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Canadian Welding Bureau
1 LEVEL
CWB Welding Inspector Certification Program
SETTING THE STANDARD IN WELDING EXCELLENCE
CANADA
CWB Welding Inspector Level 1 — Technical Knowledge
W E L D I N G SY M B O LS · P R O C E SS E S · M E TA L LU R G Y · N D E · CO D E S & STA N D A R D S
INSTITUTION Canadian Welding Bureau (CWB Group) EXAM CODE CWB Welding Inspector Level 1
PROGRAM Welding Inspector Certification (Level 1) ACADEMIC YEAR
EXAM TITLE Technical Knowledge — Final TOTAL QUESTIONS 50 Questions
Examination
CONTENT AREAS Symbols, Processes, Metallurgy, NDE, FORMAT Multiple Choice — Select the Single Best
Codes, Discontinuities Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ Questions cover welding symbols, welding processes (SMAW, GMAW, FCAW, SAW, GTAW), metallurgy, non-destructive
examination, CSA standards, and discontinuities.
▸ Correct answers and detailed rationales appear below each question for comprehensive review.
SECTION I — WELDING SYMBOLS, JOINT DESIGN & TERMINOLOGY Questions 1 – 12
1. A faying surface is defined as:
A. The exposed surface of a completed weld
B. The mating surface of a member in contact with or in close proximity to another member to which it is to be joined
C. The surface to which protective coating is applied after welding
D. The root opening between two workpieces before welding
CORRECT ANSWER B — The mating surface of a member in contact with or close to another member to be joined
RATIONALE The faying surface is the interface where two members meet or come close together at the joint. It is the
surface that will be in contact or near contact after assembly and is critical to joint fit-up. This is distinct from
the weld face (A) or root opening (D).
2. A weld symbol is drawn in contact with the reference line and:
A. Graphically represents the type of weld to be made
B. Indicates only the length of the weld
C. Shows the welding process to be used
D. Specifies the filler metal classification
CORRECT ANSWER A — Graphically represents the type of weld to be made
RATIONALE The weld symbol is the graphic element that indicates the weld type (fillet, groove, plug, etc.). It is placed on
or near the reference line. The welding process (C) and filler metal (D) are indicated elsewhere — in the tail or
by supplementary notes. The complete assembly of all elements is the welding symbol.
, 3. The vertical line of a weld symbol must always be on the:
A. Right side of the weld symbol
B. Left side of the weld symbol
C. Top of the reference line
D. Bottom of the reference line
CORRECT ANSWER B — Left side of the weld symbol
RATIONALE In welding symbol construction, the vertical line of all weld symbols (except fillet and flare groove) must
always be placed on the left side. This standardization ensures consistent interpretation across all drawings
and fabricators. Fillet and flare groove symbols are exceptions to this rule.
4. A weld symbol placed below the reference line indicates the weld is to be made on the:
A. Other side of the joint
B. Arrow side of the joint
C. Both sides of the joint
D. Field weld location
CORRECT ANSWER B — Arrow side of the joint
RATIONALE The convention is: weld symbols below the reference line = arrow side; weld symbols above the reference line
= other side. This is a fundamental rule of welding symbol interpretation. "Arrow side" means the side of the
joint to which the arrow physically points.
5. For bevel and groove welds, if the arrow has a break, the arrow is pointing toward the:
A. Plate that will receive the weld reinforcement
B. Plate to be bevelled
C. Backing bar location
D. Root face of the joint
CORRECT ANSWER B — Plate to be bevelled
RATIONALE When a break is used in the arrow line, the arrow points specifically to the member that is to be prepared
(bevelled). This is an important convention for groove and bevel weld symbols where only one member
receives edge preparation, eliminating ambiguity about which plate gets the bevel.
6. In a welding symbol with multiple reference lines, the sequence of operations starts with the line:
A. Farthest from the arrow
B. Closest to the arrow
C. In the middle of the stack
D. Containing the tail information
CORRECT ANSWER B — Closest to the arrow
RATIONALE When multiple reference lines are used, the sequence of welding operations proceeds from the line nearest
the arrow outward. The first operation is indicated on the line closest to the arrow, the second on the next
line, and so on. This convention ensures proper welding sequence communication.
Canadian Welding Bureau
1 LEVEL
CWB Welding Inspector Certification Program
SETTING THE STANDARD IN WELDING EXCELLENCE
CANADA
CWB Welding Inspector Level 1 — Technical Knowledge
W E L D I N G SY M B O LS · P R O C E SS E S · M E TA L LU R G Y · N D E · CO D E S & STA N D A R D S
INSTITUTION Canadian Welding Bureau (CWB Group) EXAM CODE CWB Welding Inspector Level 1
PROGRAM Welding Inspector Certification (Level 1) ACADEMIC YEAR
EXAM TITLE Technical Knowledge — Final TOTAL QUESTIONS 50 Questions
Examination
CONTENT AREAS Symbols, Processes, Metallurgy, NDE, FORMAT Multiple Choice — Select the Single Best
Codes, Discontinuities Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ Questions cover welding symbols, welding processes (SMAW, GMAW, FCAW, SAW, GTAW), metallurgy, non-destructive
examination, CSA standards, and discontinuities.
▸ Correct answers and detailed rationales appear below each question for comprehensive review.
SECTION I — WELDING SYMBOLS, JOINT DESIGN & TERMINOLOGY Questions 1 – 12
1. A faying surface is defined as:
A. The exposed surface of a completed weld
B. The mating surface of a member in contact with or in close proximity to another member to which it is to be joined
C. The surface to which protective coating is applied after welding
D. The root opening between two workpieces before welding
CORRECT ANSWER B — The mating surface of a member in contact with or close to another member to be joined
RATIONALE The faying surface is the interface where two members meet or come close together at the joint. It is the
surface that will be in contact or near contact after assembly and is critical to joint fit-up. This is distinct from
the weld face (A) or root opening (D).
2. A weld symbol is drawn in contact with the reference line and:
A. Graphically represents the type of weld to be made
B. Indicates only the length of the weld
C. Shows the welding process to be used
D. Specifies the filler metal classification
CORRECT ANSWER A — Graphically represents the type of weld to be made
RATIONALE The weld symbol is the graphic element that indicates the weld type (fillet, groove, plug, etc.). It is placed on
or near the reference line. The welding process (C) and filler metal (D) are indicated elsewhere — in the tail or
by supplementary notes. The complete assembly of all elements is the welding symbol.
, 3. The vertical line of a weld symbol must always be on the:
A. Right side of the weld symbol
B. Left side of the weld symbol
C. Top of the reference line
D. Bottom of the reference line
CORRECT ANSWER B — Left side of the weld symbol
RATIONALE In welding symbol construction, the vertical line of all weld symbols (except fillet and flare groove) must
always be placed on the left side. This standardization ensures consistent interpretation across all drawings
and fabricators. Fillet and flare groove symbols are exceptions to this rule.
4. A weld symbol placed below the reference line indicates the weld is to be made on the:
A. Other side of the joint
B. Arrow side of the joint
C. Both sides of the joint
D. Field weld location
CORRECT ANSWER B — Arrow side of the joint
RATIONALE The convention is: weld symbols below the reference line = arrow side; weld symbols above the reference line
= other side. This is a fundamental rule of welding symbol interpretation. "Arrow side" means the side of the
joint to which the arrow physically points.
5. For bevel and groove welds, if the arrow has a break, the arrow is pointing toward the:
A. Plate that will receive the weld reinforcement
B. Plate to be bevelled
C. Backing bar location
D. Root face of the joint
CORRECT ANSWER B — Plate to be bevelled
RATIONALE When a break is used in the arrow line, the arrow points specifically to the member that is to be prepared
(bevelled). This is an important convention for groove and bevel weld symbols where only one member
receives edge preparation, eliminating ambiguity about which plate gets the bevel.
6. In a welding symbol with multiple reference lines, the sequence of operations starts with the line:
A. Farthest from the arrow
B. Closest to the arrow
C. In the middle of the stack
D. Containing the tail information
CORRECT ANSWER B — Closest to the arrow
RATIONALE When multiple reference lines are used, the sequence of welding operations proceeds from the line nearest
the arrow outward. The first operation is indicated on the line closest to the arrow, the second on the next
line, and so on. This convention ensures proper welding sequence communication.
