Water Operator Grade IV Certification - copy (awwa?) UPDATED
ACTUAL Questions and CORRECT Answers
Question: The main objective of a safety program is to _ _.
Correct Answer: prevent accidents
Question: _, _ _ is the most appropriate person for evaluating a potential safety hazard.
Correct Answer: you the operator
Question: _, _ _ has the most to gain from an effective safety program.
Correct Answer: you the operator
Question: For a water system to have an effective safety program, the most important item that operators
can do is _ _ _ _ (_).
Correct Answer: commit to the program (attitude)
Question: Excavated material, tools, and other equipment needs to be placed at least __ feet away from the
surface edge of an excavation.
Correct Answer: 2
Question: If the trench is _ feet deep or more it will require a fixed means of egress.
Correct Answer: 4
Question: For a trench, exits must be provided at least every _ feet.
Correct Answer: 25
Question: Ladders must be secured and extend a minimum of _ feet above the landing.
Correct Answer: 3
Question: If a trench is _ feet deep or more it will require some means of protection
Correct Answer: 5
Question: Why is shoring used in trenches? To prevent _ and _.
Correct Answer: injury death
Question: A flagger is required at least _ feet in front of an excavation site.
Correct Answer: 100
Question: _ is the most common combustible gas.
Correct Answer: Methane
Question: One volume of liquid chlorine will expand _ to _ volumes of gaseous chlorine. This means that it
is important to rotate the tank so the rupture is at the top.
Correct Answer: 450 460
Question: Chlorine gas is _ times denser than air.
Correct Answer: 2.5
,Question: Chlorine containers/cylinders are filled to _ % of capacity.
Correct Answer: 25
Question: To check for leaks use an ammonia solution. A _ _ will appear if there is a chlorine leak.
Correct Answer: white cloud
Question: Repair Kit _ is used for for 150 lb. cylinders.
Correct Answer: a
Question: Kit _ is used for ton containers.
Correct Answer: b
Question: A SCBA air supply will last _ on individual breathing patterns while under stress.
Correct Answer: depending
Question: The most dangerous type of chlorine incident is _ or _ of a cylinder.
Correct Answer: rupture failure
Question: Fusible Plugs are used to prevent tank rupture for controlled leak situations and melt between _
to _ Fahrenheit.
Correct Answer: 157 160
Question: Ton containers have _ fusible plugs mounted on each end.
Correct Answer: 3
Question: Exhaust fans should be ducted at _ _.
Correct Answer: floor level
Question: Fresh air intake are ducted at the _.
Correct Answer: ceiling
Question: _ _, _ _, _ _, _ _, and _ _ are recommended safety equipment when working with fluoride
chemicals.
Correct Answer: chemical goggles respirator mask rubber gloves rubber apron rubber boots
Question: Use _ _ to neutralize acid spills. This chemical is also know by its household name _ _.
Correct Answer: sodium bicarbonate baking soda
Question: What are some potential hazards in confined spaces? _ gases and/or _ oxygen content _ _ of
electrical equipment _, _, and _.
Correct Answer: toxic low flooding condensation slips trips falls
Question: An atmosphere that has _ oxygen by volume is considered oxygen deficient.
Correct Answer: 19.5
Question: _ _ is the procedure that should be followed every time when working with electrical equipment.
This prevents accidental energizing of equipment.
Correct Answer: Lockout Tag
, Question: Lockout tags can be removed _ _ _ _ _ _ _ _.
Correct Answer: only by the person who put it on
Question: _ _ and _ two types of electrical safety devices found in control panels.
Correct Answer: circuit breakers fuses
Question: Vulnerability Assessments are required for systems serving populations of _ or more.
Correct Answer: 3300
Question: _, _, and _ are the three stages of threat management.
Correct Answer: possible credible confirmatory
Question: Water systems are concerned about Smallpox because it is both a _ and a _ that has a high rate of
_ transmission.
Correct Answer: pathogen biotoxin secondary
Question: What are the three FEMA disaster classifications?
Correct Answer: What are the three FEMA disaster classifications?
Question: _ is legislation requiring utilities to report chemicals stored on site.
Correct Answer: sara
Question: Password protect and change password every _ days.
Correct Answer: 90
Question: Pathogenic are _ causing organisms.
Correct Answer: disease
Question: Organisms that don't cause disease are _-_.
Correct Answer: non-pathogenic
Question: _ is a process to kill pathogenic organisms.
Correct Answer: disinfection
Question: _ is a is a natural component of the earth's upper atmosphere, where it is primarily formed photo
chemically.
Correct Answer: ozone
Question: Ozone doesn't leave a lasting _.
Correct Answer: residual
Question: What is the molecular formula for ozone?
Correct Answer: o3
Question: What is the molecular structure of oxygen gas?
Correct Answer: o2.
Question: UV operates best when Suspended Solids is <_ - _ mg/L & Turbidity is <_ - _ NTU.
Correct Answer: 10 15 5 10
ACTUAL Questions and CORRECT Answers
Question: The main objective of a safety program is to _ _.
Correct Answer: prevent accidents
Question: _, _ _ is the most appropriate person for evaluating a potential safety hazard.
Correct Answer: you the operator
Question: _, _ _ has the most to gain from an effective safety program.
Correct Answer: you the operator
Question: For a water system to have an effective safety program, the most important item that operators
can do is _ _ _ _ (_).
Correct Answer: commit to the program (attitude)
Question: Excavated material, tools, and other equipment needs to be placed at least __ feet away from the
surface edge of an excavation.
Correct Answer: 2
Question: If the trench is _ feet deep or more it will require a fixed means of egress.
Correct Answer: 4
Question: For a trench, exits must be provided at least every _ feet.
Correct Answer: 25
Question: Ladders must be secured and extend a minimum of _ feet above the landing.
Correct Answer: 3
Question: If a trench is _ feet deep or more it will require some means of protection
Correct Answer: 5
Question: Why is shoring used in trenches? To prevent _ and _.
Correct Answer: injury death
Question: A flagger is required at least _ feet in front of an excavation site.
Correct Answer: 100
Question: _ is the most common combustible gas.
Correct Answer: Methane
Question: One volume of liquid chlorine will expand _ to _ volumes of gaseous chlorine. This means that it
is important to rotate the tank so the rupture is at the top.
Correct Answer: 450 460
Question: Chlorine gas is _ times denser than air.
Correct Answer: 2.5
,Question: Chlorine containers/cylinders are filled to _ % of capacity.
Correct Answer: 25
Question: To check for leaks use an ammonia solution. A _ _ will appear if there is a chlorine leak.
Correct Answer: white cloud
Question: Repair Kit _ is used for for 150 lb. cylinders.
Correct Answer: a
Question: Kit _ is used for ton containers.
Correct Answer: b
Question: A SCBA air supply will last _ on individual breathing patterns while under stress.
Correct Answer: depending
Question: The most dangerous type of chlorine incident is _ or _ of a cylinder.
Correct Answer: rupture failure
Question: Fusible Plugs are used to prevent tank rupture for controlled leak situations and melt between _
to _ Fahrenheit.
Correct Answer: 157 160
Question: Ton containers have _ fusible plugs mounted on each end.
Correct Answer: 3
Question: Exhaust fans should be ducted at _ _.
Correct Answer: floor level
Question: Fresh air intake are ducted at the _.
Correct Answer: ceiling
Question: _ _, _ _, _ _, _ _, and _ _ are recommended safety equipment when working with fluoride
chemicals.
Correct Answer: chemical goggles respirator mask rubber gloves rubber apron rubber boots
Question: Use _ _ to neutralize acid spills. This chemical is also know by its household name _ _.
Correct Answer: sodium bicarbonate baking soda
Question: What are some potential hazards in confined spaces? _ gases and/or _ oxygen content _ _ of
electrical equipment _, _, and _.
Correct Answer: toxic low flooding condensation slips trips falls
Question: An atmosphere that has _ oxygen by volume is considered oxygen deficient.
Correct Answer: 19.5
Question: _ _ is the procedure that should be followed every time when working with electrical equipment.
This prevents accidental energizing of equipment.
Correct Answer: Lockout Tag
, Question: Lockout tags can be removed _ _ _ _ _ _ _ _.
Correct Answer: only by the person who put it on
Question: _ _ and _ two types of electrical safety devices found in control panels.
Correct Answer: circuit breakers fuses
Question: Vulnerability Assessments are required for systems serving populations of _ or more.
Correct Answer: 3300
Question: _, _, and _ are the three stages of threat management.
Correct Answer: possible credible confirmatory
Question: Water systems are concerned about Smallpox because it is both a _ and a _ that has a high rate of
_ transmission.
Correct Answer: pathogen biotoxin secondary
Question: What are the three FEMA disaster classifications?
Correct Answer: What are the three FEMA disaster classifications?
Question: _ is legislation requiring utilities to report chemicals stored on site.
Correct Answer: sara
Question: Password protect and change password every _ days.
Correct Answer: 90
Question: Pathogenic are _ causing organisms.
Correct Answer: disease
Question: Organisms that don't cause disease are _-_.
Correct Answer: non-pathogenic
Question: _ is a process to kill pathogenic organisms.
Correct Answer: disinfection
Question: _ is a is a natural component of the earth's upper atmosphere, where it is primarily formed photo
chemically.
Correct Answer: ozone
Question: Ozone doesn't leave a lasting _.
Correct Answer: residual
Question: What is the molecular formula for ozone?
Correct Answer: o3
Question: What is the molecular structure of oxygen gas?
Correct Answer: o2.
Question: UV operates best when Suspended Solids is <_ - _ mg/L & Turbidity is <_ - _ NTU.
Correct Answer: 10 15 5 10
