Environmental Health — Flashcards

Flashcard 141: coliform test is done to check _____ in water

Answer: E.coli

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Flashcard 142: _____ are segregated into the Yellow category of BMW.

Answer: Discarded blood and PPE

Extra: Bio-Medical Waste Management Rules 2016.

Flashcard 143: primary treatment at sewage treatment plant includes which stages

Answer: screening grit chamber primary sedimentation tank

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Flashcard 144: _____ are segregated in the Yellow (f) category of BMW

Answer: Silver X-ray film fluid, disinfectants, and aspirated body fluids

Extra: Liquid waste (Chemical Liquid Waste) including disinfectants and Silver X-ray film developing liquid are segregated in the Yellow category and pre-treated before being discharged into drains.

Flashcard 145: 125d773b33354caf968a6f58399e48a9-ao-2

Answer: day light factor

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Flashcard 146: Parameters of Effective Temperature (ET) are:

Answer: 1. Air temperature 2. Humidity 3. Air movement

Extra: Effective temperature (ET) is a composite index that combines the effects of temperature, humidity, and air movement. Note: If radiant heat (Globe thermometer) is also included, it is called **Corrected Effective Temperature (CET)**. Cooling power of air is a separate measurement taken by a Kata thermometer.

Flashcard 147: Maximum allowed water turbidity is _____ NTU

Answer: 5

Extra: According to BIS standards (IS 10500:2012): - Acceptable limit: 1 NTU - Permissible limit (Maximum allowed): 5 NTU

Flashcard 148: disadvantage of deep well is _____

Answer: hard water

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Flashcard 149: Effective size of sand in **rapid sand filter** is _____ mm and in **slow sand filter** is _____ mm

Answer: 0.4-0.7

Flashcard 150: 568ee3640c184fbaa2379da689136973-ao-1

Answer: trench method of solid waste disposal

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