Facilities Exam Practice Questions And

FDNY C93 Supervision of Dry Cleaning Facilities Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following is the primary hazard associated with

perchloroethylene (PERC) in dry cleaning?

• Fire
• Inhalation toxicity
• Electrical shock
• Slip and fall

Rationale: PERC is a volatile chemical commonly used in dry cleaning and

poses significant health risks when inhaled over time.

• What is the maximum allowable concentration of PERC in the air

according to OSHA standards? 1 / 4

• 50 ppm
• 200 ppm
• 100 ppm
• 10 ppm

Rationale: OSHA sets the permissible exposure limit (PEL) for PERC at 100

parts per million over an 8-hour workday.

• Which type of fire extinguisher is recommended for a PERC fire?
• Water
• Carbon dioxide
• Dry chemical
• Foam

Rationale: PERC is a solvent-based chemical; dry chemical extinguishers

are suitable for flammable liquid fires.

• In a dry cleaning facility, which ventilation system is most effective at

reducing solvent exposure?

• Ceiling fans
• Open windows
• Local exhaust ventilation
• Portable air purifiers

Rationale: Local exhaust ventilation captures solvent vapors at the source,

reducing worker exposure. 2 / 4

• What is the main purpose of a machine’s “reclaim cycle”?
• Improve drying efficiency
• Reduce energy consumption
• Recover and recycle solvent
• Remove lint from garments

Rationale: The reclaim cycle condenses and reuses solvents, minimizing

environmental release and cost.

• Which personal protective equipment (PPE) is required when handling

liquid solvents in dry cleaning?

• Safety shoes
• Ear plugs
• Chemical-resistant gloves
• Hard hat

Rationale: Gloves prevent skin absorption of hazardous chemicals like

PERC and other solvents.

• How often must dry cleaning machines undergo maintenance to

ensure safety and compliance?

• Once a year
• According to manufacturer’s schedule
• Once every 5 years
• Only after breakdowns 3 / 4

Rationale: Regular maintenance per manufacturer guidelines ensures

proper function and reduces hazards.

• What is the correct storage practice for flammable solvents?
• Open shelves near heat sources
• In approved flammable liquid cabinets
• In cardboard boxes
• In closets with clothing

Rationale: Flammable liquids must be stored in approved cabinets to

reduce fire risk.

• Which of the following signs indicates a possible PERC leak?
• Water puddles
• Burning smell
• Sweet, chloroform-like odor
• Dust accumulation

Rationale: PERC has a distinctive sweet odor, signaling potential leaks.

• What is the purpose of a secondary containment system for

solvent storage?

• Reduce odor
• Prevent spills from evaporating
• Contain leaks and spills
• Improve solvent quality
• / 4