1|Page
CWB WELDING INSPECTOR LEVEL 2 EXAM NEWEST
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||NEW VERSION!!
What is the term used to describe the following condition
of lost corrosion resistance?
"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 - Answer-(D) Sensitization
Note: Also known as "carbide precipitation" -- Chromium
binds to carbides, and "sweats out" at the grain
boundaries
On a radiograph, undercut appears as a _________ line.
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(A) light
(B) dark - Answer-(B) dark
What is the Canadian Standard for safety in welding? -
Answer-CSA W117.2
What is the typical three-phase input voltage in most
Canadian welding shops? - Answer-600V
True or False: The cable from the workpiece back to the
welding machine is called the "ground lead". - Answer-
False. The correct term is the "work lead".
What is the type of radiation that can damage living cells?
- Answer-Ionizing
Name two examples of ionizing radiation. - Answer-X-rays
and Gamma rays
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What is the minimum suggested shade for a welding
helmet when using 5/32 SMAW electrode at 150 A? -
Answer-Shade 10
Approx. how far could spatter travel when welding/cutting
from 2.5m high? - Answer-Possibly up to 6m
What is the toxic component contained in some copper
alloys? - Answer-Beryllium
Which welding process will likely have the highest fume
generation rate?
[SMAW / SAW / FCAW] - Answer-FCAW
What do the terms TLV and TWA stand for? - Answer-TLV:
Threshold limit value
TWA: Time weighted average
Is helium lighter or heavier than air? - Answer-Lighter
, 4|Page
The action of UV light on oxygen produces which toxic
gas? - Answer-Ozone
Which common fuel gas has the widest range where it can
become flammable when mixed with air? - Answer-
Acetylene
What substance should you NEVER apply to a stiff
pressure-adjusting screw on an oxygen regulator? -
Answer-Oil or grease
What is the maximum gauge pressure that acetylene
should be used? (kPa/psi) - Answer-103 kPa (15 psi)
Which toxic gas is produced when welding on surfaces
with chlorinated hydrocarbon solvents? - Answer-
Phosgene gas
What is the typical max. OCV of an AC welding machine?
- Answer-80 V
CWB WELDING INSPECTOR LEVEL 2 EXAM NEWEST
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||NEW VERSION!!
What is the term used to describe the following condition
of lost corrosion resistance?
"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 - Answer-(D) Sensitization
Note: Also known as "carbide precipitation" -- Chromium
binds to carbides, and "sweats out" at the grain
boundaries
On a radiograph, undercut appears as a _________ line.
,2|Page
(A) light
(B) dark - Answer-(B) dark
What is the Canadian Standard for safety in welding? -
Answer-CSA W117.2
What is the typical three-phase input voltage in most
Canadian welding shops? - Answer-600V
True or False: The cable from the workpiece back to the
welding machine is called the "ground lead". - Answer-
False. The correct term is the "work lead".
What is the type of radiation that can damage living cells?
- Answer-Ionizing
Name two examples of ionizing radiation. - Answer-X-rays
and Gamma rays
,3|Page
What is the minimum suggested shade for a welding
helmet when using 5/32 SMAW electrode at 150 A? -
Answer-Shade 10
Approx. how far could spatter travel when welding/cutting
from 2.5m high? - Answer-Possibly up to 6m
What is the toxic component contained in some copper
alloys? - Answer-Beryllium
Which welding process will likely have the highest fume
generation rate?
[SMAW / SAW / FCAW] - Answer-FCAW
What do the terms TLV and TWA stand for? - Answer-TLV:
Threshold limit value
TWA: Time weighted average
Is helium lighter or heavier than air? - Answer-Lighter
, 4|Page
The action of UV light on oxygen produces which toxic
gas? - Answer-Ozone
Which common fuel gas has the widest range where it can
become flammable when mixed with air? - Answer-
Acetylene
What substance should you NEVER apply to a stiff
pressure-adjusting screw on an oxygen regulator? -
Answer-Oil or grease
What is the maximum gauge pressure that acetylene
should be used? (kPa/psi) - Answer-103 kPa (15 psi)
Which toxic gas is produced when welding on surfaces
with chlorinated hydrocarbon solvents? - Answer-
Phosgene gas
What is the typical max. OCV of an AC welding machine?
- Answer-80 V
