piping systems valves construction and operation materials intro to welding inspection of welds
100
What is B31.1 and B31.3
ASME piping codes are filed under this number
100
What is teflon
valve packing often made of this material used to coast frying pans
100
What is bearing
babbits are primarily used in the construction of this
100
What is prevent leakage
a seal weld is not designed for strength, its only purpose is to do this
100
What is not cleaning weld between passes
a slag inclusion occurs because of this oversight
200
What is Stainless steel
van stone flanges are generally constructed from this material or other expensive metals
200
What is a pressure reducing valve
this variety of valve has a by-pass, isolating valves before and after, and a pressure gauge with a safety valve on the low pressure side
200
What is cast iron
steel that has a carbon content greater than 2% is considered this
200
What is SMAW
stick welding is under this asme designation
200
What is a lamination
some indication such as this are difficult to find while using a penetrameter
300
What is 1650
refractory fibre's temperature limit reaches temperatures as high as this
300
What is a regulator
a strainer is generally installed upstream of this device
300
What is brinell hardness test
this type of test uses a 10 mm tungsten carbide ball pressed with a 3000 kg load for ferrous materials. the indent created by the ball is measured.
300
What is C2H2
this is the chemical name for acetylene
300
What is the piezoelectric effect
a transducer uses this effect to vibrate a quartz wafer
400
What is a 35 degree angle
the angle of bevel in a pipe to be welded
400
What is butterfly valve
these valves have two body style: lug and wafer
400
What is high pH refractory
BOF stands for basic oxygen furnace, it is called basic for the reason that it has these qualities in the furnace lining
400
What is a down hand
a code 4 welding position indicates that the weld is only to be done in this position
400
What is a pennie
another name for penatremeter
500
What is DN 50 (NPS 2)
screwed connections are generally used for pipes sizes less than this
500
What is 69 000 kPa (nice)
ball valves can be manufactured in sizes 3 to 1000 mm and can be rated up to this pressure
500
What is 12% chromium
steel is considered stainless if it has this percentage or higher of this element
500
What is DCEP or straight polarity
welding with a DC power supply set up this way causes 2/3 of the heat to transfer into the parent metal.
500
What is couplant
a fluid used to permit the ultrasound signal to exit the transducer and enter the specimen






welding and piping

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