Citywide Practice Exam Questions And

FDNY S92 Supervision of Portable Fueled Space Heaters at Construction Sites (Citywide) Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary hazard associated with portable fueled space

heaters on construction sites?

• Electrical shock
• Fire and explosion
• Noise pollution
• Vibration injury

Rationale: Portable fueled space heaters present a significant fire

and explosion risk due to the combustible fuel they use. 1 / 4

• Before operating a portable fueled space heater, the supervisor must

ensure:

• The heater is placed near combustible materials
• The heater is inspected for leaks and damage
• The heater is turned on at maximum output immediately
• No inspection is required

Rationale: Inspecting for leaks and damage is critical to prevent fires

and accidents.

• Which type of fuel is commonly used in portable construction heaters?
• Gasoline only
• Kerosene only
• Kerosene and propane
• Diesel only

Rationale: Kerosene and propane are standard fuels for portable

construction heaters.

• Portable heaters must be placed at least how far from combustible

materials?

• 1 foot
• 2 feet
• 3 feet
• 5 feet

Rationale: A minimum of 5 feet clearance is required to reduce fire

risk. 2 / 4

• What is the first step in responding to a fuel spill from a portable

heater?

• Continue using the heater
• Shut off the heater and contain the spill
• Call a supervisor after an hour
• Ignore it if it’s small

Rationale: Shutting off the heater and containing the spill prevents

ignition and fire spread.

• Which OSHA standard specifically applies to construction site fire

safety?

A) OSHA 1910.120

• OSHA 1926 Subpart F

C) OSHA 1910.147

D) OSHA 1910.134

Rationale: OSHA 1926 Subpart F covers fire protection and

prevention for construction sites.

• When supervising a portable heater, how often should inspections be

conducted?

• Once a month
• Before each use
• Once a year
• Every six months 3 / 4

Rationale: Heaters should be inspected before every use to ensure

safe operation.

• What is the most appropriate type of extinguisher to have near a

kerosene heater?

• Water extinguisher
• Foam extinguisher
• Class B fire extinguisher
• Class D fire extinguisher

Rationale: Class B extinguishers are effective against flammable

liquid fires such as kerosene.

• Which of the following is a safe practice for refueling a portable

heater?

• Refuel while the heater is operating
• Refuel only when the heater is off and cool
• Refuel near open flames
• Refuel indoors in confined areas

Rationale: Refueling while off and cool prevents accidental ignition.

• Which factor increases the risk of carbon monoxide poisoning

from a portable heater?

• Outdoor operation
• Enclosed or poorly ventilated areas
• Use of Class B extinguisher nearby
• Heater inspection before use
• / 4