Environmental Health — Flashcards

Flashcard 111: air flow in plenum is from _____

Answer: outside to inside

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Flashcard 112: b0ea78eb314b441cb9f15880b58291d2-ao-1

Answer: excreta disposal in unsewered areas

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Flashcard 113: 3323f70f79e14b3cbe3e2902781bf872-ao-2

Answer: sand filters

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Flashcard 114: bleaching powder gives _____% chlorine

Answer: 33

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Flashcard 115: _____ is used in the coliform test

Answer: McCrady table

Flashcard 116: Identify this apparatus used for water disinfection: _____

Answer: Horrock's Apparatus

Flashcard 117: 125d773b33354caf968a6f58399e48a9-ao-4

Answer: day light factor

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

Answer: 50

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Flashcard 119: f88ddafee050488590dfb35b04ed01d4-ao-3

Answer: safe water qualities

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Flashcard 120: _____ layer is the heart of slow sand filters

Answer: Schmutzdecke