Question 1
Which chemistry concept explains oxidation during cutting processes?
Show answer & explanation
Correct answer: A - Oxidation-reduction reactions involving oxygen transfer
10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The CWEng exam has 163 questions and runs 9 hours 30 minutes.
These 10 free CWEng questions are organized by exam domain, so you can see how each part of the Certified Welding Engineer blueprint is tested. Reveal the answer and explanation under each question.
Which chemistry concept explains oxidation during cutting processes?
Correct answer: A - Oxidation-reduction reactions involving oxygen transfer
A tensile specimen yields at 350 MPa and reaches 500 MPa ultimate strength. What is true?
Correct answer: A - Plastic deformation occurs before ultimate tensile strength is reached
Why is radiography useful for weld examination?
Correct answer: A - It can reveal internal discontinuities through radiation absorption differences
A constant-voltage welding power source is characterized by which behavior?
Correct answer: A - Current changes compensate for arc-length changes to help maintain arc length
Hydrogen-assisted cracking in a low-alloy steel weld is most associated with which combination?
Correct answer: A - Formation of hard martensitic HAZ, diffusible hydrogen, and restraint
Which weld design concern is increased by stress concentration?
Correct answer: A - Fatigue crack initiation and propagation
A fabrication drawing lacks a clear weld joint preparation requirement. What should occur first?
Correct answer: A - Clarify the drawing requirement before fabrication
Checking weld dimensions and visible discontinuities before advanced NDE is what activity?
Correct answer: A - Visual examination
A welder works outside the qualified variables of the qualification record. What is the concern?
Correct answer: A - The welder may need qualification for the applicable variables
A proposed filler metal change is made to a qualified welding procedure. What must be evaluated first?
Correct answer: A - Whether the change is permitted by qualified procedure requirements
The CWEng exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,020 more CWEng questions with explanations.
Continue in the free practice test →
View plans