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Sprinkler system must NOT be shut off or impaired while hot work is performed - ANS Place
damp cloth guards on individual sprinkler heads
The person conducting the fire watch ______ have other duties - ANS CANNOT
A portable fire extinguisher with a rating of _________ is required and should be within ____
feet travel distance hot work area - ANS 2-A:20-B:C///30
For ROOFING OPERATIONS, a portable fire extinguisher with a minimum rating of ______ is
required - ANS 3-A:40-B:C
Fire watch on floors below is ______ - ANS required
The fire watch must continue for a minimum of ____ minutes after the hot work is done -
ANS 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. - ANS 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. - ANS 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 ______ - ANS LPG (butane, propane)
natural gas (methane) (either CNG or piped natural gasses)
Soldering and brazing temperatures are typically______ - ANS 840 degrees F
Oxy-acetylene generates the highest temperature which can reach up to _____ - ANS 6000
degrees F
Gas torches can exceed _________ and are used for burning weeds, melting ice, or applying
tar to a roof - ANS 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 - ANS 1 hour or more
, Containers, valves, regulators, hose and other apparatus and fittings for oxygen must be kept
free of __________. - ANS oil or grease
Backfire - ANS this occurs when the flame of a torch goes out and there is a loud snap or
pop
Flashback - ANS 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 _____ - ANS well ventilated
Whoever is working with hot work equipment CANNOT wear _____________ since it is
susceptible to burning and ignition - ANS frayed clothing
Empty containers must be __________ - ANS handled in the same manner as full ones
Gas containers must be replaced when empty. - ANS It is ILLEGAL to refill gas container
All gas containers, whether CNG or LPG, must be secured in an __________ - ANS upright
position and must not be stacked or stored on shelves
All gas containers and related equipment must be _________ - ANS protected from
extreme temperature and physical damage
The control valve of any gas container must be _______ - ANS opened by hand
Acetylene valves shall not be opened more than ______ - ANS 1 ½ turns
The purpose of a regulator is to ________ - ANS control the flow of gas and lower the
pressure from the container to the appliance. It also acts like a safely barrier between the high
pressure of the gas container and the end use appliance
Hoses must be as _______ protecting from mechanical injury - ANS short as practical
No hose is allowed to exceed ____feet - ANS 30
A compressed gas container MUST NOT ________ - ANS be rolled on its side or its rim,
only by approved lifting equipment
Ropes, chains or slings shall NOT be used to ________ - ANS suspend compressed gas
containers unless such containers have been designed for such handling