Red Seal Welding Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Enhance your skills for the Red Seal Welding Exam. Get ready with multiple choice questions and in-depth explanations. Achieve your certification with confidence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the rule of thumb for tungsten end prep?

3x E ø
2.5x E ø
2x E ø
1.5x E ø

The correct answer is: 2.5x E ø

The rule of thumb for tungsten end prep is 2.5 times the electrode diameter (ø). This is because tungsten is a very hard and brittle metal, so a larger end prep helps prevent cracking and chipping during welding. Option A, 3 times the diameter, and option C, 2 times the diameter, may both be considered too extreme and could result in unnecessary waste of the electrode. Option D, 1.5 times the diameter, may not provide enough surface area for proper arc stability and control. Therefore, option B is the best choice.