1.3. Department of Chemical Engineering

Try these first

1. 1.

   What does CPCB stand for?

   Hint

   Think about the organization responsible for setting water quality standards.

2. 2.

   What is a colony-forming unit (CFU)?

   Hint

   It's a measure used in microbiology related to visible colonies.

3. 3.

   What is the CPCB standard for microorganisms in water?

   • 1 per 100 ml
   • 5 per 100 ml
   • 10 per 100 ml

   Hint

   Recall the specific value mentioned in the lectures.

4. 4.

   True or False: Non-viable microorganisms can still cause infections.

   • True
   • False

   Hint

   Think about the meaning of 'non-viable.'

5. 5.

   Design a protocol to test a water sample with an unknown turbidity level for microbial contamination. Include all necessary steps and methodologies.

   Hint

   Think about how each step contributes to a thorough assessment of the sample.

6. 6.

   You have a water sample that tests high in CFUs. Discuss how you would identify if the microorganisms present are pathogenic or not.

   Hint

   Focus on methods that help identify types of bacteria in cultures.