Download fdny g60 PRACTICE TEST/quick and easy pass questions and answers and more Exams Mechanical Engineering in PDF only on Docsity!
fdny g60 PRACTICE TEST/quick and easy pass
questions and 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/// 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 A hot work area should be _____ - well ventilated
A compressed gas container MUST NOT ________ - be rolled on its side or its rim, only by approved lifting equipment Ropes, chains or slings shall NOT be used to ________ - suspend compressed gas containers unless such containers have been designed for such handling CNG and LPG containers must be located _______ - away from electric power lines, piping containing flammable or combustible liquids, piping containing flammable gasses, and piping containing oxidizing materials Fuel gas or oxygen containers in storage must be separated from any combustible materials by a minimum distance of _____ - 20 feet Oxidizing gasses shall NOT be stored or used or come in contact with _______ - oil, grease or other petroleum bases A permit is required for any storage area storing any flammable gas in excess of ____ or any oxygen in excess of ____ - 400 SCF///504 SCF Copper tubing should NEVER ______ - be used to splice the acetylene hose because the copper with react with the acetylene and it can cause an explosion NEVER set the regulator for LPG above ____ as the acetylene will decompose explosively - 15 PSI Examples of LPG - Propane, propylene, butane, and butylene Most commonly used LPG is ____ - butane and propane
LPG is most commonly referred to as _____ - bottled gas LPG is naturally _______ - colorless and odorless LPG is heavier than _____ - air LPG containers must be tested by DOT approved vendors every _______ - 5 years LPG containers can be a maximum weight of _____ - 100 pounds LPG must be only used in _________, not underground - well ventilated areas LPG containers with a weight of _______ shall be provided with transportation plugs - 20 pounds CNG is mainly composed of ____ - Methane Any single CNG container MUST NOT exceed ______ - 381 SCF The C of F holder MUST NOT _______ - attempt to do any repairs, but only take the equipment out of service Always check leaks with _______ - SOAP AND WATER PASS - Pull, Aim, Squeeze, Sweep
