CHA Electrical Systems & Wiring 2

Question 1

In a food processing wet area, which type of electrical outlet is required by the NEC to prevent shock hazards?

Accepted Answer

Ground fault circuit interrupter (GFCI) outlet

Answer

NEC requires GFCI protection in wet or damp locations such as food processing areas to prevent electric shock.

Question 2

Which NEMA enclosure rating is most appropriate for electrical equipment exposed to food-grade washdown with high-pressure water?

Accepted Answer

NEMA 4X

Answer

NEMA 4X provides watertight, corrosion-resistant protection suitable for high-pressure washdown environments in food facilities.

Question 3

During a HACCP audit, an auditor finds that electrical conduit runs through a food preparation zone with visible gaps at fittings. What is the primary concern?

Accepted Answer

Pest harborage and contamination risk

Answer

Gaps in conduit fittings in food zones create harborage sites for insects and rodents, posing a direct biological contamination hazard.

Question 4

A food facility installs explosion-proof electrical fixtures. This is most likely required in which area?

Accepted Answer

Solvent-based cleaning chemical storage rooms

Answer

Explosion-proof fixtures are required in classified hazardous locations where flammable vapors from solvents or gases may be present.

Question 5

What is the purpose of lockout/tagout (LOTO) procedures in food processing facilities from a HACCP perspective?

Accepted Answer

Preventing equipment from energizing during cleaning or maintenance to protect workers and prevent contamination

Answer

LOTO prevents unexpected equipment startup during cleaning or repair, protecting workers from injury and preventing contamination of food contact surfaces.

(CHA) Certified HACCP Auditor Practice Test

(CHA) Certified HACCP Auditor Practice Test

CHA Electrical Systems & Wiring 2