Questions and 100% Correct Solutions
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Q1: What are pathogens?
A1: Disease-causing microorganisms that are passed into water through feces.
Q2: What is a microorganism?
A2: Any living thing too small to see with the naked eye.
Q3: What are viruses?
A3: Viruses are 10 to 100 times smaller than bacteria and can only function and reproduce in
living cells.
Q4: What are bacteria?
A4: Single-celled organisms.
Q5: What do bacteria, microorganisms, and viruses have in common?
A5: They are all different types of pathogens.
Q6: What is the weight of wastewater?
A6: 8.34 pounds per gallon.
Q7: What are the three main areas of wastewater?
A7: Physical, Chemical, and Bacteriological.
, Q8: What does TSS stand for?
A8: Total Suspended Solids.
Q9: What does TDS stand for?
A9: Total Dissolved Solids.
Q10: What do TSS and TDS added together equal?
A10: Total Solids (TSS + TDS = Total Solids).
Q11: What are organic materials?
A11: Carbohydrates, proteins, and fats.
Q12: Which organic material stabilizes first?
A12: Carbohydrates.
Q13: Which organic material is more difficult to stabilize?
A13: Proteins.
Q14: Which organic material is the most difficult to stabilize?
A14: Fats.
Q15: What is the formula for area?
A15: Area = Length x Width.
Q16: What is the formula for area in a circle?
A16: A = πr².