Gas Heat ESCO Practice Exam

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Which metal is typically used for the inner pipe of a Type B vent pipe?

  1. Aluminum

  2. Brass

  3. Copper

  4. Stainless steel

The correct answer is: Aluminum

The correct answer is aluminum. Type B vent pipes are specifically designed for gas appliances, and aluminum is commonly used for the inner pipe of these vents because it is lightweight, resistant to corrosion, and has good heat-conducting properties. This makes aluminum an ideal choice for safely venting gas appliances. Brass, copper, and stainless steel are not typically used for the inner pipe of Type B vent pipes. Brass and copper may not have the same heat-resistant properties as aluminum, while stainless steel is more commonly used for high-temperature applications where its strength and durability are more critical.

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