F60 practice Test

If the fire protection system becomes impaired during hot work operations, all hot work must cease immediately until the system is restored or additional fire safety measures are implemented.

For confined space hot work operations, the designated escape route for the fire watch must be at least 28 inches wide to ensure quick and safe egress in case of emergency.

While increasing ventilation can help with fume control, it is not a primary method for controlling fire hazards during hot work. The other options are valid fire prevention techniques.

Lithium-ion batteries should not be stored in environments exceeding 110°F (43°C) to prevent thermal runaway and potential fire hazards.

For extended hot work operations, the Responsible Person should conduct a thorough inspection of the work area every 4 hours to ensure ongoing compliance with safety requirements and identify any new hazards.

A flash arrestor is a critical safety device in oxy-fuel welding equipment designed to prevent flashback, which is the dangerous reverse flow of flame into the gas cylinders.

A dedicated fire watch is not typically required when hot work is performed on a metal partition, assuming no other fire hazards are present. The other situations necessitate a fire watch due to increased risks.

OSHA regulations require a minimum separation of 20 feet between stored oxygen cylinders and flammable gas cylinders to prevent potential hazards in case of leaks or fires.

The Fire Guard Daily Log Book must include the time hot work ceased and when the fire watch ended, as this is crucial for ensuring the required post-work monitoring period is observed.

To maintain alertness and effectiveness, a single fire guard should not continuously monitor hot work operations for more than 4 hours without a break.

CO2 extinguishers should not be used on lithium-ion battery fires as they are ineffective and may exacerbate the thermal runaway process. Water is actually the preferred agent for cooling and extinguishing these fires.

Fire safety requirements for hot work operations mandate a minimum of two 2-A:20-B:C rated fire extinguishers within 30 feet of the work area.

Performing welding equipment maintenance is not a responsibility of the Responsible Person during pre-hot work checks. Their duties focus on fire safety measures and environmental checks.

The maximum allowable backpressure for acetylene in gas welding operations is 15 psig. Exceeding this pressure can lead to acetylene decomposition and potential explosions.

According to fire safety requirements, a fire watch must remain on duty for a minimum of 1 hour after the completion of hot work operations to ensure no hidden fires or smoldering embers remain.