WFSM SET A VOLUME 4 URE WITH
COMPLETE SOLUTIONS
what type of fire suppression system has closed heads, is full of water, and under
pressure at all times - ANSWER-wet pipe
in a wet-pipe sprinkler system, the alarm is protected from small water surges through a
- ANSWER-bypass line
what is the first step in restoring a wet pipe sprinkler system - ANSWER-replace
damaged heads
when restoring a wet-pipe sprinkler system, any trapped air can b bled off by -
ANSWER-using the inspector's test valve
the purpose of conducting a drain flow test on a wet pipe sprinkler system si to -
ANSWER-determine if there are partially closed valves or obstructions in the distribution
system
what should you do if false alarms are being caused by pressure surges - ANSWER-
relieve trapped air pressure
what is used to dry pipe sprinkler system to keep the clapper seated - ANSWER-air
pressure
what are the two types of quick opening devices in a large dry pipe system - ANSWER-
accelerators and exhausters
how long should it take to recharge a dry pipe system during restoration - ANSWER-30
minutes
when testing a dry-pipe fire sprinkler system, your first step is to - ANSWER-notify the
fire alarm communications center
when inspecting a dry pipe sprinkler system, record and compare to previous readings
that air and water pressure and - ANSWER-temperature
how do you correct occasional trips in dry pipe systems caused by occasional water
surges - ANSWER-increase air pressure
what are the two possible positions of the differential deluge valve - ANSWER-standby
and fire
, when a deluge fire sprinkler system is operational, the main water control valve is -
ANSWER-open and the alarm valve to control devices is open
the extinguisher system that provides the same general protection similar to that of the
foam-water system is the - ANSWER-deluge system
the foam system has an advantage because of its smothering action for class -
ANSWER-B fires
in a foam system, what is mixed with the foam to control fires - ANSWER-air
the purpose of flushing the foam system is to prevent - ANSWER-corrosion
the foam system is operational when it is in the - ANSWER-standby position
1301 Halon system will not harm personnel in concentrations below - ANSWER-10
percent
dry-chemical systems are not allowed to be used for what type of fire protection
application according to Unified Facilities Criteria (UFC) UFC 3-600-01 - ANSWER-
commercial kitchens
what are the two types of backflows - ANSWER-backsiphonage and backpressure
what re the two types of cross connection - ANSWER-direct and indirect
which term is defined as an impairment of the potable water that does not adversely
affect public health - ANSWER-pollution
what AF Form is used to inventory and list every backflow device on an installation -
ANSWER-845
what AF Form is used to sketch the exact location of all devices - ANSWER-845
what type of device is the most positive (non-mechanical) against backflow - ANSWER-
air gap
the vertical space between the supply line and the flood level rim must be at least -
ANSWER-two times the diameter of the supply pipe
what is the smallest air gap allowed to prevent basksiphonage - ANSWER-1 inch
what is the correct size air gap if the supply pipe is 2 inches in diameter - ANSWER-4
inches
COMPLETE SOLUTIONS
what type of fire suppression system has closed heads, is full of water, and under
pressure at all times - ANSWER-wet pipe
in a wet-pipe sprinkler system, the alarm is protected from small water surges through a
- ANSWER-bypass line
what is the first step in restoring a wet pipe sprinkler system - ANSWER-replace
damaged heads
when restoring a wet-pipe sprinkler system, any trapped air can b bled off by -
ANSWER-using the inspector's test valve
the purpose of conducting a drain flow test on a wet pipe sprinkler system si to -
ANSWER-determine if there are partially closed valves or obstructions in the distribution
system
what should you do if false alarms are being caused by pressure surges - ANSWER-
relieve trapped air pressure
what is used to dry pipe sprinkler system to keep the clapper seated - ANSWER-air
pressure
what are the two types of quick opening devices in a large dry pipe system - ANSWER-
accelerators and exhausters
how long should it take to recharge a dry pipe system during restoration - ANSWER-30
minutes
when testing a dry-pipe fire sprinkler system, your first step is to - ANSWER-notify the
fire alarm communications center
when inspecting a dry pipe sprinkler system, record and compare to previous readings
that air and water pressure and - ANSWER-temperature
how do you correct occasional trips in dry pipe systems caused by occasional water
surges - ANSWER-increase air pressure
what are the two possible positions of the differential deluge valve - ANSWER-standby
and fire
, when a deluge fire sprinkler system is operational, the main water control valve is -
ANSWER-open and the alarm valve to control devices is open
the extinguisher system that provides the same general protection similar to that of the
foam-water system is the - ANSWER-deluge system
the foam system has an advantage because of its smothering action for class -
ANSWER-B fires
in a foam system, what is mixed with the foam to control fires - ANSWER-air
the purpose of flushing the foam system is to prevent - ANSWER-corrosion
the foam system is operational when it is in the - ANSWER-standby position
1301 Halon system will not harm personnel in concentrations below - ANSWER-10
percent
dry-chemical systems are not allowed to be used for what type of fire protection
application according to Unified Facilities Criteria (UFC) UFC 3-600-01 - ANSWER-
commercial kitchens
what are the two types of backflows - ANSWER-backsiphonage and backpressure
what re the two types of cross connection - ANSWER-direct and indirect
which term is defined as an impairment of the potable water that does not adversely
affect public health - ANSWER-pollution
what AF Form is used to inventory and list every backflow device on an installation -
ANSWER-845
what AF Form is used to sketch the exact location of all devices - ANSWER-845
what type of device is the most positive (non-mechanical) against backflow - ANSWER-
air gap
the vertical space between the supply line and the flood level rim must be at least -
ANSWER-two times the diameter of the supply pipe
what is the smallest air gap allowed to prevent basksiphonage - ANSWER-1 inch
what is the correct size air gap if the supply pipe is 2 inches in diameter - ANSWER-4
inches
