Cole’s EHS NEHA Exam Study Guide Questions
With Complete Solution 2023 GRADED A+
How do you filter out giardia lambia? - Rapid sand filtration
Pharmaceuticals in water treatment plants are - Both solid and liquid
Which mosquito is the highest cause of encephalitis in the US? - Culex
What is it called when milk is heated to 191-212 - Pasteurization
Order of priority: power outage at restaurant, chlorine gas leak at pool, no hand sink at
food festival - Chlorine gas, power outage, no hand sink
What is an antibacterial agent used on skin tissue called? - Antiseptic
What is the most common cockroach in US? - German
What type of cockroach is referred to as a water bug? - Either American or Oriental
What is the minimum distance between a water line and a sewer line in a trailer park? - 10
ft
What is the slope for ramps determined by the Americans with Disabilities Act (ADA) - 1:12
or less
NSF and USL are organizations that - Certify food service equipment.
What is the amount of soil you must put on a finished landfill - 24 inches
What is most likely to carry Hantavirus? - Rodents
Which is least likely to cause bites and itching in an urban setting - Ticks
What does HACCP stand for? - Hazard Analysis and Critical Control Points
Methemoglobinemia (a blood disorder) is caused by : - Nitrates
Hazardous waste : CRIT - Corrosive, reactive, ignitable, toxic
Organization that tests breathing apparatus - OSHA
Who is the incident commander? - The person with jurisdiction, person responsible for all
aspects of emergency response
,What is the calculation for pool turnover rate? - Turnover rate (hours)= pool volume
(gallons) / flow rate (gallons per minute) x 60 (minutes per hour)
Sous vide foods can lead to what foodborne illness? - Clostridium botulinum
What can you use after a national disaster? - Canned goods
Where do you store iced fish in the refrigerator? - Below ready to eat foods and above raw
meats
What is considered comminuted? - Hot dogs and hamburgers
What is bacteria that cannot grow in oxygen called? - Anaerobic
Which of these is different from the others? NSF, UL, ASNI, TLE - TLE
Freezing a toxin will have what affect? - No affect
True of false? Alpha particles are easily absorbable - True (easiest to absorb to hardest to
absorb: gamma , beta, alpha),
What can alpha particles be blocked by? - A sheet of paper (beta can pass through paper,
stopped by aluminum. Gamma is difficult to stop, needs concrete or other heavy shielding
What kind of respirator do you need in 15% oxygen - SCBA (self contained breathing
apparatus
Who regulates proper respirators? - OSHA (occupational safety and health administration)
What is the gap in an ice machine for? - Air gap to prevent backflow contamination
Giardia cyst concentration that causes disease - 500:1
What mosquito carries malaria? - Anopheles
What cockroach is most common in urban areas - German
What was modeled after the National Emergency Response - NIMS (national incident
management system)
The REHS did something that they knew was unlawful and they did it in an unapproved
way - Malfeasance
What role can REHS perform when helping with an ice machine to prevent contamination -
Create a cleaning schedule
, There has been a flood and the septic tank has not been buried. What is a concern for
pumping? - Floating of the tank
Noscomial infections are most severe in - Hospitals
Which airflow from hospitals is least critical? - Hallway to dirty laundry area
What is NIMS? - National Incident Management System , a systematic proactive approach to
guide departments and agencies at all levels of government
What is ICS? - Incident Command System , a systematic tool for the command, control, and
coordination of emergency response
Depth to water table of six inches requires a - Sand mound
Fast food facilities create the most - F.O.G (fats, oil, grease)
Which bacteria does HACCP target? - Listeria monocytogenes
Prevailing winds ... - Blow predominantly from a single direction over a particular point on
earth's surface
What is the first thing you do if you come across mold in a room? - Open a window
What is the effect of adding co2 to a septic tank? - Lowers ph
What disease is commonly spread through wastewater? - Hep A
What guidance do you give a homeowner with a new septic tank? - Pump regularly
What is the best system for a small community? - Rapid sand
Nitrogen is transformed into what during conventional biological processes? - Ammonia
and biological sludge
A family complains of multiple bites and a rash. What is the least likely organism to cause
it? - Tick
There is a vacant lot that has been used for dumping of unwanted items. What is the correct
action that REHS should perform? - Contact the owner and explain the public health
dangers, including the harboring of rodents. Discuss measures to get the site cleaned up, as
well as blocking the area/post no dumping signs
During an emergency event, there is a worry about a hanta virus outbreak. What
educational measures should be put into place to help the public - How to prevent rodents
With Complete Solution 2023 GRADED A+
How do you filter out giardia lambia? - Rapid sand filtration
Pharmaceuticals in water treatment plants are - Both solid and liquid
Which mosquito is the highest cause of encephalitis in the US? - Culex
What is it called when milk is heated to 191-212 - Pasteurization
Order of priority: power outage at restaurant, chlorine gas leak at pool, no hand sink at
food festival - Chlorine gas, power outage, no hand sink
What is an antibacterial agent used on skin tissue called? - Antiseptic
What is the most common cockroach in US? - German
What type of cockroach is referred to as a water bug? - Either American or Oriental
What is the minimum distance between a water line and a sewer line in a trailer park? - 10
ft
What is the slope for ramps determined by the Americans with Disabilities Act (ADA) - 1:12
or less
NSF and USL are organizations that - Certify food service equipment.
What is the amount of soil you must put on a finished landfill - 24 inches
What is most likely to carry Hantavirus? - Rodents
Which is least likely to cause bites and itching in an urban setting - Ticks
What does HACCP stand for? - Hazard Analysis and Critical Control Points
Methemoglobinemia (a blood disorder) is caused by : - Nitrates
Hazardous waste : CRIT - Corrosive, reactive, ignitable, toxic
Organization that tests breathing apparatus - OSHA
Who is the incident commander? - The person with jurisdiction, person responsible for all
aspects of emergency response
,What is the calculation for pool turnover rate? - Turnover rate (hours)= pool volume
(gallons) / flow rate (gallons per minute) x 60 (minutes per hour)
Sous vide foods can lead to what foodborne illness? - Clostridium botulinum
What can you use after a national disaster? - Canned goods
Where do you store iced fish in the refrigerator? - Below ready to eat foods and above raw
meats
What is considered comminuted? - Hot dogs and hamburgers
What is bacteria that cannot grow in oxygen called? - Anaerobic
Which of these is different from the others? NSF, UL, ASNI, TLE - TLE
Freezing a toxin will have what affect? - No affect
True of false? Alpha particles are easily absorbable - True (easiest to absorb to hardest to
absorb: gamma , beta, alpha),
What can alpha particles be blocked by? - A sheet of paper (beta can pass through paper,
stopped by aluminum. Gamma is difficult to stop, needs concrete or other heavy shielding
What kind of respirator do you need in 15% oxygen - SCBA (self contained breathing
apparatus
Who regulates proper respirators? - OSHA (occupational safety and health administration)
What is the gap in an ice machine for? - Air gap to prevent backflow contamination
Giardia cyst concentration that causes disease - 500:1
What mosquito carries malaria? - Anopheles
What cockroach is most common in urban areas - German
What was modeled after the National Emergency Response - NIMS (national incident
management system)
The REHS did something that they knew was unlawful and they did it in an unapproved
way - Malfeasance
What role can REHS perform when helping with an ice machine to prevent contamination -
Create a cleaning schedule
, There has been a flood and the septic tank has not been buried. What is a concern for
pumping? - Floating of the tank
Noscomial infections are most severe in - Hospitals
Which airflow from hospitals is least critical? - Hallway to dirty laundry area
What is NIMS? - National Incident Management System , a systematic proactive approach to
guide departments and agencies at all levels of government
What is ICS? - Incident Command System , a systematic tool for the command, control, and
coordination of emergency response
Depth to water table of six inches requires a - Sand mound
Fast food facilities create the most - F.O.G (fats, oil, grease)
Which bacteria does HACCP target? - Listeria monocytogenes
Prevailing winds ... - Blow predominantly from a single direction over a particular point on
earth's surface
What is the first thing you do if you come across mold in a room? - Open a window
What is the effect of adding co2 to a septic tank? - Lowers ph
What disease is commonly spread through wastewater? - Hep A
What guidance do you give a homeowner with a new septic tank? - Pump regularly
What is the best system for a small community? - Rapid sand
Nitrogen is transformed into what during conventional biological processes? - Ammonia
and biological sludge
A family complains of multiple bites and a rash. What is the least likely organism to cause
it? - Tick
There is a vacant lot that has been used for dumping of unwanted items. What is the correct
action that REHS should perform? - Contact the owner and explain the public health
dangers, including the harboring of rodents. Discuss measures to get the site cleaned up, as
well as blocking the area/post no dumping signs
During an emergency event, there is a worry about a hanta virus outbreak. What
educational measures should be put into place to help the public - How to prevent rodents
