FDNYC G60 COMPREHENSIVE EXAM
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY SHEET
●● What certificate of fitness is required for a person conducting torch
operations using oxygen and flammable gas?
Answer: G-60
●● What is the minimum distance required between a hot work
operation and combustible materials that cannot be moved?
Answer: 35 feet
●● In what situation is a single fuel gas container allowed to be used for
hot work operations?
Answer: When using an air-fuel blowtorch
●● What is the maximum aggregate capacity of LPG containers allowed
at a construction site?
Answer: 2500 pounds
●● What are the proper methods to check gas leaks?
Answer: Using soapy water, using an approved gas detector, listening for
hissing sounds
,●● What is the minimum vertical clearance required between the top of
an LPG container and the bottom of the first stage regulator?
Answer: 60 inches
●● How often must portable fire extinguishers be visually inspected?
Answer: Monthly
●● What is the maximum allowable acetylene working pressure to
prevent decomposition?
Answer: 15 psig
●● What is the primary cause of flashback in a torch operation?
Answer: Reverse flow of gases into the hoses
●● When using an oxygen fuel torch, in what order should the gases be
turned on?
Answer: Fuel gas then oxygen
●● What is the maximum distance allowed between oxygen and fuel gas
containers that are connected for use?
Answer: 20 feet
, ●● What are the requirements for a fire guard during torch-applied
roofing system operations?
Answer: G 60
●● What is the minimum duration for which a fire watch must be
maintained after hot work operations have been completed?
Answer: 1 hour
●● In a restricted hot work area, why may hot work be conducted?
Answer: Emergency repairs, structural alterations, when the area cannot
be moved
●● A certificate of fitness is needed for connecting LPG containers of
what capacity?
Answer: Equal to or greater than 16.4 oz
●● An FDNY permit is required for storing flammable gas exceeding
how many SCF? What about for storing oxygen?
Answer: 400 SCF for flammable gas and 504 SCF for oxygen
●● How many 20 lb LPG containers require an FDNY permit?
Answer: 3
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY SHEET
●● What certificate of fitness is required for a person conducting torch
operations using oxygen and flammable gas?
Answer: G-60
●● What is the minimum distance required between a hot work
operation and combustible materials that cannot be moved?
Answer: 35 feet
●● In what situation is a single fuel gas container allowed to be used for
hot work operations?
Answer: When using an air-fuel blowtorch
●● What is the maximum aggregate capacity of LPG containers allowed
at a construction site?
Answer: 2500 pounds
●● What are the proper methods to check gas leaks?
Answer: Using soapy water, using an approved gas detector, listening for
hissing sounds
,●● What is the minimum vertical clearance required between the top of
an LPG container and the bottom of the first stage regulator?
Answer: 60 inches
●● How often must portable fire extinguishers be visually inspected?
Answer: Monthly
●● What is the maximum allowable acetylene working pressure to
prevent decomposition?
Answer: 15 psig
●● What is the primary cause of flashback in a torch operation?
Answer: Reverse flow of gases into the hoses
●● When using an oxygen fuel torch, in what order should the gases be
turned on?
Answer: Fuel gas then oxygen
●● What is the maximum distance allowed between oxygen and fuel gas
containers that are connected for use?
Answer: 20 feet
, ●● What are the requirements for a fire guard during torch-applied
roofing system operations?
Answer: G 60
●● What is the minimum duration for which a fire watch must be
maintained after hot work operations have been completed?
Answer: 1 hour
●● In a restricted hot work area, why may hot work be conducted?
Answer: Emergency repairs, structural alterations, when the area cannot
be moved
●● A certificate of fitness is needed for connecting LPG containers of
what capacity?
Answer: Equal to or greater than 16.4 oz
●● An FDNY permit is required for storing flammable gas exceeding
how many SCF? What about for storing oxygen?
Answer: 400 SCF for flammable gas and 504 SCF for oxygen
●● How many 20 lb LPG containers require an FDNY permit?
Answer: 3
