age 1 of 293
Certified Professional Food Safety EXAM ACTUAL
QUESTIONS AND CORRECT DETAILED ANSWERS
LATEST UPDATE THIS YEAR.pdf
1) Which pathogen is most commonly associated with
undercooked ground beef and can cause hemolytic uremic
syndrome (HUS)?
A) Salmonella Typhi
B) Listeria monocytogenes
C) Escherichia coli O157:H7
D) Campylobacter jejuni
Correct Answer: C
,age 2 of 293
Rationale: E. coli O157:H7 is a Shiga toxin-producing E. coli
(STEC) strongly associated with undercooked ground beef. It can
cause severe bloody diarrhea and potentially lead to hemolytic
uremic syndrome (HUS), particularly in young children and
elderly individuals .
2) The "Danger Zone" for food temperature, where bacteria
multiply most rapidly, is:
A) 0°F to 32°F (-18°C to 0°C)
B) 32°F to 40°F (0°C to 4°C)
C) 41°F to 135°F (5°C to 57°C)
D) 140°F to 165°F (60°C to 74°C)
Correct Answer: C
,age 3 of 293
Rationale: The FDA Food Code defines the Temperature Danger
Zone as 41°F-135°F (5°C-57°C), where pathogenic bacteria
can double in number every 20 minutes. Foods should not remain
in this range for more than 4 hours cumulative time .
3) Which of the following is a spore-forming bacterium that can
survive cooking and germinate when food is improperly cooled?
A) Staphylococcus aureus
B) Clostridium perfringens
C) Norovirus
D) Shigella spp.
Correct Answer: B
, age 4 of 293
Rationale: C. perfringens forms heat-resistant spores that survive
cooking. When cooked food (especially meats, gravies) is cooled
slowly or held at improper temperatures, spores germinate and
multiply rapidly, causing illness .
4) A food handler with a sore throat and fever should be
excluded from working with food primarily because they may
transmit:
A) Hepatitis A virus
B) Streptococcus pyogenes or other respiratory pathogens
C) Clostridium botulinum
D) Vibrio vulnificus
Certified Professional Food Safety EXAM ACTUAL
QUESTIONS AND CORRECT DETAILED ANSWERS
LATEST UPDATE THIS YEAR.pdf
1) Which pathogen is most commonly associated with
undercooked ground beef and can cause hemolytic uremic
syndrome (HUS)?
A) Salmonella Typhi
B) Listeria monocytogenes
C) Escherichia coli O157:H7
D) Campylobacter jejuni
Correct Answer: C
,age 2 of 293
Rationale: E. coli O157:H7 is a Shiga toxin-producing E. coli
(STEC) strongly associated with undercooked ground beef. It can
cause severe bloody diarrhea and potentially lead to hemolytic
uremic syndrome (HUS), particularly in young children and
elderly individuals .
2) The "Danger Zone" for food temperature, where bacteria
multiply most rapidly, is:
A) 0°F to 32°F (-18°C to 0°C)
B) 32°F to 40°F (0°C to 4°C)
C) 41°F to 135°F (5°C to 57°C)
D) 140°F to 165°F (60°C to 74°C)
Correct Answer: C
,age 3 of 293
Rationale: The FDA Food Code defines the Temperature Danger
Zone as 41°F-135°F (5°C-57°C), where pathogenic bacteria
can double in number every 20 minutes. Foods should not remain
in this range for more than 4 hours cumulative time .
3) Which of the following is a spore-forming bacterium that can
survive cooking and germinate when food is improperly cooled?
A) Staphylococcus aureus
B) Clostridium perfringens
C) Norovirus
D) Shigella spp.
Correct Answer: B
, age 4 of 293
Rationale: C. perfringens forms heat-resistant spores that survive
cooking. When cooked food (especially meats, gravies) is cooled
slowly or held at improper temperatures, spores germinate and
multiply rapidly, causing illness .
4) A food handler with a sore throat and fever should be
excluded from working with food primarily because they may
transmit:
A) Hepatitis A virus
B) Streptococcus pyogenes or other respiratory pathogens
C) Clostridium botulinum
D) Vibrio vulnificus
