F-60 Study Material
_________ processes often include oxygen and fuel gas - ANS-welding and cutting
\-areas designed for hot work operations shall have floors with - ANS--areas
designed for hot work operations shall have floors with noncombustible surfaces
-paper, wood shavings, straw and fabric are examples of combustible materials
-hot work operations involving cutting or welding shall be conducted at least 35 feet
away from combustible materials and combustible waste or shall be provided with
appropriate shielding to prevent sparks, slag or heat from igniting combustibles
\25 feet rule for other hot work operation - ANS-all other hot work operations shall be
conducted at least 25 feet from combustible materials and combustible waste shall
be provided with appropriate shielding to prevent sparks, slag, or heat from igniting
exposed combustibles
\35 feet rule for cutting and welding operation - ANS-hot work operations involving
cutting or welding shall be conducted at least 35 feet from combustible materials and
combustible waste shall be provided with appropriate shielding to prevent sparks,
slag, or heat from igniting exposed combustibles
\A portable fire extinguisher with at least 2-A:20--B:C rating... - ANS-must be readily
accessible within 30 feet of the location where hot work is performed and where the
fire guards are positioned
-in case of fire, 911 must be called
\A pre-hot work check must verify the following - ANS-1-the hot work equip. is in
good working order
2-the hot work area is clear of combustibles and flammable solids
3-exposed construction is of noncombustible materials, or if combustible, is
protected
4-openings are protected
5-hot work area floors are clear of combustible waste accumulation
\A sign explaining safe handling procedures for LPG should be posted near all LPG
appliances. This sign should indicate the following: - ANS-1 how to connect all
regulators, manifolds, and hoses to containers and appliances
2 how to detect LPG leaks safely
3 how to start up and shut down the appliance and related equipment
4 the names, address, and telephone number of a local supplier
5 emergency number; 911
\A Torch-applied roof system - ANS-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
\Acetylene should never be set above ? - ANS-15 psi as the acetylene will
decompose explosively
, \All fire extinguishers installed so that? - ANS-the top of the extinguisher is not more
than 5 ft above the floor and the clearance between the bottom of the extinguisher
and the floor is less than 4in.
-in other words, no fire extinguisher is allowed to put on the floor
\Always replace the _______ - ANS-protection cap
the protective cap is shaped like an inverted cup
-LPG containers have a collar
\Annual Fire extinguisher check - ANS-at least annually, all portable fire
extinguishers must be checked by a W-96 C of F holder from FDNY approved
company
\Any single CNG container must not exceed... - ANS-381 SCF
\Any single standard LPG must not exceed... - ANS-100 lbs in weight
\At a construction site and torch-applied roofing system operation... - ANS-every
torch operator must also have a person performing fire watch by a F-60 fire guard
-EXCEPTION... the single fire guard may be designated to conduct a fire watch for
more than one torch operation on the same floor or level if each torch operation is
not more than 50 feet from the fire guard, as measured by the actual path of travel,
and the field of view of such fire guard encompasses all of the horizontal fire
exposures of such torch operations
\Avoid ___ or _____ - ANS--containers, valve, regulators, hose and other apparatus
and fittings for oxygen must kept free of oil or grease
\Away from temperature and physical damage - ANS--all gas containers and the
related equipment must be protected from extreme temperature and physical
damage
-high temperature can cause the pressure inside the container to increase to a
dangerous level (125 degrees F)
\Backfire (common problems occur with torch operations) - ANS--this occurs when
the flame on the torch goes out unexpectedly.
-loud snap or pop may occur when the flame goes out
-sometimes the flame will quickly relight
-this happens when the working surface area is hot enough to reignite the flame
\Brazing and Soldering - ANS-soldering and brazing temps are typically 840 degrees
F
soldering or brazing typically involves smaller components to be joined and "softer"
metals such as lead, tin or silver
\Causes of backfire - ANS--touching the nozzle tip against the working surface
-overheating the nozzle tip
-the oxygen and/or the fuel gas is set at the wrong pressure
-the cutting or welding tip is loose or dirty
-dirt on the work surface
-kinks or blockages in the hoses
-the nozzle tip is damaged and not seated properly in the torch head
_________ processes often include oxygen and fuel gas - ANS-welding and cutting
\-areas designed for hot work operations shall have floors with - ANS--areas
designed for hot work operations shall have floors with noncombustible surfaces
-paper, wood shavings, straw and fabric are examples of combustible materials
-hot work operations involving cutting or welding shall be conducted at least 35 feet
away from combustible materials and combustible waste or shall be provided with
appropriate shielding to prevent sparks, slag or heat from igniting combustibles
\25 feet rule for other hot work operation - ANS-all other hot work operations shall be
conducted at least 25 feet from combustible materials and combustible waste shall
be provided with appropriate shielding to prevent sparks, slag, or heat from igniting
exposed combustibles
\35 feet rule for cutting and welding operation - ANS-hot work operations involving
cutting or welding shall be conducted at least 35 feet from combustible materials and
combustible waste shall be provided with appropriate shielding to prevent sparks,
slag, or heat from igniting exposed combustibles
\A portable fire extinguisher with at least 2-A:20--B:C rating... - ANS-must be readily
accessible within 30 feet of the location where hot work is performed and where the
fire guards are positioned
-in case of fire, 911 must be called
\A pre-hot work check must verify the following - ANS-1-the hot work equip. is in
good working order
2-the hot work area is clear of combustibles and flammable solids
3-exposed construction is of noncombustible materials, or if combustible, is
protected
4-openings are protected
5-hot work area floors are clear of combustible waste accumulation
\A sign explaining safe handling procedures for LPG should be posted near all LPG
appliances. This sign should indicate the following: - ANS-1 how to connect all
regulators, manifolds, and hoses to containers and appliances
2 how to detect LPG leaks safely
3 how to start up and shut down the appliance and related equipment
4 the names, address, and telephone number of a local supplier
5 emergency number; 911
\A Torch-applied roof system - ANS-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
\Acetylene should never be set above ? - ANS-15 psi as the acetylene will
decompose explosively
, \All fire extinguishers installed so that? - ANS-the top of the extinguisher is not more
than 5 ft above the floor and the clearance between the bottom of the extinguisher
and the floor is less than 4in.
-in other words, no fire extinguisher is allowed to put on the floor
\Always replace the _______ - ANS-protection cap
the protective cap is shaped like an inverted cup
-LPG containers have a collar
\Annual Fire extinguisher check - ANS-at least annually, all portable fire
extinguishers must be checked by a W-96 C of F holder from FDNY approved
company
\Any single CNG container must not exceed... - ANS-381 SCF
\Any single standard LPG must not exceed... - ANS-100 lbs in weight
\At a construction site and torch-applied roofing system operation... - ANS-every
torch operator must also have a person performing fire watch by a F-60 fire guard
-EXCEPTION... the single fire guard may be designated to conduct a fire watch for
more than one torch operation on the same floor or level if each torch operation is
not more than 50 feet from the fire guard, as measured by the actual path of travel,
and the field of view of such fire guard encompasses all of the horizontal fire
exposures of such torch operations
\Avoid ___ or _____ - ANS--containers, valve, regulators, hose and other apparatus
and fittings for oxygen must kept free of oil or grease
\Away from temperature and physical damage - ANS--all gas containers and the
related equipment must be protected from extreme temperature and physical
damage
-high temperature can cause the pressure inside the container to increase to a
dangerous level (125 degrees F)
\Backfire (common problems occur with torch operations) - ANS--this occurs when
the flame on the torch goes out unexpectedly.
-loud snap or pop may occur when the flame goes out
-sometimes the flame will quickly relight
-this happens when the working surface area is hot enough to reignite the flame
\Brazing and Soldering - ANS-soldering and brazing temps are typically 840 degrees
F
soldering or brazing typically involves smaller components to be joined and "softer"
metals such as lead, tin or silver
\Causes of backfire - ANS--touching the nozzle tip against the working surface
-overheating the nozzle tip
-the oxygen and/or the fuel gas is set at the wrong pressure
-the cutting or welding tip is loose or dirty
-dirt on the work surface
-kinks or blockages in the hoses
-the nozzle tip is damaged and not seated properly in the torch head
