AALSO Water Quality Level 1 Exam
Questions and Answers 100% Pass
Define "absorption spectroscopy" - ✔✔An analytical method that uses the wavelength
dependent absorption characteristics of materials to identify and quantify specific
substances
Define "accuracy" - ✔✔The degree of agreement between the experimental result and
the true value
Define "administrative controls" - ✔✔Changes in work procedures with the goal of
reducing the duration, frequency, and severity of exposure to hazardous chemicals or
situations
Define "alkalinity" (water quality definition) - ✔✔A measure of water's resistance to
changes in pH or its buffering capacity
What does AOB stand for? - ✔✔Ammonia oxidizing bacteria
Define "ammonia oxidizing bacteria" - ✔✔Nitrifying bacteria that promote oxidation of
ammonia into nitrite
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, What does AOD stand for? - ✔✔Applied ozone dose
Define "applied ozone dose" - ✔✔The quantity of ozone applied for a given flow, or the
required ozone production rate
Define "DPD Method" - ✔✔A method of measuring the chlorine residual in water
Define "engineering controls" - ✔✔Methods that are built into the design of a plant,
equipment, or process to minimize the hazard
What does GHS stand for? - ✔✔Globally Harmonized System
Define "Globally Harmonized System" - ✔✔An international system of classification
and labelling of chemicals
Define "Laboratory Fortified Blank" - ✔✔A solution of analyte-free water with known
amount of target analyte
Define "Laboratory fortified matrix" - ✔✔An aliquot of sample with the addition of
known amount of target analyte prior to sample preparation and analysis
Define "Laboratory fortified matrix duplicate" - ✔✔A duplicate of the matrix spike also
used to assess the precision and bias of a method in a given sample matrix
Define "Matrix" (water quality definition) - ✔✔The components of a sample other than
the analyte of interest
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 2
Questions and Answers 100% Pass
Define "absorption spectroscopy" - ✔✔An analytical method that uses the wavelength
dependent absorption characteristics of materials to identify and quantify specific
substances
Define "accuracy" - ✔✔The degree of agreement between the experimental result and
the true value
Define "administrative controls" - ✔✔Changes in work procedures with the goal of
reducing the duration, frequency, and severity of exposure to hazardous chemicals or
situations
Define "alkalinity" (water quality definition) - ✔✔A measure of water's resistance to
changes in pH or its buffering capacity
What does AOB stand for? - ✔✔Ammonia oxidizing bacteria
Define "ammonia oxidizing bacteria" - ✔✔Nitrifying bacteria that promote oxidation of
ammonia into nitrite
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 1
, What does AOD stand for? - ✔✔Applied ozone dose
Define "applied ozone dose" - ✔✔The quantity of ozone applied for a given flow, or the
required ozone production rate
Define "DPD Method" - ✔✔A method of measuring the chlorine residual in water
Define "engineering controls" - ✔✔Methods that are built into the design of a plant,
equipment, or process to minimize the hazard
What does GHS stand for? - ✔✔Globally Harmonized System
Define "Globally Harmonized System" - ✔✔An international system of classification
and labelling of chemicals
Define "Laboratory Fortified Blank" - ✔✔A solution of analyte-free water with known
amount of target analyte
Define "Laboratory fortified matrix" - ✔✔An aliquot of sample with the addition of
known amount of target analyte prior to sample preparation and analysis
Define "Laboratory fortified matrix duplicate" - ✔✔A duplicate of the matrix spike also
used to assess the precision and bias of a method in a given sample matrix
Define "Matrix" (water quality definition) - ✔✔The components of a sample other than
the analyte of interest
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 2
