welding Flashcards
what cable offers the most resistence to current flow
4
what term expresses the strength of a current of electricty
amperage
when there is no current flowing in the circut but the mashine is on you can measure what
open circuit volts
what is the most common pull feed system
spool on the gun
what system maintains the arc length by auto ajusting the the amp output
constant speed wire feeder
what are the four catagories of workplace hazards
hint 4 bcep
biological chemical ergomoic phycsal
1g weld the what do you do if the keyhole is not melting evenly in the groove
adjust electrode angle force keyhole in the center
what does pipe scheual mean
wall thickness and strength
how much carbon is in high carbon steel
0.45 to 0.75
when should you change tip for cutting
when using propane
what are the modes of metal transfer
short circut, globular, spary, and pulsed
who writes codes and standers
cwb and aws
what is the ratio for different sized metal
3 to1
what is the stickout distance for cac-a
7 inch
how much graphie is to be exposed
3/4 to 2 inch
whats the psi for cac a
80 to 100 psi
for oxygen bottles when does the metal rupture disk go
3200
what hand treads do oxygen tanks have
right hand threads
how many psi does acetleye have
250 psi
what is added to acetylene to stabize it
acetone
what is the draw limit on acetylene
1/7
what hand thread is actelyne
left
what kind of fittings are you able to use with oxy acettylene
yellow brass or steel
what is the heat treated process that reduces hardness and reduces hardness and promotes toughness
tempering
what are two post weld heat treatments that involve temprutres below the lower critical temps
stress relieving and tempering
what does tempering do
it reduces hardness and promotes toughness
what drawings indicate the location of a structure on a building lot
site plans
how is a gauge mesured in an l shape
heel to center line
what drawing provides complete information for the fabrication of the part
detail drawing
what drawings provide general information on the location and dimension of structial members
framing plans
what types of drawing show the location of a major sructure components
site plans
what is the abbr for double extra heavy pipe
xxh
what does the abbr for RFSO
raised face slip on
