G60 Question with complete solution 2023

G60 Question with complete solution 2023Fire guard A person holding a certificate of Fitness for such purposes, who is trained in and responsible for maintaining a fire watch and performing such fire safety duties as may be prescribed by the commissioner Fire Watch A temporary measure intended to ensure continuous and systemic surveillance of a building or portion thereof by one or more qualified individuals for the purposes of identifying and controlling fire hazards, detecting early signs of fire, raising an alarm of fire, and notifying the department Hot Work Cutting, welding, thermit welding, brazing, soldering, grinding, thermal spraying, thawing pipe, cadwelding, installation of torch - applied system or any other similar operation or activity Hot Work Area The area exposed to sparks, hot slag, radiant heat, or convective heat as a result of hot work NFPA National Fire Protection Association. The world's leading advocate of fire prevention and an authoritative source on public safety, NFPA develops, publishes and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks Personal Supervison Supervison by the holder of any department certificate who is required to be personally present on the premises, or other proximate location acceptable to the department, while performing the duties for which the certificate is required Responsible Person A person trained in the fire safety hazards associated with hot work, and in the necessary and appropriate measures to minimize those hazards, who is designated by the owner of a premises to authorize the performance of hot work at the premises Torch - applied roof system Bituminous roofing systems using membranes that are adhered by heating with a torch and melting asphalt back coating instead of mopping hot asphalt for adhesion oxygen-fuel gas torches have two separate containers: a pressurized fuel gas container and a pressurized oxygen container. The oxygen cylinder made of steel and contains 100% oxygen. A mixture of oxygen and a fuel gas is used to generate a flame oxygen intensifies the burning of the fuel gas. Oxy-propane torches can produce about _____ degrees Fahrenheit higher than the air-propane torch can generate 1,500 Acetylene is used because compared to the other fuel gases it creates the greatest amount of heat when burned (i.e. 3,000 degrees Fahrenheit higher than an air-propane torch) Both gas containers have control valves on the ___ of the container. top The valves control the discharge of gas from the containers Gas containers also have a protective cap or protective collar. when the cylinders are not in use The caps should be screwed on over the valve The oxygen is stored at pressures up to 2200 psi The fuel gas is stored at higher pressures to keep sufficient amount of fuel available for torch operations it is dangerous to use the fuel gas at pressures above __ psi, especially for _________ 15, acetylene. The regulator makes sure that fuel is discharged from the gas container at a safe pressure range The two gases, _______ and the ________, are mixed inside the torch oxygen, fuel gases Adjusting the valves controls: the shape and intensity of the flame.