Final Quiz (Lab 3c)

Module 1: What characteristic did we use to determine inoculum:substrate ratio and FW:SS ratios?

• Volume

• Mass

• Volatile Solids

• Weight

Module 1: What FW:SS ratio was not tested?

• 0:0

• 50:50

• 100:0

• 0:100

Module 1: What was the minimum alkalinity that we adjusted our bottles to?

• 1000 mg/L as CaCO3

• 2000 mg/L as CaCO3

• 5000 mg/L as CaCO3

• 2000 eq/L

Module 1: What gas contributed most to the smell of the BMP bottles?

• Oxygen

• Hydrogen Sulfide

• Methane

• Carbon Dioxide

Module 1 (extra hard): How does gas chromatography work?

• Our GSI smells the concentration of methane

• A carrier gas transports the sample through a column that heats and separates the sample based on chemical bonds. The time range that a volume of gas exits the chamber tells you the gas type.

• Gas is injected into a column that is wound in a spiral. The gas is cooled throughout the column. The temp that the gas becomes liquid tells you the vapor point so you can determine the gas type.

• A carrier gas transports a gas sample through a spiral tube with pores of increasing size. The location that the gas leaves the tube tells you the size of the molecule, which can be used to find the gas type.

Module 2: How are air changes per hour calculated?

• Q/V = -ln[(C_end-C_in)/(C_start-C_in)]/(t_end-t_start)

• ACH = ln(C_end/C_start)/(t_end-t_start)

• Q/V = ln(C_out-C_in)/(t_end-t_start)

• ACH = -ln[(C_in-C_end)/(C_out)]/(t_end-t_start)

Module 2: Which filters were used for Lab 2b?

• A 4" MERV 13 and 4 2" MERV 8s

• A 2" MERV 13 and 4 4" MERV 8s

• A 4" MERV 8 and 4 2" MERV 13s

• A 2" MERV 8 and 4 4" MERV 13s

Module 2: What is the name of the box-filter that you made?

• Corsi-Rosenthal Box

• Corgi-Rosenberg Box

• Cortsy-Robinson Box

• Corsi-Richardson Box

Module 2: What does MERV stand for?

• MERVelous performance

• Minimum Efficacy Reporting Volume

• Maximum Effectiveness Reporting Value

• Minimum Efficiency Reporting Value

Module 2: What is the maximum PM that your sensor considered green/good?

• 12 mg/L

• 12 ug/m^3

• 55 mg/L

• 55 ug/m^3