29 questions from the Level 2 food hygiene (UK) practice test.
10 questions, graded as you go, with the reason for every answer. Start free, no sign-up.
By what process do bacteria multiply?
D. Binary fission
Bacteria multiply by binary fission, where one cell splits into two. Spore formation is a survival mechanism used by some bacteria in harsh conditions; it does not increase their numbers.
Reference: Level 2 food safety syllabus: bacterial multiplication
In ideal conditions, roughly how often can food poisoning bacteria divide?
C. Every 10 to 20 minutes
With warmth, food, moisture and time, many bacteria can double in number about every 10 to 20 minutes, so a few cells can become millions within hours. Every two to three hours would greatly underestimate how quickly food left out becomes dangerous.
Reference: Level 2 food safety syllabus: bacterial multiplication
Which of these is a high-risk food?
C. Cooked rice
Cooked rice is moist, ready to eat and supports bacterial growth, so it is high risk. Dried pasta is tempting because it is a similar staple, but it has too little moisture for bacteria to multiply until it is cooked.
Reference: Level 2 food safety syllabus: high-risk foods