OXY-FUEL
the color of the fuel hose would be what ?
red
what must be in place before moving or replacing cylinders
cylinder caps
SMAW is the acronym for what ?
Shield Metal Arc Welding
What corrective measures must be taken to correct under-cut
slower travel speed / pause longer on sides of the weld
what is considered the most important mechanical property of a metal
Hardness
oxygen connections will always have what type of thread
right handed
at what PSI must you not use acetylene above?
15 psi
Direct Current flows in what direction?
negative to positive
What is the most common method of NDT?
Visual inspection
what type of test is used to test hardness in a metal
Brinell Hardness Tester
the gauge with the higher numerical calibrations indicates
cylinder pressure
what is it called when the flame goes into the tip and continues into the torch handle
flash back
what are the two main types of welding machines?
Transformers, Generators
name 5 out of the 7 main weld defects
cracks, porosity, inclusions , incomplete fusion, undercut, incomplete penetration, dimensional
Name 4 of the 8 main mechanical properties
hardness, brittleness, ductility , elasticity, plasticity, malleability, strength, toughness
the in-line check valve that is located between the regulators and the cutting torch is called?
reverse flow check valves (flash back arrestors)
The safety device in the oxygen bottles is located where?
in the valve
"Straight Polarity" is also known as what.
Direct Current Electrode Negative (DCEN)
what method dose Radio-graphic Inspection use to show defects in the interior of welds
x-rays / gamma rays
what test is used to show Toughness or "impact strength" on metal
charpy impact test
the cutting flame used to cut mild steel is called?
a neutral flame
the temperature at which the fusible plugs melt has a range of ?
104 degrees C - 115 degrees C
The 1 in a E7018 electrode will indicate what?
welding position the rod can be used in
1 = all positions
name 4 of the eight types of NDT
Radio graphic testing, Ultrasonic testing, Magnetic Particle testing, Liquid Penetrate testing, Visual testing, Leak testing, Electromagnetic testing, Acoustic emission testing
Pig Iron is the first material produced in the iron making process. what 3 basic elements are used to produce it?
coke (a fuel source), iron ore, limestone