HIC Food Safety & HACCP Principles 3 — Questions and Answers
Question 1: Which type of food hazard is represented by pesticide residues found in fresh produce?
- Biological hazard
- Physical hazard
- Chemical hazard (Correct answer)
- Allergen cross-contact hazard
Correct answer: Chemical hazard
Pesticide residues are chemical hazards that can contaminate food and cause illness if consumed above safe limits.
Question 2: Under the FDA Food Safety Modernization Act (FSMA), which rule specifically requires covered facilities to conduct a hazard analysis and implement risk-based preventive controls?
- Preventive Controls for Human Food rule (Correct answer)
- Produce Safety rule
- Foreign Supplier Verification Program rule
- Sanitary Transportation rule
Correct answer: Preventive Controls for Human Food rule
The FSMA Preventive Controls for Human Food rule requires registered food facilities to develop and implement a food safety plan including hazard analysis and preventive controls.
Question 3: A cold-cut slicer is used continuously throughout the day without cleaning. Which foodborne illness pathogen is most associated with this scenario?
- Clostridium perfringens
- Listeria monocytogenes (Correct answer)
- Bacillus cereus
- Vibrio parahaemolyticus
Correct answer: Listeria monocytogenes
Listeria monocytogenes is particularly associated with contamination from deli slicers and ready-to-eat equipment that is not cleaned and sanitized frequently.
Question 4: What is the primary purpose of a flow diagram in developing a HACCP plan?
- To satisfy regulatory documentation requirements for FDA inspections
- To provide a detailed map of process steps that enables the team to identify potential hazard points (Correct answer)
- To replace the need for supplier verification and incoming ingredient audits
- To communicate the food safety plan to consumers on product labeling
Correct answer: To provide a detailed map of process steps that enables the team to identify potential hazard points
A flow diagram maps each step in a food production process, allowing the HACCP team to systematically identify where hazards may be introduced, increased, or controlled.
Question 5: A HACCP team is assessing the severity and likelihood of a hazard during the hazard analysis phase. Which hazard would MOST likely be classified as 'significant' and require a CCP?
- Low-severity hazard with negligible likelihood of occurrence
- High-severity hazard with low likelihood, controlled by a prerequisite program
- High-severity hazard with reasonable likelihood of occurrence if not controlled (Correct answer)
- Low-severity hazard with a high likelihood of occurrence in the environment
Correct answer: High-severity hazard with reasonable likelihood of occurrence if not controlled
A hazard is significant when both severity and likelihood of occurrence are high enough to warrant a specific CCP; if a prerequisite program adequately controls it, a CCP may not be needed.
Question 6: Which of the following is an example of an intrinsic factor that affects microbial growth in food?
- Storage temperature of the refrigeration unit
- Relative humidity of the storage room
- Water activity (aw) of the food product itself (Correct answer)
- Air circulation within the walk-in cooler
Correct answer: Water activity (aw) of the food product itself
Intrinsic factors are properties of the food itself, such as water activity, pH, and nutrient content, as opposed to extrinsic factors like temperature and humidity of the environment.
Question 7: A food safety inspector observes that HACCP monitoring records show critical limits were met for every batch, yet a recent environmental swab tested positive for Salmonella. What does this suggest about the HACCP system?
- The monitoring records confirm the HACCP plan is fully effective and the swab result is an outlier
- Verification activities may have identified a gap between the written plan and actual process control (Correct answer)
- The critical limits need to be made more stringent to eliminate Salmonella entirely
- Salmonella in the environment does not represent a food safety concern if the product tested negative
Correct answer: Verification activities may have identified a gap between the written plan and actual process control
A positive environmental swab despite compliant monitoring records indicates the HACCP plan may not be adequately controlling the hazard, which is precisely what verification activities are designed to detect.
HIC Food Safety & HACCP Principles 3
Which type of food hazard is represented by pesticide residues found in fresh produce?