RDN Food Safety 2

Question 1

Which pathogen is most commonly associated with undercooked poultry and is the leading cause of bacterial foodborne illness in the US?

Accepted Answer

Salmonella

Answer

Listeria monocytogenes

Answer

Clostridium perfringens

Answer

Yersinia enterocolitica

Question 2

A food handler returns to work after recovering from a confirmed Norovirus illness. When is it safe to resume food handling duties?

Accepted Answer

After being symptom-free for at least 48 hours

Answer

24 hours after last vomiting episode

Answer

As soon as a doctor clears them

Answer

After completing a full course of antibiotics

Question 3

Which temperature range defines the 'danger zone' for bacterial growth in foods?

Accepted Answer

40°F–140°F (4°C–60°C)

Answer

32°F–120°F (0°C–49°C)

Answer

50°F–165°F (10°C–74°C)

Answer

35°F–150°F (2°C–66°C)

Question 4

A hospital dietitian is planning menus for immunocompromised patients. Which food should be EXCLUDED due to Listeria risk?

Accepted Answer

Cold deli meats served without reheating

Answer

Canned vegetables heated to 165°F

Answer

Hard-boiled eggs kept refrigerated

Answer

Pasteurized cheese slices

Question 5

The FIFO (First In, First Out) inventory method is used in food storage primarily to:

Accepted Answer

Ensure older products are used before newer ones to reduce spoilage

Answer

Maximize storage space efficiency

Answer

Reduce the need for date labeling

Answer

Prioritize expensive ingredients for use first

Question 6

Cross-contamination in a food preparation setting is BEST prevented by:

Accepted Answer

Using separate cutting boards for raw meats and ready-to-eat foods

Answer

Washing all produce with soap before use

Answer

Storing cooked foods on shelves below raw meats

Answer

Using the same knife for all foods after visual inspection

Question 7

Which mycotoxin, produced by Aspergillus molds, is a potent hepatocarcinogen and a significant food safety concern in corn and peanuts?

Accepted Answer

Aflatoxin

Answer

Ochratoxin A

Answer

Deoxynivalenol

Answer

Fumonisins