Hot Work Operations Flashcards
7 cards from real Fireguard F-01 Fire Safety practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Hot Work Operations flashcards as text
Which of the following activities is classified as 'hot work' under NYC Fire Code?
Answer: Welding, cutting, or brazing with open flame
Hot work includes any operation involving open flames or heat sufficient to ignite combustibles, such as welding, cutting, and brazing.
Before hot work begins in a building, what document must typically be obtained?
Answer: A hot work permit issued by the authority having jurisdiction
A hot work permit must be issued by the authority having jurisdiction before any hot work commences to ensure proper safety precautions are in place.
According to NFPA 51B, what is the minimum clearance distance that combustible materials must be moved from a hot work area?
Answer: 35 feet
NFPA 51B requires that all combustible materials be moved at least 35 feet from the hot work area to reduce the ignition risk from sparks and heat.
How long must a fire watch be maintained AFTER hot work operations have been completed in an area?
Answer: 30 minutes
A fire watch must be maintained for at least 30 minutes after hot work is completed because smoldering materials can ignite long after the work stops.
What fire suppression equipment must a fire watch personnel have immediately accessible during hot work?
Answer: A charged, appropriate fire extinguisher
Fire watch personnel must have a charged and appropriate fire extinguisher on hand at all times to immediately suppress any ignition before it spreads.
If combustibles cannot be removed from within 35 feet of the hot work location, what is the required alternative?
Answer: Cover or shield combustibles with fire-resistant blankets or guards
When combustibles cannot be relocated, they must be protected with fire-resistant guards or blankets to prevent spark and heat ignition.
Under which condition is hot work generally PROHIBITED regardless of precautions taken?
Answer: In areas where flammable vapors or explosive atmospheres are present
Hot work is prohibited in or near areas containing flammable vapors, gases, or explosive atmospheres because a single spark can cause an explosion.