fdny g60 PRACTICE TEST EXAM 2023 WITH 100% CORRECT ANSWERS

Sprinkler system must NOT be shut off or impaired while hot work is performed Place damp cloth guards on individual sprinkler heads The person conducting the fire watch ______ have other duties CANNOT A portable fire extinguisher with a rating of _________ is required and should be within ____ feet travel distance hot work area 2-A:20-B:C///30 For ROOFING OPERATIONS, a portable fire extinguisher with a minimum rating of ______ is required 3-A:40-B:C Fire watch on floors below is ______ required The fire watch must continue for a minimum of ____ minutes after the hot work is done 30 For any CNG or LPG torch operations, the first inspection shall be conducted ___ minutes after completion. The second inspection shall be conducted _______ after completion of torch operations. 30 min///1 hour The fire guard or fire watch personnel must complete a signed inspection report and it must be submitted to and retained by the person in charge of the torch operations. The report must be made available and maintained on the premises for a minimum of 48 hours after the work is complete. Most common fuel gasses used in blowtorches are ______ LPG (butane, propane) natural gas (methane) (either CNG or piped natural gasses) Soldering and brazing temperatures are typically______ 840 degrees F Oxy-acetylene generates the highest temperature which can reach up to _____ 6000 degrees F Gas torches can exceed _________ and are used for burning weeds, melting ice, or applying tar to a roof 2000 degrees F If the torch operation is to stop for a period of _________________, the torch vale must be closed and the gas supply to the torch must be completely shut 1 hour or more Containers, valves, regulators, hose and other apparatus and fittings for oxygen must be kept free of __________. oil or grease Backfire this occurs when the flame of a torch goes out and there is a loud snap or pop Flashback This occurs when the cutting or welding flame burns inside the torch or the hoses and it is usually accompanied by a whistle or hissing noise. As soon as it is noticed, the torch control valves should be closed. This indicated there is something wrong with the equipment, either damage or blockage