Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
What do the reagent-grade water specifications type I, A) Type I has no detectable concentration of the compound to be analyzed
II, III indicate?
A) Type I has no detectable concentration of the
compound to be analyzed
B) Type II is suitable for all analysis
C) Type III is the purest
D) Type III is used only for cleaning
What is a reagent? C) A pure chemical substance used to create new products for the purpose of
A) Any chemical used in water treatment testing, measuring, or detecting in other substances
B) A chemical used to preserve samples
C) A pure chemical substance used to create new
products for the purpose of testing, measuring, or
detecting in other substances
D) A chemical used to disinfect water
What would be the most appropriate piece of B) Volumetric, Class A
glassware for preparing laboratory solutions?
A) Beaker
B) Volumetric, Class A
C) Erlenmeyer flask
D) Graduated cylinder
Which glassware will most accurately measure 500 mL B) Volumetric flask
of a fluid?
A) Graduated cylinder
B) Volumetric flask
C) Beaker
D) Erlenmeyer flask
Glassware used as a reaction vessel? C) Boiling flask
A) Volumetric flask
B) Erlenmeyer flask
C) Boiling flask
D) Beaker
Glassware good for repetitive measurements? D) Buret
A) Volumetric flask
B) Beaker
C) Graduated
D) Buret
, Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
Glassware used for mixing and holding samples? Not A) Beaker
the best for measuring volumes.
A) Beaker
B) Erlenmeyer flask
C) Volumetric flask
D) Buret
Glassware used for distilling or digesting samples?] C) Boiling flasks
A) Beaker
B) Erlenmeyer flask
C) Boiling flasks
D) Volumetric flask
Laboratory glassware that meets US specifications for C) Class A
certified glassware is designated as:
A) Class B
B) Class C
C) Class A
D) Class D
Accurately calibrated glassware for precise A) Volumetric glassware
measurements of volume is known as:
A) Volumetric glassware
B) Graduated glassware
C) Disposable glassware
D) Standard glassware
Volumetric glassware is typically calibrated at what B) 20°C
temperature?
A) 0°C
B) 20°C
C) 25°C
D) 30°C
Changes in ambient temperature result in changes in C) 20°C
the capacity of volumetric glassware. Most volumetric
glassware is calibrated at:
A) 0°C
B) 15°C
C) 20°C
D) 25°C
, Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
What are used to deliver accurate volumes and range in C) Pipets
size from 0.1 to 100 mL?
A) Beakers
B) Graduated cylinders
C) Pipets
D) Funnels
Pipets used to deliver one specific volume are: B) Volumetric pipets (calibrated to deliver a fixed volume)
A) Graduated pipets
B) Volumetric pipets (calibrated to deliver a fixed
volume)
C) Transfer pipets
D) Disposable pipets
Pipets that are graduated from a zero mark near the top B) Serological pipets
to the tip are called:
A) Volumetric pipets
B) Serological pipets
C) Mohr pipets
D) Burets
How do we know that a pipet is a "blow-out" pipet? B) Colored or frosted rings at the top of the pipet
A) It has a long tip
B) Colored or frosted rings at the top of the pipet
C) It is made of plastic
D) It has a bulb attached
Which pipet should never be blown out? A) Volumetric pipet
A) Volumetric pipet
B) Graduated pipet
C) Pasteur pipet
D) Transfer pipet
Pipets that require the small amount of liquid remaining A) A frosted band near the tip
in the tip to be blown out are identified by:
A) A frosted band near the tip
B) A colored band near the tip
C) A narrow tip
D) A wider tip
To correctly read volumetric glassware, which part of C) Bottom
the meniscus should be tangent to the calibration mark
when viewed at eye level?
A) Top
B) Middle
C) Bottom
D) Side
, Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
The correct procedure for delivering a solution from a B) Keep the tip of the pipet in contact with the receiving vessel for several
volumetric pipet is to hold the pipet vertically and: seconds after the free flow of liquid has stopped
A) Quickly release the liquid
B) Keep the tip of the pipet in contact with the
receiving vessel for several seconds after the free flow
of liquid has stopped
C) Blow out the remaining liquid
D) Shake the pipet to remove all liquid
What do the initials TD stand for? B) To Deliver
A) To Dilute
B) To Deliver
C) To Dispense
D) Total Dilution
What do the initials TC stand for? C) To Contain
A) To Dilute
B) To Dispense
C) To Contain
D) Total Capacity
Are volumetric flasks more commonly calibrated as TD C) To Contain
or TC?
A) To Deliver (TD)
B) To Contain (TC)
C) Both equally
D) Neither
When diluting acid with water: B) Add acid to water
A) Add water to acid
B) Add acid to water
C) Add acid and water simultaneously
D) No specific order needed
The correct procedure for removing contaminated C) Wash the gloves before removal and then wash your hands after
gloves is to:
A) Remove gloves without washing
B) Wash hands before removing gloves
C) Wash the gloves before removal and then wash your
hands after
D) Dispose gloves without washing
Dispose of cracked or broken glassware: B) In waste bins marked specifically for glass disposal
A) In regular trash bins
B) In waste bins marked specifically for glass disposal
C) Reuse after fire polishing
D) Recycle as plastic
MSDS stands for: A) Material safety data sheets
A) Material safety data sheets
B) Minimum safety data standards
C) Material safety design system
D) Maximum safety data sheets
What do the reagent-grade water specifications type I, A) Type I has no detectable concentration of the compound to be analyzed
II, III indicate?
A) Type I has no detectable concentration of the
compound to be analyzed
B) Type II is suitable for all analysis
C) Type III is the purest
D) Type III is used only for cleaning
What is a reagent? C) A pure chemical substance used to create new products for the purpose of
A) Any chemical used in water treatment testing, measuring, or detecting in other substances
B) A chemical used to preserve samples
C) A pure chemical substance used to create new
products for the purpose of testing, measuring, or
detecting in other substances
D) A chemical used to disinfect water
What would be the most appropriate piece of B) Volumetric, Class A
glassware for preparing laboratory solutions?
A) Beaker
B) Volumetric, Class A
C) Erlenmeyer flask
D) Graduated cylinder
Which glassware will most accurately measure 500 mL B) Volumetric flask
of a fluid?
A) Graduated cylinder
B) Volumetric flask
C) Beaker
D) Erlenmeyer flask
Glassware used as a reaction vessel? C) Boiling flask
A) Volumetric flask
B) Erlenmeyer flask
C) Boiling flask
D) Beaker
Glassware good for repetitive measurements? D) Buret
A) Volumetric flask
B) Beaker
C) Graduated
D) Buret
, Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
Glassware used for mixing and holding samples? Not A) Beaker
the best for measuring volumes.
A) Beaker
B) Erlenmeyer flask
C) Volumetric flask
D) Buret
Glassware used for distilling or digesting samples?] C) Boiling flasks
A) Beaker
B) Erlenmeyer flask
C) Boiling flasks
D) Volumetric flask
Laboratory glassware that meets US specifications for C) Class A
certified glassware is designated as:
A) Class B
B) Class C
C) Class A
D) Class D
Accurately calibrated glassware for precise A) Volumetric glassware
measurements of volume is known as:
A) Volumetric glassware
B) Graduated glassware
C) Disposable glassware
D) Standard glassware
Volumetric glassware is typically calibrated at what B) 20°C
temperature?
A) 0°C
B) 20°C
C) 25°C
D) 30°C
Changes in ambient temperature result in changes in C) 20°C
the capacity of volumetric glassware. Most volumetric
glassware is calibrated at:
A) 0°C
B) 15°C
C) 20°C
D) 25°C
, Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
What are used to deliver accurate volumes and range in C) Pipets
size from 0.1 to 100 mL?
A) Beakers
B) Graduated cylinders
C) Pipets
D) Funnels
Pipets used to deliver one specific volume are: B) Volumetric pipets (calibrated to deliver a fixed volume)
A) Graduated pipets
B) Volumetric pipets (calibrated to deliver a fixed
volume)
C) Transfer pipets
D) Disposable pipets
Pipets that are graduated from a zero mark near the top B) Serological pipets
to the tip are called:
A) Volumetric pipets
B) Serological pipets
C) Mohr pipets
D) Burets
How do we know that a pipet is a "blow-out" pipet? B) Colored or frosted rings at the top of the pipet
A) It has a long tip
B) Colored or frosted rings at the top of the pipet
C) It is made of plastic
D) It has a bulb attached
Which pipet should never be blown out? A) Volumetric pipet
A) Volumetric pipet
B) Graduated pipet
C) Pasteur pipet
D) Transfer pipet
Pipets that require the small amount of liquid remaining A) A frosted band near the tip
in the tip to be blown out are identified by:
A) A frosted band near the tip
B) A colored band near the tip
C) A narrow tip
D) A wider tip
To correctly read volumetric glassware, which part of C) Bottom
the meniscus should be tangent to the calibration mark
when viewed at eye level?
A) Top
B) Middle
C) Bottom
D) Side
, Georgia Drinking Water & Wastewater Laboratory Analyst | Flashcard Deck Exam Prep
The correct procedure for delivering a solution from a B) Keep the tip of the pipet in contact with the receiving vessel for several
volumetric pipet is to hold the pipet vertically and: seconds after the free flow of liquid has stopped
A) Quickly release the liquid
B) Keep the tip of the pipet in contact with the
receiving vessel for several seconds after the free flow
of liquid has stopped
C) Blow out the remaining liquid
D) Shake the pipet to remove all liquid
What do the initials TD stand for? B) To Deliver
A) To Dilute
B) To Deliver
C) To Dispense
D) Total Dilution
What do the initials TC stand for? C) To Contain
A) To Dilute
B) To Dispense
C) To Contain
D) Total Capacity
Are volumetric flasks more commonly calibrated as TD C) To Contain
or TC?
A) To Deliver (TD)
B) To Contain (TC)
C) Both equally
D) Neither
When diluting acid with water: B) Add acid to water
A) Add water to acid
B) Add acid to water
C) Add acid and water simultaneously
D) No specific order needed
The correct procedure for removing contaminated C) Wash the gloves before removal and then wash your hands after
gloves is to:
A) Remove gloves without washing
B) Wash hands before removing gloves
C) Wash the gloves before removal and then wash your
hands after
D) Dispose gloves without washing
Dispose of cracked or broken glassware: B) In waste bins marked specifically for glass disposal
A) In regular trash bins
B) In waste bins marked specifically for glass disposal
C) Reuse after fire polishing
D) Recycle as plastic
MSDS stands for: A) Material safety data sheets
A) Material safety data sheets
B) Minimum safety data standards
C) Material safety design system
D) Maximum safety data sheets
