Water Quality Technician – AALSO
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Salinity is commonly measured using which unit? - CORRECT ANSWER - ppt
How would you prepare 100 mL of 0.0400 M KCl from 0.200 M KCl stock solution? -
CORRECT ANSWER - Withdraw 20.0 mL of 0.200 M KCl, place it in a partially filled 100
mL volumetric flask and add water until the final volume is 100 mL.
Which of the following is not considered Laboratory Personal Protective Equipment (PPE)? -
CORRECT ANSWER - Hair Tie
Which of the following is a concern after a chemical spill? - CORRECT ANSWER -
Environmental release
Adequate engineering controls or PPE to protect staff during cleanup
Slip or Trip Hazard
Where should flammable liquids be stored? - CORRECT ANSWER - In an approved
flammable liquid storage cabinet
If a water quality laboratory technician records data incorrectly, how should they respond? -
CORRECT ANSWER - Draw a single line through the entry making sure that the inaccurate
information is still legible. Initial and date the entry. State the reason for the error. Document the
correct information.
Why should you never add water to acid? - CORRECT ANSWER - The exothermic reaction
could possibly splash the content (acid) out of the container.
Which of the following is not a disinfection byproduct of chlorine disinfection? - CORRECT
ANSWER - Sodium hypochlorite
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Salinity is commonly measured using which unit? - CORRECT ANSWER - ppt
How would you prepare 100 mL of 0.0400 M KCl from 0.200 M KCl stock solution? -
CORRECT ANSWER - Withdraw 20.0 mL of 0.200 M KCl, place it in a partially filled 100
mL volumetric flask and add water until the final volume is 100 mL.
Which of the following is not considered Laboratory Personal Protective Equipment (PPE)? -
CORRECT ANSWER - Hair Tie
Which of the following is a concern after a chemical spill? - CORRECT ANSWER -
Environmental release
Adequate engineering controls or PPE to protect staff during cleanup
Slip or Trip Hazard
Where should flammable liquids be stored? - CORRECT ANSWER - In an approved
flammable liquid storage cabinet
If a water quality laboratory technician records data incorrectly, how should they respond? -
CORRECT ANSWER - Draw a single line through the entry making sure that the inaccurate
information is still legible. Initial and date the entry. State the reason for the error. Document the
correct information.
Why should you never add water to acid? - CORRECT ANSWER - The exothermic reaction
could possibly splash the content (acid) out of the container.
Which of the following is not a disinfection byproduct of chlorine disinfection? - CORRECT
ANSWER - Sodium hypochlorite
