Red Seal Welding Practice Exam

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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.

Which shielding gas may require an in-line heater at high flow rates?

Argon
Helium
CO2
Nitrogen

The correct answer is: CO2

Carbon dioxide (CO2) gas can create frost and ice buildup when used at high flow rates, which can cause blockages and damage equipment. An in-line heater is used to prevent this issue and ensure smooth and efficient flow of the gas. Argon, helium, and nitrogen do not have the same issue with high flow rates and therefore would not require an in-line heater.