AALSO Water Quality Level 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Define "absorption spectroscopy" - CORRECT ANSWER - An analytical method that uses
the wavelength dependent absorption characteristics of materials to identify and quantify specific
substances
Define "accuracy" - CORRECT ANSWER - The degree of agreement between the
experimental result and the true value
Define "administrative controls" - CORRECT ANSWER - 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) - CORRECT ANSWER - A measure of water's
resistance to changes in pH or its buffering capacity
What does AOB stand for? - CORRECT ANSWER - Ammonia oxidizing bacteria
Define "ammonia oxidizing bacteria" - CORRECT ANSWER - Nitrifying bacteria that
promote oxidation of ammonia into nitrite
What does AOD stand for? - CORRECT ANSWER - Applied ozone dose
Define "applied ozone dose" - CORRECT ANSWER - The quantity of ozone applied for a
given flow, or the required ozone production rate
Define "DPD Method" - CORRECT ANSWER - A method of measuring the chlorine residual
in water
, Define "engineering controls" - CORRECT ANSWER - Methods that are built into the design
of a plant, equipment, or process to minimize the hazard
What does GHS stand for? - CORRECT ANSWER - Globally Harmonized System
Define "Globally Harmonized System" - CORRECT ANSWER - An international system of
classification and labelling of chemicals
Define "Laboratory Fortified Blank" - CORRECT ANSWER - A solution of analyte-free
water with known amount of target analyte
Define "Laboratory fortified matrix" - CORRECT ANSWER - An aliquot of sample with the
addition of known amount of target analyte prior to sample preparation and analysis
Define "Laboratory fortified matrix duplicate" - CORRECT ANSWER - 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) - CORRECT ANSWER - The components of a
sample other than the analyte of interest
Define "Matrix duplicate" - CORRECT ANSWER - A split sample used to assess the
precision of a method in a given sample matrix
What does MPN stand for? - CORRECT ANSWER - Most Probable Number
What is MPN used for? - CORRECT ANSWER - Quantifying an estimated concentration of
bacteria
ACTUAL Exam Questions and CORRECT
Answers
Define "absorption spectroscopy" - CORRECT ANSWER - An analytical method that uses
the wavelength dependent absorption characteristics of materials to identify and quantify specific
substances
Define "accuracy" - CORRECT ANSWER - The degree of agreement between the
experimental result and the true value
Define "administrative controls" - CORRECT ANSWER - 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) - CORRECT ANSWER - A measure of water's
resistance to changes in pH or its buffering capacity
What does AOB stand for? - CORRECT ANSWER - Ammonia oxidizing bacteria
Define "ammonia oxidizing bacteria" - CORRECT ANSWER - Nitrifying bacteria that
promote oxidation of ammonia into nitrite
What does AOD stand for? - CORRECT ANSWER - Applied ozone dose
Define "applied ozone dose" - CORRECT ANSWER - The quantity of ozone applied for a
given flow, or the required ozone production rate
Define "DPD Method" - CORRECT ANSWER - A method of measuring the chlorine residual
in water
, Define "engineering controls" - CORRECT ANSWER - Methods that are built into the design
of a plant, equipment, or process to minimize the hazard
What does GHS stand for? - CORRECT ANSWER - Globally Harmonized System
Define "Globally Harmonized System" - CORRECT ANSWER - An international system of
classification and labelling of chemicals
Define "Laboratory Fortified Blank" - CORRECT ANSWER - A solution of analyte-free
water with known amount of target analyte
Define "Laboratory fortified matrix" - CORRECT ANSWER - An aliquot of sample with the
addition of known amount of target analyte prior to sample preparation and analysis
Define "Laboratory fortified matrix duplicate" - CORRECT ANSWER - 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) - CORRECT ANSWER - The components of a
sample other than the analyte of interest
Define "Matrix duplicate" - CORRECT ANSWER - A split sample used to assess the
precision of a method in a given sample matrix
What does MPN stand for? - CORRECT ANSWER - Most Probable Number
What is MPN used for? - CORRECT ANSWER - Quantifying an estimated concentration of
bacteria
