incinerator decreases weight of waste by _____%

Answer: 25-35

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Flashcard 77: chlorine level in a water tanker should be _____ ppm

Answer: 2-3

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Flashcard 78: b0ea78eb314b441cb9f15880b58291d2-ao-2

Answer: excreta disposal in unsewered areas

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Flashcard 79: water is stored for _____ time in sedimentaiton tank of rapid sand filter

Answer: 6-7 hours

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Flashcard 80: turbidity of water is measured in _____ unti

Answer: nephalometric

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Flashcard 81: cool air leads to _____ in relative humidity

Answer: increase

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Flashcard 82: sewage is _____

Answer: liquid waste with faecal matter 

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Flashcard 83: water is mixed with _____ in mixing chamber of rapid sand filter

Answer: alum

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Flashcard 84: heat stress index value ranges from _____

Answer: 0 to 100

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Flashcard 85: 2adcda56ad83444b9af9eff2bc7a4e93-ao-2

Answer: hardness of water

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Flashcard 86: heat production in composting is _____ degree celsius

Answer: >60

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Flashcard 87: _____ air changes/hour are recommended in high risk areas for a room of 24m3

Answer: 12

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Flashcard 88: incinerator is not suitable for which wastes

Answer: pressurised cans reactive chemicals heavy metals sharps (metal ni pressurised can ma chappu(sharp) and bomb)

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Flashcard 89: 125d773b33354caf968a6f58399e48a9-ao-1

Answer: day light factor

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Flashcard 90: main disinfection action is by _____ ions in chlorination

Answer: hypochlorus

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Flashcard 91: _____ enzyme test results in  negative  after pasteurisation of milk

Answer: phosphatase

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Flashcard 92: water should be boiled for _____ time for household purification

Answer: 10-20 mins

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Flashcard 93: fresh fish has _____ gills

Answer: bright red

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Flashcard 94: horrocks apparatus contains _____ cups

Answer: 6

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Flashcard 95: SO2 is an indicator for _____

Answer: industrial air pollution

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Flashcard 96: day light factor formula is

Answer: illumminiscence inside/illuminiscence outside*100 MCQ

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Flashcard 97: UN world water day is on _____

Answer: 22nd march

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Flashcard 98: f88ddafee050488590dfb35b04ed01d4-ao-2

Answer: safe water qualities mg/l = ppm

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Flashcard 99: airborne particle size is _____

Answer: <10 microns

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Flashcard 100: 1. 2. Identify → _____ 3. Uses → _____

Answer: Wet/dry bulb thermometer

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Flashcard 101: AQI is _____ in severe air pollution

Answer: 400-500

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Flashcard 102: 1. Identify → _____ 2. Uses → _____

Answer: Globe thermometer

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Flashcard 103: _____ days is the optimum time for water storage

Answer: 10-14

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Flashcard 104: formation of humus takes _____ of time in composting

Answer: 4-6 months

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Flashcard 105: 3323f70f79e14b3cbe3e2902781bf872-ao-3

Answer: sand filters

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Flashcard 106: examples of larvivorus fishes

Answer: gambusia poecilla

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Flashcard 107: organic waste is called _____

Answer: garbage

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Flashcard 108: Mc Ardle index depends on _____

Answer: CET(corrected effective temperature)

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Flashcard 109: _____ is the sum of grit index and soiling index

Answer: coefficient of haze

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Flashcard 110: 1. Identify → _____ 2. Application: _____

Answer: Horrock's Apparatus

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Flashcard 111: _____ method is used in coliform test

Answer: Mc cartney chart

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Flashcard 112: 125d773b33354caf968a6f58399e48a9-ao-4

Answer: day light factor

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Flashcard 113: temperature is kept at _____ degree celsius for BOD measurement

Answer: 20

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Flashcard 114: 3323f70f79e14b3cbe3e2902781bf872-ao-2

Answer: sand filters

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Flashcard 115: air flow in plenum is from _____

Answer: outside to inside

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Flashcard 116: 1. Identify → _____ 2. Uses → _____

Answer: Kata Thermometer

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Flashcard 117: corrected effective air temperature(CET)= effective air temperature(AET) + _____

Answer: radiant heat

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Flashcard 118: 1 mEq of hardness of water= _____ mg of calcium carbonate

Answer: 50

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Flashcard 119: bleaching powder gives _____% chlorine

Answer: 33

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Flashcard 120: b0ea78eb314b441cb9f15880b58291d2-ao-1

Answer: excreta disposal in unsewered areas

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Flashcard 121: f88ddafee050488590dfb35b04ed01d4-ao-3

Answer: safe water qualities

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Flashcard 122: _____ layer is the heart of slow sand filters

Answer: scmutzdecke

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Flashcard 123: chlorimeter/chloroscope is used for _____

Answer: chlorine estimation

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Flashcard 124: _____ reagent is used for chlorine estimation

Answer: orthotolidine

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Flashcard 125: b0ea78eb314b441cb9f15880b58291d2-ao-3

Answer: excreta disposal in unsewered areas

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Flashcard 126: _____ index measures particulate matter in air

Answer: grit

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Flashcard 127: 568ee3640c184fbaa2379da689136973-ao-4

Answer: trench method of solid waste disposal

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Flashcard 128: sandbed size is _____ in rapid sand filter

Answer: 1 meter

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Flashcard 129: noise in hospitals should be _____ dB

Answer: 20-35

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Flashcard 130: ideally water turbidity should be <_____ NU

Answer: 1

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Flashcard 131: _____ is the indicator in horrocks apparatus

Answer: starch iodine

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Flashcard 132: _____ filter is choked most commonly in RO filters

Answer: carbon block

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Flashcard 133: f88ddafee050488590dfb35b04ed01d4-ao-4

Answer: safe water qualities

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Flashcard 134: chlorine demand means amount of chlorine needed to achieve _____

Answer: break point chlorination

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Flashcard 135: mercury goes in _____ category of BMW

Answer: yellow

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Flashcard 136: there should be 1 urinal for every _____ students in school

Answer: 60

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Flashcard 137: High test hypochlorite solution gives _____% chlorine

Answer: 66

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Flashcard 138: _____ are segragated into yellow c category of BMW

Answer: discarded blood and PPE

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Flashcard 139: parameters of effective temperature are

Answer: Temperature humidity air movement cooling power of air

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Flashcard 140: max. allowed water turbidity is _____ NU

Answer: 5

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Flashcard 141: _____ are segragated in yellow f category of BMW

Answer: silver x ray film fluid, disinfectants, aspirated body fluids

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Flashcard 142: instrument:_____ use: _____

Answer: psychrometer

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Flashcard 143: coliform test is done to check _____ in water

Answer: E.coli

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Flashcard 144: primary treatment at sewage treatment plant includes which stages

Answer: screening grit chamber primary sedimentation tank

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Flashcard 145: there should be 1 latrine for every _____ students in school

Answer: 100

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Flashcard 146: 125d773b33354caf968a6f58399e48a9-ao-2

Answer: day light factor

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Flashcard 147: holder method works at _____ degree celsius for pasteurisation

Answer: 66

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Flashcard 148: height of a house window should be _____ from the ground

Answer: <3 feet

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Flashcard 149: deep burial method is used for disposal of  _____ in area without CBWTF

Answer: infectious anatomical waste

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Flashcard 150: disadvantage of deep well is _____

Answer: hard water

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Flashcard 151: DDT is effective for _____ time

Answer: 6 months

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Flashcard 152: white bag includes _____ in biomedical waste management

Answer: needle,metal sharps 

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Flashcard 153: size of sand gravel in rapid sand filter is _____ mm and in slow sand filter is _____ mm

Answer: 0.4-0.7

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Flashcard 154: 568ee3640c184fbaa2379da689136973-ao-1

Answer: trench method of solid waste disposal

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Flashcard 155: relative humidity ranges from _____

Answer: 35-65

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Flashcard 156: 609e056481f64927865c5657f343b82c-ao-1

Answer: septic tank excreta disposal method at unsewered areas

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Flashcard 157: _____ is segrageted into yellow(a)category of BMW

Answer: human anatomical waste

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Flashcard 158: _____cubic feet/hour air is required to live

Answer: 3000

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Flashcard 159: red category includes _____ waste

Answer: rubber, tube and plastic

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Flashcard 160: BMW(biomed. waste manag.) is held under department of _____

Answer: CPCB

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Flashcard 161: incinerator decreases the volume of waste by _____ %

Answer: 80-95

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Flashcard 162: f88ddafee050488590dfb35b04ed01d4-ao-6

Answer: safe water qualities

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Flashcard 163: instrument:_____ Use:_____

Answer: anemometer

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Flashcard 164: _____ air changes/hour are required for healthy living

Answer: 2-3

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Flashcard 165: smoke in air is measured by _____

Answer: soiling index

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Flashcard 166: 1. Identify → _____ 2. Uses → _____

Answer: Kew pattern station Barometer

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Flashcard 167: a window and door of a house should be >_____th of floor area

Answer: 1/5

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Flashcard 168: instrument:_____ Use:_____

Answer: kata thermometer

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Flashcard 169: pre treatment is required for only _____ categories biomedical waste

Answer: yellow f,g and h

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Flashcard 170: dimensions of trench in bangalore method of composting are _____

Answer: 3*5*15-30 feet

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Flashcard 171: 2adcda56ad83444b9af9eff2bc7a4e93-ao-1

Answer: hardness of water

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Flashcard 172: desk in school should be _____ type

Answer: minus

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Flashcard 173: mattresses contaminated with body fluids are segragated into _____ category of BMW

Answer: yellow g

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Flashcard 174: _____ test is a test for chlorination and determines free and combined chlorine together in water

Answer: Orthotolidine (OT)

Flashcard 175: _____ test is a test for chlorination and determines free and combined chlorine separately in water

Answer: Orthotolidine-arsenite (OTA)

Flashcard 176: Chronic _____ exposure can lead to Blackfoot disease (PVD)

Answer: Arsenic

Flashcard 177: _____ disease (Japan), also called as ouch-ouch disease is due to nephrotoxicty caused by Cadmium.

Answer: Itai-itai

Flashcard 178: _____ test, this is used to check whether milk has been pasteurised.

Answer: Phosphatase

Flashcard 179: _____ coliform count detects the presence of E. coli clonies in the drinking water

Answer: Differential

Flashcard 180: _____ E. coli is transmitted by water sources

Answer: Enterotoxigenic

Flashcard 181: Chronic low-dose _____ exposure is associated with Diabetes mellitus

Answer: arsenic

Flashcard 182: _____ or high test hypochlorite (H.T.H.) is a calcium compound that has 60 70% of available chlorine.

Answer: Perchloron

Flashcard 183: Patients get exposed to Aflatoxins produced by _____ by way of eating improperly stored grains and nuts

Answer: Aspergillus

Flashcard 184: Pasteurization is done by _____ method: Heat at 72C for 15-20 seconds

Answer: Flash

Flashcard 185: _____ coliform count detects the presence of coliform bateria clonies in the drinking water

Answer: Presumptive

Flashcard 186: Nowadays, patients typically can get chronically exposed to Arsenic in a couple of different situations, including:(1) - _____ smoke(2) - Herbicides used in vineyards(3) - metal smelting

Answer: cigarette

Flashcard 187: _____ technique is used for defluoridation which involves the addition of lime and alum followed by flocculation, sedimentation and filtration.

Answer: Nalgonda

Flashcard 188: Minimum recommended concentration of _____ chlorine is 0.5 mg/litre for one hour (contact period)

Answer: free

Flashcard 189: _____ embolus is classically seen in decompression sickness (Caisson disease)

Answer: Gas (air)

Flashcard 190: Secondhand smoke increases the risk of respiratory tract illnesses in children, most significantly _____ and asthma

Answer: otitis media

Flashcard 191: In _____ test ,the dye on reduction, passes through a series of colour changes from blue to pink to colourless depending on the degree of contamination of milk

Answer: Resazurin

Flashcard 192: Calcium _____ does not cause hardness of water.

Answer: carbonate

Flashcard 193: Based on their life cycle, _____ zoonoses are diseases that has both a vertebrate host and a non-animal (food, soil/ plants) developmental site/reservoir

Answer: sapro

Flashcard 194: _____ fluorosis is seen at fluoride intake levels of >10mg/L

Answer: Crippling

Flashcard 195: Goggles and face shield from PPE must be disposed in the _____ bin

Answer: red

Flashcard 196: Which form of asbestos is more common?_____

Answer: Serpentine chrysotile

Flashcard 197: Contact period of free chlorine for at least _____ is required to kill bacteria and viruses.

Answer: one hour

Flashcard 198: What is the amount of residual chlorine in PPM for swimming pool?_____

Answer: 1.0

Flashcard 199: The best indicators for routine monitoring of air pollution are sulfur dioxide, _____, and suspended particles.

Answer: smoke

Flashcard 200: The number of air changes in drawing rooms or living rooms must be _____ per hour

Answer: 2 3

Flashcard 201: Which form of asbestos is more pathogenic?_____

Answer: Amphibole

Flashcard 202: _____aerobic digestion of nightsoil in borehole latrine converts it into harmless mass

Answer: An

Flashcard 203: Recent fecal contamination of water is suggested by the presence of Fecal _____

Answer: streptococci/enterococci (bacteria)

Flashcard 204: The depth of a borehole latrine is _____ m

Answer: 5-10

Flashcard 205: The oldest non-service type of latrines in India is the _____ latrine

Answer: borehole

Flashcard 206: Before chlorination, the water to be disinfected must be clear of _____ as it impedes efficient chlorination.

Answer: turbidity

Flashcard 207: What is the amount of residual chlorine in PPM for normal drinking water?_____

Answer: 0.5

Flashcard 208: Which mosquito(s) breed in clean water?_____

Answer: Anopheles

Flashcard 209: Water-_____ diseases are infections that are caused by poor personal hygiene resulting from inadequate water availability

Answer: washed

Flashcard 210: Used mask from PPE must be disposed in the _____ bin

Answer: yellow

Flashcard 211: _____ is the most effective form of chlorine for water disinfection.

Answer: Hypochlorous acid

Flashcard 212: The optimum illumination required in a casual reading is _____ lux.

Answer: 100

Flashcard 213: Used masks, gloves, tissues or swabs contaminated with blood or body fluids of COVID-19 patients, including used syringes, medicines, etc should be discarded in the _____ bag.

Answer: yellow

Flashcard 214: The Horrock s Apparatus is used in disinfection of wells to find out how much _____ is required.

Answer: bleaching powder

Flashcard 215: What is the first method of choice for chlorination?_____

Answer: Chlorine gas

Flashcard 216: The Horrock s Apparatus is used to estimate the _____ of water.

Answer: chlorine demand

Flashcard 217: The point at which the chlorine demand of water is met is called the _____

Answer: breakpoint

Flashcard 218: Head cap and shoe cover from PPE must be disposed in the _____ bin

Answer: yellow

Flashcard 219: Special equipment called _____ is used to dig a borehole latrine

Answer: auger

Flashcard 220: What is the amount of residual chlorine in PPM for killing cyclops?_____

Answer: 5.0

Flashcard 221: Special chlorinating equipments like _____ are used for application of chlorine gas for chlorination.

Answer: Paterson s chloronome

Flashcard 222: The formation of _____ acid during chlorination is predominant, when the pH of the water is around 7

Answer: hypochlorous

Flashcard 223: Development of _____ color in the cup in the Horrock's apparatus indicates free residual chlorine.

Answer: blue

Flashcard 224: _____ reduction test depends on the reduction by bacteria in milk when incubated at 37 C in complete darkness

Answer: Methylene blue

Flashcard 225: Hazmat suit, plastic coverall and gloves from PPE must be disposed in the _____ bin

Answer: red

Flashcard 226: Chronic selenosis is also known as _____ type.

Answer: alkali disease

Flashcard 227: Rhinosporidiosis is a _____borne disease

Answer: water

Flashcard 228: Cadmium and cadmium compounds can lead to _____ cancer

Answer: prostate

Flashcard 229: Which mosquito(s) breed in dirty and polluted water?_____

Answer: Culex

Flashcard 230: First cup which develops blue color in Horrock's apparatus gives an estimate of the amount of bleaching powder needed to disinfect _____ L of the sample water.

Answer: 455

Flashcard 231: _____ of water is the difference between the amount of chlorine added to the water and the amount of residual chlorine remaining at the end of a specific period of contact at a given temperature and pH

Answer: Chlorine demand

Flashcard 232: Epidemic dropsy occurs due to _____ poisoning

Answer: Argemone mexicana

Flashcard 233: _____ is a waste disposal method that packs hazardous materials in containers made of impervious and non-reactive material

Answer: Encapsulation

Flashcard 234: The borehole latrine was introduced in 1930s to combat _____ infections

Answer: hookworm

Flashcard 235: _____ is a form of mycotic poisoning when the fungal toxins contaminate food and cause toxic effects

Answer: Mycotoxicosis

Flashcard 236: Sling psychrometer (also called whirling psychrometer) is used to measure the _____.

Answer: relative humidity

Flashcard 237: Which mosquito(s) breed in artificial collections of water?_____

Answer: Aedes

Flashcard 238: Distant/Late fecal contamination of water is suggested by the presence of Fecal _____

Answer: C. perfringens (bacteria)

Flashcard 239: Chlorine demand or dose of bleaching powder required is given by _____ g for 455 liters of water; where 'n' is the position of cup which developed blue colour in Horrock's apparatus

Answer: (n x 2)

Flashcard 240: _____ is the number of mosquitoes per man- hour-catch

Answer: Mosquito Density

Flashcard 241: Disposable linen gown from PPE must be disposed in the _____ bin

Answer: yellow

Flashcard 242: _____ fluorosis is seen at fluoride intake levels of 1.5mg/L

Answer: Dental

Flashcard 243: _____ counts provide an estimate of the general bacterial purity of water.

Answer: Colony

Flashcard 244: The IPCS _____ Programme is a global endeavour to promote chemical safety through the establishment and strengthening of poison centres.

Answer: INTOX

Flashcard 245: The detection of _____ provides definitive proof of fecal contamination of water.

Answer: E.coli

Flashcard 246: Expired cytotoxic drugs and items contaminated with cytotoxic drugs are best discarded by _____

Answer: incineration

Flashcard 247: The aim of the _____ protocol is to regulate the production and consumption of _____ depleting substances

Answer: Montreal; ozone

Flashcard 248: The most suitable method for removing microbial contaminants quickly and efficiently by chemical coagulation and sedimentation is _____ filters.

Answer: rapid sand

Flashcard 249: The ideal retention period for septic tank is _____ hrs.

Answer: 24

Flashcard 250: The aim of the _____ protocol is to regulate the production and consumption of _____ depleting substances

Answer: Montreal; ozone

Flashcard 251: _____ control is the best approach to control arthropods.

Answer: Environmental

Flashcard 252: The given plant is _____(Chrysanthemum cinerariafolium) whose extract _____ is used as a space spray against adult mosquitos

Answer: pyrethrum; pyrethrin

Flashcard 253: _____ method, also called the hot fermentation process is an anaerobic method of composting that is used for disposing of both solid waste and nightsoil (excreta).

Answer: Bangalore

Flashcard 254: Detection of contamination of mustard oil with argemone oil can be done by _____ test.

Answer: Nitric acid

Flashcard 255: _____ is the process of mixing biomedical waste with non-toxic substances to reduce the toxicity of the waste

Answer: Inertization

Flashcard 256: _____ Thermometer is used to record low air velocity.

Answer: Kata

Flashcard 257: The soiling index or smoke index is an indicator of _____ pollution.

Answer: air