How is a plate dog used?

• A. It clamps onto a flat shell-plate, for lifting the plate into position
• B. It seals plate edges
• C. It drills holes
• D. It measures thickness

Answer: (A)

Plate dogs are tools used to grip and position flat plates during boiler plate assembly. They provide a secure clamping point on a flat shell plate so you can lift the plate into position or hold it steady while it’s being aligned, riveted, or bolted. This makes handling large, heavy plates safer and more precise. They aren’t used to seal edges, drill holes, or measure thickness, since those tasks require other tools.