FDNYC G60 CORRECT ACTUAL NEW QUESTIONS
AND ANSWERS SURE A+
✔✔Which fuel gas is commonly used in blowtorches? - ✔✔LPG (propane/butane)
✔✔What component controls the intake of air in a blowtorch? - ✔✔A valve near the
nozzle
✔✔How many separate gas containers does an oxy-fuel torch system have? - ✔✔Two
separate gas containers
✔✔What is the purpose of oxygen in an oxy-fuel torch? - ✔✔To intensify fuel burning
✔✔Why should oxygen never be used to blow dirt off clothes? - ✔✔It intensifies
potential ignition
✔✔Which fuel gas, when used with oxygen, creates the highest flame temperature? -
✔✔Acetylene gas fuel
✔✔What process involves joining two pieces of metal using heat? - ✔✔Welding process
✔✔What process involves separating metal using intense heat? - ✔✔Cutting process
✔✔What is the typical maximum temperature reached by an oxy-acetylene torch? -
✔✔6000 °F
✔✔What is the typical temperature range for soldering and brazing? - ✔✔Around 840
°F
✔✔What type of torch is often used for small tin-lead soldering jobs? - ✔✔Propane
canister torch
, ✔✔Gas torches used for roofing or melting ice can exceed what temperature? -
✔✔2000 °F
✔✔What type of flame is often used for heavy-duty applications like roofing? - ✔✔A
diffuse high-temperature flame
✔✔What must be ensured about valves and regulators before setup? - ✔✔They are
clean
✔✔Gas container valves must be accessible for what purpose during operation? -
✔✔Immediate emergency shutoff
✔✔What should be used to check for leaks after setting up an oxy-fuel torch? - ✔✔A
soap and water solution
✔✔How should the gas container valve be opened? - ✔✔Slowly to allow stabilization
✔✔What is the maximum opening for an acetylene valve? - ✔✔1 1/2 turns maximum
✔✔When turning off, what should be done after closing container valves? - ✔✔Open
torch valves to bleed
✔✔What should be done with regulator pressure screws when shutting down? -
✔✔Turn counter-clockwise until loose
✔✔If torch operation stops for 1 hour or more, what must be done? - ✔✔Close torch
and supply valves
✔✔What substance must be kept away from oxygen equipment? - ✔✔Oil or grease
✔✔Is it permissible to mix gases inside a container or transfer between containers? -
✔✔Never attempt this action
✔✔What is crucial regarding the fuel gas container valve accessibility on a blowtorch? -
✔✔Accessible for emergency shutoff
✔✔What action is required if leaks are found during blowtorch setup? - ✔✔Shut valve,
discontinue use
✔✔How should a blowtorch ideally be ignited? - ✔✔With a friction spark lighter
✔✔After closing the container valve, what is the next step in shutting down a blowtorch?
- ✔✔Open torch valve to drain
AND ANSWERS SURE A+
✔✔Which fuel gas is commonly used in blowtorches? - ✔✔LPG (propane/butane)
✔✔What component controls the intake of air in a blowtorch? - ✔✔A valve near the
nozzle
✔✔How many separate gas containers does an oxy-fuel torch system have? - ✔✔Two
separate gas containers
✔✔What is the purpose of oxygen in an oxy-fuel torch? - ✔✔To intensify fuel burning
✔✔Why should oxygen never be used to blow dirt off clothes? - ✔✔It intensifies
potential ignition
✔✔Which fuel gas, when used with oxygen, creates the highest flame temperature? -
✔✔Acetylene gas fuel
✔✔What process involves joining two pieces of metal using heat? - ✔✔Welding process
✔✔What process involves separating metal using intense heat? - ✔✔Cutting process
✔✔What is the typical maximum temperature reached by an oxy-acetylene torch? -
✔✔6000 °F
✔✔What is the typical temperature range for soldering and brazing? - ✔✔Around 840
°F
✔✔What type of torch is often used for small tin-lead soldering jobs? - ✔✔Propane
canister torch
, ✔✔Gas torches used for roofing or melting ice can exceed what temperature? -
✔✔2000 °F
✔✔What type of flame is often used for heavy-duty applications like roofing? - ✔✔A
diffuse high-temperature flame
✔✔What must be ensured about valves and regulators before setup? - ✔✔They are
clean
✔✔Gas container valves must be accessible for what purpose during operation? -
✔✔Immediate emergency shutoff
✔✔What should be used to check for leaks after setting up an oxy-fuel torch? - ✔✔A
soap and water solution
✔✔How should the gas container valve be opened? - ✔✔Slowly to allow stabilization
✔✔What is the maximum opening for an acetylene valve? - ✔✔1 1/2 turns maximum
✔✔When turning off, what should be done after closing container valves? - ✔✔Open
torch valves to bleed
✔✔What should be done with regulator pressure screws when shutting down? -
✔✔Turn counter-clockwise until loose
✔✔If torch operation stops for 1 hour or more, what must be done? - ✔✔Close torch
and supply valves
✔✔What substance must be kept away from oxygen equipment? - ✔✔Oil or grease
✔✔Is it permissible to mix gases inside a container or transfer between containers? -
✔✔Never attempt this action
✔✔What is crucial regarding the fuel gas container valve accessibility on a blowtorch? -
✔✔Accessible for emergency shutoff
✔✔What action is required if leaks are found during blowtorch setup? - ✔✔Shut valve,
discontinue use
✔✔How should a blowtorch ideally be ignited? - ✔✔With a friction spark lighter
✔✔After closing the container valve, what is the next step in shutting down a blowtorch?
- ✔✔Open torch valve to drain
