Welded Connections MCQ with answer and solution

Concept

Welding process for thick plates

Step-by-step solution

1. Thick plates need deep penetration and high heat input, achieved by arc welding. 2. Shielded metal arc welding is the common process at construction sites for thick structural plates.

Explanation

Shielded metal arc welding (SMAW) gives high heat input and deep penetration, so it is widely used for structural steel work, including thick plates. Gas welding is slow and suitable for thin sheets, and resistance welding is for thin sheets and spot joints.

Shortcut

Thick plates → arc welding.

Common mistake

Choosing gas welding because it is a traditional process.