Cole's EHS NEHA Exam Study Guide
Questions With 100% Verified Answers
How do you filter out giardia lambia? - answer✔Rapid sand filtration
Pharmaceuticals in water treatment plants are - answer✔Both solid and liquid
Which mosquito is the highest cause of encephalitis in the US? - answer✔Culex
What is it called when milk is heated to 191-212 - answer✔Pasteurization
Order of priority: power outage at restaurant, chlorine gas leak at pool, no hand sink at food
festival - answer✔Chlorine gas, power outage, no hand sink
What is an antibacterial agent used on skin tissue called ? - answer✔Antiseptic
What is the most common cockroach in US? - answer✔German
What type of cockroach is referred to as a water bug? - answer✔Either American or Oriental
What is the minimum distance between a water line and a sewer line in a trailer park? -
answer✔10 ft
What is the slope for ramps determined by the Americans with Disabilities Act (ADA) -
answer✔1:12 or less
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NSF and USL are organizations that - answer✔Certify food service equipment.
What is the amount of soil you must put on a finished landfill - answer✔24 inches
What is most likely to carry Hantavirus? - answer✔Rodents
Which is least likely to cause bites and itching in an urban setting - answer✔Ticks
What does HACCP stand for? - answer✔Hazard Analysis and Critical Control Points
Methemoglobinemia (a blood disorder) is caused by : - answer✔Nitrates
Hazardous waste : CRIT - answer✔Corrosive, reactive, ignitable, toxic
Organization that tests breathing apparatus - answer✔OSHA
Who is the incident commander? - answer✔The person with jurisdiction, person responsible for
all aspects of emergency response
What is the calculation for pool turnover rate? - answer✔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? - answer✔Clostridium botulinum
What can you use after a national disaster? - answer✔Canned goods
Where do you store iced fish in the refrigerator? - answer✔Below ready to eat foods and above
raw meats
What is considered comminuted? - answer✔Hot dogs and hamburgers
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What is bacteria that cannot grow in oxygen called? - answer✔Anaerobic
Which of these is different from the others? NSF, UL, ASNI, TLE - answer✔TLE
Freezing a toxin will have what affect? - answer✔No affect
True of false? Alpha particles are easily absorbable - answer✔True (easiest to absorb to hardest
to absorb: gamma , beta, alpha),
What can alpha particles be blocked by? - answer✔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 - answer✔SCBA (self contained breathing
apparatus
Who regulates proper respirators? - answer✔OSHA (occupational safety and health
administration)
What is the gap in an ice machine for? - answer✔Air gap to prevent backflow contamination
Giardia cyst concentration that causes disease - answer✔500:1
What mosquito carries malaria? - answer✔Anopheles
What cockroach is most common in urban areas - answer✔German
What was modeled after the National Emergency Response - answer✔NIMS (national incident
management system)