NFPA 10 EXAM ACTUAL EXAM COMPLETE 250
QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS) /ALREADY GRADED A+
Test pressure gauges shall be certified accurate to ___ percent or better of the full
range of the gauge. - ANSWER+/- .5
Test pressure gauges shall be capable of indicating ___ percent of the test pressure. -
ANSWER90-110
Pressure gauges used on TEST EQUIPMENT shall be calibrated at least ___. -
ANSWERSEMI-ANNUALLY
Master gauges or deadweight testers shall be calibrated at least ___. -
ANSWERANNUALLY
The temperature for drying shall not exceed ___. - ANSWER150F
Cylinders and hose assemblies shall be tested within a protective cage device or placed
behind a protective shield that permits ___ observation while under pressure for leaks
bulges and other harmful defects. - ANSWERVISUAL
A hydrostatic test pump, hand- or power-operated, shall be capable of producing not
less than ___ percent of the test pressure and shall include appropriate check valves
and fittings. - ANSWER150
A ___ connection between the test pump and the test cylinder shall be provided so that
it is possible to test through the cylinder opening, test bonnet, hose outlet, or nozzle, as
applicable. - ANSWERFLEXIBLE
Hydrostatic test intervals (WETTING agent). - ANSWER5 years
Hydrostatic test intervals (dry chemical with stainless steel shells). - ANSWER5 years
Hydrostatic test intervals (carbon dioxide). - ANSWER5 years
Hydrostatic test intervals (dry chemical cartridge or cylinder operated with mild steel
shells). - ANSWER12 years
Hydrostatic testing intervals (Dry chemical, stored-pressure, with mild steel shells,
brazed brass shells, or
,aluminum shells). - ANSWER12 years
The hydrostatic retest shall be conducted within the ___ of the specified test interval. -
ANSWERCALENDAR YEAR
Nitrogen cylinders, argon cylinders, carbon dioxide cylinders or cartridges used for inert
gas storage that are used as expellants for wheeled fire extinguishers and carbon
dioxide extinguishers shall be hydrostatically tested every? - ANSWER5 YEARS
Cylinders except those charged with carbon dioxide complying with 49 CFR 180.209B
shall be permitted to be hydrostatically tested every ___ in lieu of the requirements. -
ANSWER10 YEARS
Nitrogen cartridges, argon cartridges and carbon dioxide cartridges used as expellants
for hand portable fire extinguishers that have ___ or ___ markings shall be hydrostatic
test and replaced. - ANSWERDOT or TC
DOT 3E cartridges or TC 3EM cartridges shall be ___. - ANSWERexempt from periodic
testing
A ___ test shall be performed on fire extinguisher hose assemblies equipped with a ___
nozzle at the end of the hose. - ANSWERHYDROSTATIC, SHUTOFF
High pressure and low pressure accessory hose other than agent discharge hose used
on wheeled extinguishers shall be ___ tested. - ANSWERHYDROSTATICALLY
If, at any time, a fire extinguisher shows evidence of dents, mechanical injury, or
corrosion to the extent as to indicate weakness, it shall be ___ or ___ retested. -
ANSWERCondemned, hydrostatically
Nonrechargeable HALON agent-type fire extinguishers that show evidence of dents,
mechanical injury, or corrosion to the extent indicating weakness shall be removed from
service, shall not be discharged, and shall be returned to the manufacturer, a fire
equipment dealer, or ___ to promote recovery of the Halon. - ANSWERDISTRIBUTOR
Where repairs by soldering, welding, brazing, or use of patching compounds exist. -
ANSWERShall be condemned or destroyed by owner or owners direction
Where the cylinder threads are worn, corroded, broken, cracked, or nicked. -
ANSWERShall be condemned or destroyed by owner or owners direction
Where the fire extinguisher has been exposed to excessive heat flame or fire. -
ANSWERShall be condemned or destroyed by owner or owners direction
, Where a CALCIUM CHLORIDE-type extinguishing agent has been used in a stainless
steel fire extinguisher. - ANSWERShall be condemned or destroyed by owner or owners
direction
Where the depth of a dent exceeds 1/10 of the greatest dimension of the dent if not in a
weld or exceeds a quarter inch if the dent includes a weld. - ANSWERShall be
condemned or destroyed by owner or owners direction
The pressure in a hydrostatic test of a cylinder shall be maintained for a minimum of
___ seconds, but for a time not less than is required for complete expansion of the
cylinder and to complete the visual examination of the cylinder. - ANSWER30
All valves internal parts and hose assemblies shall be ___ and the fire extinguisher shall
be ___ before testing. - ANSWERREMOVED, EMPTIED
All types of extinguishers except the water type shall have all traces of a extinguishing
agents ___ from the inside of the extinguisher before they are filled with water. -
ANSWERREMOVED
All tests shall be conducted using ___ fittings and ___. - ANSWERTEST, ADAPTERS
The hydrostatic testing of dry chemical and dry powder fire extinguishers having an
externally mounted Gas cartridge shall have the cartridge and cartridge receiver
removed and a ___ inserted into the opening. - ANSWERPLUG
All stored pressure extinguishers shall have the valve removed from the cylinder and
replaced with a ___ or ___. - ANSWERTEST BONNET, ADAPTER
Any ___ of the cylinder shall be cause for ___. - ANSWERdistortion, rejection
A drop in pressure of the test gauge which is an indication of a ___ shall be cause for
rejection or retest. - ANSWERLEAK
Cylinders passing the hydrostatic test shall be ___ before being returned to service. -
ANSWERThoroughly dried internally
The discharge valve shall be removed from the hose assembly without ___ of any hose
couplings - ANSWERREMOVAL
The location of all ___ shall be ___ prior to the hydrostatic test. -
ANSWERCOUPLINGS, MARKED
The host shall be completely filled with ___ before testing. - ANSWERWATER
For dry chemical and dry powder types, all traces of dry chemical or dry powder? -
ANSWERShall be removed prior to testing
