AWS CERTIFIED WELDING INSPECTOR
(CWI) CHAPTERS 1–3 STUDY GUIDE (2026
EDITION) | COMPREHENSIVE PRACTICE
QUESTIONS & VERIFIED ANSWERS WITH
DETAILED RATIONALES | PART A
FUNDAMENTALS EXAM PREPARATION
The CWI exam has several parts:- CORRECT ANSWER -Fundamentals,
Practical, Code
The CWI exam requires that the AWS D1.1 code be used for the open code
book test.- CORRECT ANSWER -False
Pitch Distance- CORRECT ANSWER -Center to Center distance for
intermittent fillet weld.
CWI certification certifies an individual to perform:- CORRECT ANSWER -
Visual Inspection
MSDS- CORRECT ANSWER -Material Safety Data Sheet
TLV- CORRECT ANSWER -Threshold Limit Value
, Employers must make all applicable MSDS data available to their
employees.- CORRECT ANSWER -True
Personnel must be trained to recognize safety hazards.- CORRECT ANSWER
-True
Hot Work Permit required for:- CORRECT ANSWER -Areas where a fire
hazard may occur during a welding, cutting, or preheating operation
Weldment- CORRECT ANSWER -assembly whose component parts are
joined by welding
Some toxic materials the welder may be exposed to:- CORRECT ANSWER -
Cadium, Chromium, Nickel, Lead
Standard- CORRECT ANSWER -term that applies collectively to codes,
specifications, and recommended practices
Oxygen is a flammable gas.- CORRECT ANSWER -False
When operating gas cylinders, the primary valve should be opened:-
CORRECT ANSWER -One turn or less for acetylene, all the way for oxygen to
backseat the valve.
(CWI) CHAPTERS 1–3 STUDY GUIDE (2026
EDITION) | COMPREHENSIVE PRACTICE
QUESTIONS & VERIFIED ANSWERS WITH
DETAILED RATIONALES | PART A
FUNDAMENTALS EXAM PREPARATION
The CWI exam has several parts:- CORRECT ANSWER -Fundamentals,
Practical, Code
The CWI exam requires that the AWS D1.1 code be used for the open code
book test.- CORRECT ANSWER -False
Pitch Distance- CORRECT ANSWER -Center to Center distance for
intermittent fillet weld.
CWI certification certifies an individual to perform:- CORRECT ANSWER -
Visual Inspection
MSDS- CORRECT ANSWER -Material Safety Data Sheet
TLV- CORRECT ANSWER -Threshold Limit Value
, Employers must make all applicable MSDS data available to their
employees.- CORRECT ANSWER -True
Personnel must be trained to recognize safety hazards.- CORRECT ANSWER
-True
Hot Work Permit required for:- CORRECT ANSWER -Areas where a fire
hazard may occur during a welding, cutting, or preheating operation
Weldment- CORRECT ANSWER -assembly whose component parts are
joined by welding
Some toxic materials the welder may be exposed to:- CORRECT ANSWER -
Cadium, Chromium, Nickel, Lead
Standard- CORRECT ANSWER -term that applies collectively to codes,
specifications, and recommended practices
Oxygen is a flammable gas.- CORRECT ANSWER -False
When operating gas cylinders, the primary valve should be opened:-
CORRECT ANSWER -One turn or less for acetylene, all the way for oxygen to
backseat the valve.
