NEHA RS/REHS LATEST EXAM 2026/2027 QUESTIONS
AND SOLUTIONS RATED A+
✔✔How much faster do infants absorb lead than adults? - ✔✔4 to 5 times more than
adults
✔✔If a house built in 1970 was taken down to the studs and redone in 1980, what
would you inspect first regarding a sickness from lead in a person's house? - ✔✔Paint
peeling from around window sill
✔✔What following pet can lead to Psittacosis in a child
Parrots
Dogs
Cats
Mouse - ✔✔Parrots
✔✔Most common cockroach in the US? - ✔✔German
✔✔Amount of soil to put on a finished landfill - ✔✔24 inches
✔✔What carries Hantavirus? - ✔✔Rodents
✔✔What of the following is not characteristic of Hazardous waste
a. corrosive
b. toxic
c. ignitable
d. degradable - ✔✔Degradable
Remember, CRIT is the 4 hazardous waste items (corrosive, reactive, ignitable, toxic)
✔✔Formula for turnover rate - ✔✔Turnover Rate in Hours= (Pool Gallons/GPM)/60
✔✔A daycare with a wading pool needs to do what of the following?
a. Drained and cleaned daily or after each use
b. Have a chlorine level of 5 ppm
c. Stay less than 18 inches of water
d. Have lifeguard training - ✔✔Drained and cleaned daily or after each use
✔✔When using heat to kill bed bugs, what temperature is needed for a 90-minute
removal?
90°F
100°F
120°F
140°F - ✔✔120°F
,✔✔Sous vide food can lead to what foodborne illness? - ✔✔Clostridium botulinum
✔✔What would be the safest to do at a school event and then sell?
Cooking vegetables from a home garden
Canning Fruits
Baking custard pies
Freeze-drying ice cream, fruits, and candy - ✔✔Cooking vegetables from a home
garden
✔✔What can you use after a national Disaster? - ✔✔Canned Goods
✔✔What is considered comminuted?
a. pizza
b. hot dogs and hamburgers
c. chili
d. fruits and vegetables - ✔✔Hot dogs and hamburgers
✔✔Freezing a toxin will have what effect?
a. decrease toxins drastically
b. decrease slightly
c. increases
d. no effect - ✔✔no effect
✔✔What kind of respirator do you need in 15% oxygen?
Half
Full
SCBA
None - ✔✔SCBA
Positive pressure full face mask SCBA (self contained breathing apparatus)
✔✔There was heavy rain and a septic tank has not been buried. What is the main
concern? - ✔✔Floating of the tank
✔✔Nosocomial infections are most severe in?
a. schools
b. restaurants
c. hospitals
d. prison commissary - ✔✔Hospitals
✔✔What disease is commonly spread through wastewater? - ✔✔HEP A
✔✔What type of soil is best for an onsite wastewater system? - ✔✔Red, Brown, or
Yellow
, ✔✔What is the goal of onsite wastewater systems? - ✔✔collect, treat, and disperse
wastewater generated by a home or business.
✔✔What is the biggest concern at a festival lasting more than three days? - ✔✔water,
sewage, food protection
✔✔When confirming there are enough portable bathrooms at a 3-day music event for
200,000 people, what must an RS also look for?
They are all centrally located
all across from the food location
Accessible from the camping location
That they are located to be easily serviced - ✔✔That they are located to be easily
serviced
✔✔A complaint is received stating a rash after swimming in a hot tub. What is likely to
have caused the rash? - ✔✔Pseudomonas Aeruginosa
✔✔What travels the furthest in a septic field bacteria or viruses? - ✔✔Viruses
✔✔What temp are shell eggs received at? - ✔✔45°F or below
✔✔Temp. to cook eggs for immediate service? - ✔✔145°F for 15 seconds
✔✔Temp, to cook scrambled eggs for hot holding? - ✔✔155°F for 15 seconds
✔✔What temp do you cook chicken to? - ✔✔165°F for 1 second
✔✔What is the process of moderating the temperature of a food, such as allowing it to
gradually increase from a frozen temperature to facilitate heat penetration during
cooking? - ✔✔Slacking
✔✔When you add a disposal to a kitchen and septic system what do you expect to see
an increase of? - ✔✔Biochemical Oxygen Demand (BOD)
✔✔How do you calibrate a thermometer? - ✔✔32°F ice water or 212°F boiling water
✔✔Salmonella grows best in what pH? - ✔✔6.5-7.5
✔✔What amount of space is needed per person on a bathing beach? - ✔✔Bather use-
A minimum of 25 square feet of water surface per bather shall be provided if less than
four feet deep. At least 75 square feet per bather must be provided in an area over four
feet deep.
AND SOLUTIONS RATED A+
✔✔How much faster do infants absorb lead than adults? - ✔✔4 to 5 times more than
adults
✔✔If a house built in 1970 was taken down to the studs and redone in 1980, what
would you inspect first regarding a sickness from lead in a person's house? - ✔✔Paint
peeling from around window sill
✔✔What following pet can lead to Psittacosis in a child
Parrots
Dogs
Cats
Mouse - ✔✔Parrots
✔✔Most common cockroach in the US? - ✔✔German
✔✔Amount of soil to put on a finished landfill - ✔✔24 inches
✔✔What carries Hantavirus? - ✔✔Rodents
✔✔What of the following is not characteristic of Hazardous waste
a. corrosive
b. toxic
c. ignitable
d. degradable - ✔✔Degradable
Remember, CRIT is the 4 hazardous waste items (corrosive, reactive, ignitable, toxic)
✔✔Formula for turnover rate - ✔✔Turnover Rate in Hours= (Pool Gallons/GPM)/60
✔✔A daycare with a wading pool needs to do what of the following?
a. Drained and cleaned daily or after each use
b. Have a chlorine level of 5 ppm
c. Stay less than 18 inches of water
d. Have lifeguard training - ✔✔Drained and cleaned daily or after each use
✔✔When using heat to kill bed bugs, what temperature is needed for a 90-minute
removal?
90°F
100°F
120°F
140°F - ✔✔120°F
,✔✔Sous vide food can lead to what foodborne illness? - ✔✔Clostridium botulinum
✔✔What would be the safest to do at a school event and then sell?
Cooking vegetables from a home garden
Canning Fruits
Baking custard pies
Freeze-drying ice cream, fruits, and candy - ✔✔Cooking vegetables from a home
garden
✔✔What can you use after a national Disaster? - ✔✔Canned Goods
✔✔What is considered comminuted?
a. pizza
b. hot dogs and hamburgers
c. chili
d. fruits and vegetables - ✔✔Hot dogs and hamburgers
✔✔Freezing a toxin will have what effect?
a. decrease toxins drastically
b. decrease slightly
c. increases
d. no effect - ✔✔no effect
✔✔What kind of respirator do you need in 15% oxygen?
Half
Full
SCBA
None - ✔✔SCBA
Positive pressure full face mask SCBA (self contained breathing apparatus)
✔✔There was heavy rain and a septic tank has not been buried. What is the main
concern? - ✔✔Floating of the tank
✔✔Nosocomial infections are most severe in?
a. schools
b. restaurants
c. hospitals
d. prison commissary - ✔✔Hospitals
✔✔What disease is commonly spread through wastewater? - ✔✔HEP A
✔✔What type of soil is best for an onsite wastewater system? - ✔✔Red, Brown, or
Yellow
, ✔✔What is the goal of onsite wastewater systems? - ✔✔collect, treat, and disperse
wastewater generated by a home or business.
✔✔What is the biggest concern at a festival lasting more than three days? - ✔✔water,
sewage, food protection
✔✔When confirming there are enough portable bathrooms at a 3-day music event for
200,000 people, what must an RS also look for?
They are all centrally located
all across from the food location
Accessible from the camping location
That they are located to be easily serviced - ✔✔That they are located to be easily
serviced
✔✔A complaint is received stating a rash after swimming in a hot tub. What is likely to
have caused the rash? - ✔✔Pseudomonas Aeruginosa
✔✔What travels the furthest in a septic field bacteria or viruses? - ✔✔Viruses
✔✔What temp are shell eggs received at? - ✔✔45°F or below
✔✔Temp. to cook eggs for immediate service? - ✔✔145°F for 15 seconds
✔✔Temp, to cook scrambled eggs for hot holding? - ✔✔155°F for 15 seconds
✔✔What temp do you cook chicken to? - ✔✔165°F for 1 second
✔✔What is the process of moderating the temperature of a food, such as allowing it to
gradually increase from a frozen temperature to facilitate heat penetration during
cooking? - ✔✔Slacking
✔✔When you add a disposal to a kitchen and septic system what do you expect to see
an increase of? - ✔✔Biochemical Oxygen Demand (BOD)
✔✔How do you calibrate a thermometer? - ✔✔32°F ice water or 212°F boiling water
✔✔Salmonella grows best in what pH? - ✔✔6.5-7.5
✔✔What amount of space is needed per person on a bathing beach? - ✔✔Bather use-
A minimum of 25 square feet of water surface per bather shall be provided if less than
four feet deep. At least 75 square feet per bather must be provided in an area over four
feet deep.
