Test pressure gauges shall be capable of being read within ___% of test pressure correct answers
90-110
Pressure gauges used on test equipment shall be calibrated at least correct answers Semi-
annually
The temp used for drying hydro equipment shall not exceed _________ degrees inside the shell
correct answers 150 degrees
The equipment for hydrostatic testing of high pressure cylinders and cartridges (dot 3series) shall
meet the specifications of correct answers Methods of hydrostatic testing of compressed gas
cylinders
A hydrostatic test pump, hand or power operated shall be capable of producing not less than
__________ of the test pressure and shall include appropriate check valves and fittings correct
answers 150 percent
Dry chemical, stored pressure, with mild steel shells, brazed brass shells, or aluminum shells
correct answers Hydro every 12 years
Dry chemical, stored pressure, cartridge or cylinder operated with mild steel shells need to be
inspected how often?? correct answers 12 yr intervals everything else is 5yr
How often do dry chemicals with stainless steel shells need to be inspected correct answers
Every 5 years
If, at any time, a fire extinguisher shows evidence of ___________________________ to the
extent as to indicate weakness, it shall be condemned or hydrostati- cally retested correct
answers dents,
, mechanical injury,
or corrosion
The pressure in a hydrostatic test of a cylinder shall be maintained for a minimum of
__________ seconds correct answers 30
All valves, internal parts, and hose assemblies shall be removed, and the fire extinguisher shall
be emptied before testing, clear of any extinguishing agent. true or false? correct answers True
All tests shall be conducted using test fittings and adapters. true or false? correct answers True
What shall be cause for rejection or retest? correct answers drop in pressure of test gauge
indicating a leak
The hydrostatic testing of HIGH PRESSURE cylinders and cartridges shall be in accordance
with the procedures of _________ correct answers TC, DOT and CGA C-1
For hose test, Pressure shall be applied at a rate of rise such that the test pressure is reached
in____________. correct answers 1 minute
Where pressure is not specified on the extinguisher nameplate the extinguisher shall be tested at
the factory test pressure, not to exceed_________ the extinguisher service pressure. correct
answers 3 times
Cartridge operated types shall be operated at correct answers Original factory test pressure
Carbon dioxide fire extinguishers having cylinder specification ICC3 shall be tested at
________psi correct answers 3000