1 THROUGH 22) NEWEST ACTUAL EXAM COMPLETE
200+ QUESTIONS AND CORRECT DETAILED ANSWERS &
RATIONALES.
Terms in this set (203)
What is the term used to (D) Sensitization
describe the following
condition of lost corrosion Note: Also known as "carbide precipitation" -Chromium
resistance? binds to carbides, and "sweats out" at the grain
boundaries
"When certain stainless
steels are heated between
500-850° C, carbides form at
the grain boundaries and
cause a local depletion of
chromium."
(A) Oxidization
(B) Increased
toughness(C) Solution heat
treatment
(D) Sensitization
On a radiograph, undercut (B) dark
appears as a _________ line.
(A) light
(B) dark
CSA W117.2
What is the Canadian
Standard for safety in
welding?
,What is the typical 600V
threephase input voltage in
most Canadian welding
shops?
True or False: The cable from False. The correct term is the "work lead".
the workpiece back to the
welding machine is called
the "ground lead".
What is the type of radiation Ionizing
that can damage living cells?
Name two examples of X-rays and Gamma rays
ionizing radiation.
What is the minimum Shade 10
suggested shade for a
welding helmet when
using 5/32 SMAW
electrode at 150 A?
Approx. how far could Possibly up to 6m
spatter travel when
welding/cutting from 2.5m
high?
What is the toxic Beryllium
component contained in
some copper alloys?
Which welding process will FCAW
likely have the highest fume
generation rate?
[SMAW / SAW / FCAW]
What do the terms TLV and TLV: Threshold limit value
TWA stand for? TWA: Time weighted average
, Is helium lighter or heavier Lighter
than air?
The action of UV light on Ozone
oxygen produces which
toxic gas?
Which common fuel gas has Acetylene
the widest range where it
can become flammable when
mixed with air?
What substance should you Oil or grease
NEVER apply to a stiff
pressure-adjusting screw on
an oxygen regulator?
What is the maximum 103 kPa (15 psi)
gauge pressure that
acetylene should be
used? (kPa/psi)
Which toxic gas is produced Phosgene gas
when welding on surfaces
with chlorinated
hydrocarbon solvents?
What is the typical max. 80 V
OCV of an AC welding
machine?
30°
In an isometric drawing, the
lines (for width, length and
depth) are inclined at an
angle of how many degrees?