Environmental Health — Flashcards

Flashcard 141: primary treatment at sewage treatment plant includes which stages

Answer: screening grit chamber primary sedimentation tank

Extra: 

Flashcard 142: 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 143: In the **Holder method** of pasteurisation, milk is heated to _____°C for 30 minutes.

Answer: 63–66

Extra: The milk is rapidly cooled to 5°C or below after heating. Note: - Holder Method: 63–66°C for 30 minutes. - Flash (HTST) Method: 72°C for 15 seconds.

Flashcard 144: Instrument: _____ Use: To measure humidity

Answer: Psychrometer

Extra: The psychrometer (e.g., sling psychrometer) consists of two thermometers: a dry-bulb and a wet-bulb thermometer. The difference in their readings is used to determine relative humidity.

Flashcard 145: _____ 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 146: coliform test is done to check _____ in water

Answer: E.coli

Extra: 

Flashcard 147: _____ are segregated into the Yellow category of BMW.

Answer: Discarded blood and PPE

Extra: Bio-Medical Waste Management Rules 2016.

Flashcard 148: white bag includes _____ in biomedical waste management

Answer: needle,metal sharps 

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

Answer: infectious anatomical waste

Extra: 

Flashcard 150: The **comfortable** relative humidity ranges from _____%

Answer: 35-65