BRCGS training and professional/auditor routes · International (UK-based) · BRCGS
Original practice questions written to the published syllabus · not past papersKeeping the plant clean and verified clean: soils and detergents, cleaning-in-place and cleaning-out-of-place, sanitisers and their validation, environmental monitoring for pathogens, personnel hygiene, pest management and water and waste hygiene.
In the exams: GATE XE-G Section 3 (food plant sanitation and cleaning in place); ICAR AICE 35.a Unit 4 (principles and practices of food plant sanitation); state Food Safety Officer syllabi
How our questions for BRCGS training and professional/auditor routes spread across the units of Food Plant Sanitation, Cleaning & Pest Management. Difficulty: 0 easy, 16 medium, 4 hard.
| Waste handling and plant surroundings | 4 | |
| Cleaning-out-of-place and manual cleaning | 3 | |
| Integrated pest management in food plants | 3 | |
| Principles of food plant sanitation and hygiene | 2 | |
| Validation and verification of cleaning: ATP, swabs and allergen tests | 2 | |
| Environmental monitoring programmes for Listeria and Salmonella | 2 | |
| Water hygiene in food plants | 2 | |
| Sanitisers: chlorine, iodophors, quaternary ammonium compounds, peracetic acid and others | 1 | |
| Personnel hygiene and hand hygiene | 1 |
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
A plant's cleaning staff skip the pre-rinse to save time and apply detergent to heavily soiled conveyors. What is the most likely consequence?
C. Detergent is consumed by loose soil, leaving residues and organisms behind
The pre-rinse removes loose soil so that detergent acts on the bound soil; skipping it wastes chemical and leaves surfaces poorly cleaned. Soil never sanitises a surface or removes the need to rinse.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
A suspension test under EN 1276 requires what minimum reduction of test bacteria?
C. 5-log
EN 1276 is a suspension test requiring at least a 5-log reduction; EN 13697 is the surface test requiring at least 4-log for bacteria on a dried film.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
Which method is avoided for dry cleaning in a low-moisture plant?
B. Compressed air blowing
Compressed air spreads dust, allergens and organisms around the plant. HEPA vacuums, scraping and alcohol wipes are standard dry methods.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
A chocolate plant must change a line from a hazelnut product to a nut-free one. What makes this clean particularly demanding?
B. Fine dry residues spread widely and must be removed to a validated level
Allergenic powders and fat-based residues spread into crevices and are hard to remove without water; the clean must be validated and verified with specific tests. Heat does not reliably destroy allergenicity, invisible residues can cause reactions, and water introduces microbial and quality risks in chocolate plants.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
Which test detects residues of a named allergen such as peanut on a surface after a changeover?
D. A specific lateral-flow or ELISA test
Immunochemical tests detect proteins of a specific allergen. ATP and general protein tests indicate residue but not which allergen; plate counts and pH do not detect allergens.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
Why do many programmes test for Listeria species rather than only L. monocytogenes on environmental samples?
D. All Listeria species indicate conditions in which L. monocytogenes could survive
Listeria spp. share the same niches, so any Listeria shows that the environment allows L. monocytogenes; the broader target gives more warning. L. monocytogenes causes nearly all human listeriosis and can be detected.
Further reading: Codex CXG 61-2007; Marriott, Principles of Food Sanitation
What is food safety culture?
D. Shared attitudes and behaviours on food safety
Food safety culture, now named in Codex and certification standards, is how people think and act about food safety, led by management. It is not a microbial culture, certificate or test.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
Where should an insect light trap be placed in a food plant?
D. Away from doors and not over exposed product
Traps visible from outside attract insects into the building, and units over product can drop fragments; they are placed inside, away from doorways and open food. Sticky-board units are preferred in food areas.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
In which direction should floor drainage flow in a plant with raw and cooked areas?
D. From high-care towards low-care areas
Drains flow from clean to dirty so that wastewater from raw areas cannot reach high-care areas. Flow towards cooked areas would carry contamination into them.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
Why is a clear strip of gravel or paving kept around the outside walls of a food factory?
B. It removes rodent cover and makes inspection easier
Cleared, vegetation-free strips deny rodents shelter and make burrows and droppings visible. Drainage and temperature are minor benefits, and it is not a universal fire rule.
Further reading: Marriott, Schilling and Gravani, Principles of Food Sanitation
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