In a fillet welded connection of steel structures, the sides containing the right angle of the fillet are called
- Aroots
- BlegsCorrect
- Ctoes
- Dthroats
Solution
Concept
A fillet weld has a root, two legs, two toes, a throat and a face.
Step-by-step solution
1. A fillet weld has a near-triangular cross-section. 2. The two sides that form the right angle lie along the faces of the joined plates. 3. These two sides are called the legs of the weld. 4. So the answer is (B) legs.
Explanation
In a fillet weld, the two sides that make the right angle are called legs. The leg length is the size of the weld. The other parts are the root, the toes and the throat.
Why the other options are wrong
A: Root is the deepest point where the two plates meet, not a side. C: Toes are the points where the weld face meets the plate surface. D: Throat is the shortest distance from the root to the weld face, not a side.
Shortcut
Two sides of the right angle = legs; leg length = weld size.
Common mistake
Mixing up throat and leg. Throat is about 0.7 × leg size for a 90° fillet weld.
Correct answer: B) legs