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Pipefitting Certification Prep
what is the take out of a 10" short radius weld 90 elbow - CORRECT ANSWER
10"
acetylene bottles have fusible link that melts at what temp - CORRECT
ANSWER 220 degrees or 212 best answer
what is the pressure inside of oxygen cylinder - CORRECT ANSWER
2000lbs/2500lbs
where the tags for ox bottles are located - CORRECT ANSWER the shoulder of
the bottle
which direction does a hacksaw blade cut - CORRECT ANSWER forward
what tubing bend is used in installation of pipe - CORRECT ANSWER hickey
when handling a newly threaded piece of pipe you must be careful because its -
CORRECT ANSWER sharp
what is the purpose of the foot pedal on a pipe threading machine - CORRECT
ANSWER safety
,when welding socket weld fittings what is the process - CORRECT ANSWER
shoulder all the way then remove 1/16 from shoulder and tack weld
which code governs the installation of process piping - CORRECT ANSWER
B31.3
which valve is not appropriate as a boiler steam outlet valve on high pressure
boilers - CORRECT ANSWER ball valve
who is responsible to qualify a welder - CORRECT ANSWER employer
what temperature does an oxy cutting torch run at - CORRECT ANSWER 5438
or 6630
which stamp is required for the assembly of high pressure boilers - CORRECT
ANSWER "A" stamp
high pressure pipe welding and welder must be qualified to section of the
ASME code - CORRECT ANSWER 9
what welding position is commonly used for welding test that will qualify you for
all positions - CORRECT ANSWER 6G
what is the hardest welding position to use - CORRECT ANSWER 6
a stop valve and check valve are installed in the - CORRECT ANSWER feed
water line
, when piping up a low water cut off device to a boiler, the device must be piped to
what height in relation to the level of the gauge glass - CORRECT ANSWER no
lower than the visible part of the gauge glass
what is the minimum size of the drain pipe and the blow valve required on a low
water cut off that has a seperate float chamber - CORRECT ANSWER 3/4'
the valve that offers the least resistance to flow us the valve - CORRECT
ANSWER gate
what type of fitting must be placed in the water piping connection at every angfle
to facilitate cleaning and inspection of a water column or low water cut off -
CORRECT ANSWER cross tee fitting
which way should the pressure excerpt on the globe valve seats - CORRECT
ANSWER below
when should you change the packing on a valve with pressure behind it -
CORRECT ANSWER never
what does the packing nut prevent from leaking - CORRECT ANSWER the valve
stem
hanger rods supporting pipe 2 1/2" nps and larger shall not be less than what
diameter - CORRECT ANSWER 1/2"
a water column piped to a high pressure boiler shall be piped with a minimum size
connection of - CORRECT ANSWER 1"