AG Mechanics CDE Practice Exam

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

Prepare effectively for the AG Mechanics CDE exam with our engaging quiz. Featuring multiple-choice questions and detailed explanations, you can increase your knowledge of agricultural mechanics and develop the skills necessary for success in the competition.

Practice this question and more.

Which of the following types of pipe should have the most ventilation to the work area when welding?

Black iron
Galvanized
Plastic
Stainless steel

The correct answer is: Black iron

When welding, it is important to have proper ventilation to avoid inhaling harmful fumes. Black iron pipes are typically used for natural gas and heating systems, so they do not contain any harmful coatings. However, galvanized pipes are coated with zinc which can release toxic fumes when welded, making it important to have extra ventilation when working with them. Plastic pipes should never be welded as they can release toxic fumes and should only be joined using special techniques. Stainless steel pipes are able to be welded but also do not require significant ventilation as they do not contain any coatings that can release toxic fumes. Therefore, A (Black iron) is the correct answer as it does not require additional ventilation and is the safest option for welding.