E.Coli & Jar Test

Pick which glassware you will use to fill in your wastewater sample for the JAR TEST METHOD.

• 200ml Beaker

• 1L Volumetric Flask

• 1000ml Beaker

• 2L Beaker

Choose the correct setting for JAR TEST METHOD

• 30rpm for 15min - 20min rest - 80rpm for 1min

• 80rpm for 15min - 20min rest - 30rpm for 1min

• 30rpm for 15mins - 80rpm for 1 mins - 20min rest

• 80rpm for 1min - 30rpm for 15min - 20min rest

For a jar test, initial pH of your wastewater sample was measured at pH6.5. You are required to adjust the pH to pH8.5. What chemical best added into your sample?

• Concentrated Sulfuric Acid

• Concentrated Sodium Hydroxide

• 1M Acetic Acid

• 1M Sodium Hydroxide

 Is  E. coli is a bacteria or a virus ?

• A bacteria
• A virus

Which activity is not allowed in the lab?

• Eating

• Drinking

• Wearing slippers

• All of the above

Which Personal Protective Equipment (PPE) is required when you are doing the experiment in Water and Waste Teaching Lab?

• Lab gloves

• Safety goggles

• Lab coat

• All of the above