Certified Professional Food Safety (Cp-Fs) Exam ||
Questions With Correct Detailed Answers
Question:1
What are the four distinct phases of bacterial growth and presence in food?
Answer: Lag Phase, 2. Log Phase, 3. Stationary Phase, 4. Death Phase.
Question 2: What is the log phase?
Answer: The most essential phase of bacterial presence in food due to the fastest
increase in populations.
Question 3: What is the lag phase?
Answer: A phase where time/temperature control plays an important role in keeping
bacteria from rapidly multiplying.
Question 4: Which pathogen is rarely associated with shellfish?
Answer: Norwalk virus.
Question 5: What are two common pathogens associated with shellfish?
Answer: Hepatitis A virus (HAV) and Vibrio spp.
Question 6: Why must shellstock tags be retained for 90 days?
Answer: The incubation period for Hepatitis A can be as long as 6–7 weeks, requiring
a longer tracking window.
Question 7: Document retention rationale for shellfish
Answer: Retaining shellstock tags for 90 days beyond harvest ensures enough time
for a Hepatitis A infection (up to 6–7 weeks incubation) to manifest. It tracks the exact
location and source of an outbreak. Batches should never be mixed.
Question 8: Pathogens commonly found in soil
Answer: Bacillus cereus, Clostridium botulinum, Clostridium perfringens, and
Listeria monocytogenes. To a lesser extent: Salmonella spp. and Yersinia
enterocolitica.
Question 9: Food typically associated with an outbreak of Bacillus cereus
Answer: Cooked Rice.
Question 10: Percentage of people who are carriers of Staphylococcus aureus
Answer: 50% to 70% of the human population.
Question 11: Location in the body where Staphylococcus aureus is typically
found
, Answer: The upper respiratory tract, as well as frequently in pimples, burns, sores,
and other skin lesions.
Question 12: Primary cause of Staphylococcus foodborne illness
Answer: Toxins formed by the bacteria in the food, rather than ingestion of the live
bacteria itself (it is a food intoxication).
Question 13: How are most foodborne pathogens classified regarding oxygen
requirements?
Answer: Facultative (meaning they can adapt and "make do" with or without
oxygen).
Question 14: What is the most famous anaerobic food pathogen?
Answer: Clostridium botulinum (its cousin, Clostridium perfringens, is also an
anaerobe).
Question 15: Which packaging methods create the greatest risk for Clostridium
botulinum growth?
Answer: Reduced Oxygen Packaging (ROP), Modified Atmosphere Packaging
(MAP), and Vacuum sous vide packaging.
Question 16: What must be included in HACCP plans for vacuum-packaged or
ROP foods?
Answer: Specific barrier elements designed to explicitly prevent the proliferation of
Clostridium botulinum and its toxins.
Question 17: What type of foodborne illness classification is Botulism?
Answer: An intoxication, not a food infection (illness is caused by ingestion of the
pre-formed toxin).
Question 18: What are the characteristics of the Bacillus cereus emetic type
(intoxication)?
Answer: It has a rapid onset of about 30 minutes, causing vomiting as the primary
symptom, typically after consuming time-abused cooked rice.
Question 19: What are the characteristics of the Bacillus cereus diarrheal type
(toxin-mediated infection)?
Answer: It has a longer incubation period and causes diarrhea as the primary
symptom.
Question 20: What are the typical symptoms of Staphylococcus aureus food
poisoning?
Answer: Vomiting, diarrhea, and abdominal cramps with a fast onset time.
Question 21: What are the classic clinical symptoms of Botulism (Clostridium
botulinum) intoxication?
Answer: Double vision, fatigue, difficulty speaking/swallowing, leading to
muscular/respiratory paralysis and potentially death.
Question 22: Are MSG, sulfites, and nitrites considered major chemical hazards
if mismanaged?
Answer: True. These common additives can adversely affect individuals with severe
allergies or chemical sensitivities if used over approved regulatory limits.
Question 23: What specific hazard is associated with temperature-abused tuna,
mackerel, or mahi-mahi?
Answer: Scombroid poisoning caused by the accumulation of histamines in the
fish tissue.
Questions With Correct Detailed Answers
Question:1
What are the four distinct phases of bacterial growth and presence in food?
Answer: Lag Phase, 2. Log Phase, 3. Stationary Phase, 4. Death Phase.
Question 2: What is the log phase?
Answer: The most essential phase of bacterial presence in food due to the fastest
increase in populations.
Question 3: What is the lag phase?
Answer: A phase where time/temperature control plays an important role in keeping
bacteria from rapidly multiplying.
Question 4: Which pathogen is rarely associated with shellfish?
Answer: Norwalk virus.
Question 5: What are two common pathogens associated with shellfish?
Answer: Hepatitis A virus (HAV) and Vibrio spp.
Question 6: Why must shellstock tags be retained for 90 days?
Answer: The incubation period for Hepatitis A can be as long as 6–7 weeks, requiring
a longer tracking window.
Question 7: Document retention rationale for shellfish
Answer: Retaining shellstock tags for 90 days beyond harvest ensures enough time
for a Hepatitis A infection (up to 6–7 weeks incubation) to manifest. It tracks the exact
location and source of an outbreak. Batches should never be mixed.
Question 8: Pathogens commonly found in soil
Answer: Bacillus cereus, Clostridium botulinum, Clostridium perfringens, and
Listeria monocytogenes. To a lesser extent: Salmonella spp. and Yersinia
enterocolitica.
Question 9: Food typically associated with an outbreak of Bacillus cereus
Answer: Cooked Rice.
Question 10: Percentage of people who are carriers of Staphylococcus aureus
Answer: 50% to 70% of the human population.
Question 11: Location in the body where Staphylococcus aureus is typically
found
, Answer: The upper respiratory tract, as well as frequently in pimples, burns, sores,
and other skin lesions.
Question 12: Primary cause of Staphylococcus foodborne illness
Answer: Toxins formed by the bacteria in the food, rather than ingestion of the live
bacteria itself (it is a food intoxication).
Question 13: How are most foodborne pathogens classified regarding oxygen
requirements?
Answer: Facultative (meaning they can adapt and "make do" with or without
oxygen).
Question 14: What is the most famous anaerobic food pathogen?
Answer: Clostridium botulinum (its cousin, Clostridium perfringens, is also an
anaerobe).
Question 15: Which packaging methods create the greatest risk for Clostridium
botulinum growth?
Answer: Reduced Oxygen Packaging (ROP), Modified Atmosphere Packaging
(MAP), and Vacuum sous vide packaging.
Question 16: What must be included in HACCP plans for vacuum-packaged or
ROP foods?
Answer: Specific barrier elements designed to explicitly prevent the proliferation of
Clostridium botulinum and its toxins.
Question 17: What type of foodborne illness classification is Botulism?
Answer: An intoxication, not a food infection (illness is caused by ingestion of the
pre-formed toxin).
Question 18: What are the characteristics of the Bacillus cereus emetic type
(intoxication)?
Answer: It has a rapid onset of about 30 minutes, causing vomiting as the primary
symptom, typically after consuming time-abused cooked rice.
Question 19: What are the characteristics of the Bacillus cereus diarrheal type
(toxin-mediated infection)?
Answer: It has a longer incubation period and causes diarrhea as the primary
symptom.
Question 20: What are the typical symptoms of Staphylococcus aureus food
poisoning?
Answer: Vomiting, diarrhea, and abdominal cramps with a fast onset time.
Question 21: What are the classic clinical symptoms of Botulism (Clostridium
botulinum) intoxication?
Answer: Double vision, fatigue, difficulty speaking/swallowing, leading to
muscular/respiratory paralysis and potentially death.
Question 22: Are MSG, sulfites, and nitrites considered major chemical hazards
if mismanaged?
Answer: True. These common additives can adversely affect individuals with severe
allergies or chemical sensitivities if used over approved regulatory limits.
Question 23: What specific hazard is associated with temperature-abused tuna,
mackerel, or mahi-mahi?
Answer: Scombroid poisoning caused by the accumulation of histamines in the
fish tissue.
