Environmental Health — Flashcards

Flashcard 111: Identify this apparatus used for water disinfection: _____

Answer: Horrock's Apparatus

Flashcard 112: air flow in plenum is from _____

Answer: outside to inside

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Flashcard 113: 125d773b33354caf968a6f58399e48a9-ao-4

Answer: day light factor

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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: f88ddafee050488590dfb35b04ed01d4-ao-3

Answer: safe water qualities

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Flashcard 117: b0ea78eb314b441cb9f15880b58291d2-ao-1

Answer: excreta disposal in unsewered areas

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Flashcard 118: _____ index measures particulate matter in air

Answer: Soiling

Extra: The Soiling Index (also known as the Coefficient of Haze) is an indicator used to measure the density of suspended particulate matter (specifically smoke) in the air. Grit and dust are typically measured using a deposit gauge and expressed by weight, rather than an index.

Flashcard 119: corrected effective air temperature(CET)= effective air temperature(AET) + _____

Answer: radiant heat

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Flashcard 120: temperature is kept at _____ degree celsius for BOD measurement

Answer: 20

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