Study for the BICSI OSP Design Test. Prepare using multiple choice questions, with hints and explanations to enhance understanding. Succeed in your exam journey!

Multiple Choice

Expansion anchors are classed as 2 or 4 way depending on what feature?

The feature used to classify expansion anchors as two-way or four-way is the number of expanding blades (wings) the anchor has. With two blades, expansion occurs in two directions, giving a two-way pull-out pattern; with four blades, expansion occurs in four directions, providing higher resistance and a four-way pattern. So the blade count directly determines the classification, while factors like diameter or length affect overall strength but don’t define the two-way versus four-way labeling.

The feature used to classify expansion anchors as two-way or four-way is the number of expanding blades (wings) the anchor has. With two blades, expansion occurs in two directions, giving a two-way pull-out pattern; with four blades, expansion occurs in four directions, providing higher resistance and a four-way pattern. So the blade count directly determines the classification, while factors like diameter or length affect overall strength but don’t define the two-way versus four-way labeling.