a split hammer is best repaired by - ANS-removing or replacing it
when pre heating for frame cutting the metal should be heated to - ANS-kindling point
which type of material offers the best protection against sparks and molten slag - ANS-leather
what is the definition of a sling angle - ANS-the angle formed by the legs to the horizontal plane
bouncing or heavy vibration of the work piece when grinding are a indication of - ANS-out of
round
how should you check for leaks on oxyfuel equipment - ANS-apply suitable leak dictation
photoelectic cell computer controls are used with - ANS-Electronic
which of the following can cause a quenched and brittle condition - ANS-Stray arc
when entering a confined if gas was precent you must wear - ANS-respiratory equipment
for efficient welding and cutting operations, oxygen must have a purity of - ANS-99.5%
a torch that converts from welding and cutting operations by changing its tip is called - ANS-a
combination torch
signal that indicates lower the boom and raise load - ANS-thumb pointing down and fingers
moving back and forth
if you have to carry a heavy object what is the best way to do so - ANS-hold close to your body
Aws Class system R60 stands for - ANS-60,000 minimum tensile strength
why is it important to fit test a respirator? - ANS-to prevent leaks of contaminated air
when shutting down oxyfuel outfit you should - ANS-close the cylinder valves and bleed the
system
the critical pressure of c02 H2 is - ANS-28 PSI
where is the Centre of gravity of an object located - ANS-At the point at which the object
balances
, a V block should be used when drilling holes in - ANS-Round material
which of the following is a very Hazardous procedure - ANS-transferring actylene from one
cylinder to another
cutting edge on a cold chisel should be _______ for softer materials and _____ for hard
materials - ANS-60 degree and 90 degree
what to do when sending out unsolicited resumes - ANS-include information in the cover letter
to indicate contact information
main purpose of a flow meter - ANS-maintain constant flow of gas
stickout distance is between the - ANS-End of contact tip and unmelted electrode
voltage sensing wire feeder set their speed according to - ANS-Arc control
push-pull guns are an advantage when - ANS-soft wires are taken throw long liners
recommended electrode extension for FCAW wire in flat position - ANS-3/8 to 3/4
what is a stringer bead - ANS-no side to side motion
weld progression for first pass on 3F - ANS-Downhill
how will penetration be affected when stickout is increased - ANS-will decrease penetration
what is the recommended gun angle on a groove weld? - ANS-1/2 included joint angle
why are back-up bar often employed on FCAW groove welds - ANS-it is difficult to control
penetration
type of wire drive system that allows greater machine to work distances - ANS-push pull system
when is DCEN used with SAW - ANS-when shallower penetration is required
What part of FCAW equipment requires the most ongoing maintenance - ANS-gun and cable
assembly
recommended gun angle for first pass on 2F - ANS-45 degrees to the vertical and horizontal
plans
very fine droplets of metal transferred across an arc in axial fashion - ANS-Spray transfer