What term describes the joint at seams, joints, penetrations, and duct-to-hood collar connections that shall be liquidtight?

What term describes the joint at seams, joints, penetrations, and duct-to-hood collar connections that shall be liquidtight?

• A. Weld
• B. Connection
• C. Seam
• D. Gasket

Answer: (A)

In this context, the joint that must be liquidtight is a weld. Welding fuses the metal around seams, penetrations, and duct-to-hood collar connections to create a continuous, leak-proof joint, which is why liquidtight performance is specified for that type of joint. A gasket is just a sealing material used between surfaces, not the joint method itself. A seam is a joint line that could be welded, riveted, or gasket-sealed, so it doesn’t inherently specify liquidtight performance. A general connection is too vague to guarantee a leak-proof seal.

In this context, the joint that must be liquidtight is a weld. Welding fuses the metal around seams, penetrations, and duct-to-hood collar connections to create a continuous, leak-proof joint, which is why liquidtight performance is specified for that type of joint. A gasket is just a sealing material used between surfaces, not the joint method itself. A seam is a joint line that could be welded, riveted, or gasket-sealed, so it doesn’t inherently specify liquidtight performance. A general connection is too vague to guarantee a leak-proof seal.