Paragraph comprehension · Difficulty 1
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Metal bridges expand slightly in hot weather and contract when temperatures fall. Engineers include expansion joints so sections can move without damaging the structure. The joints must remain clear to work properly. What is the main idea of the passage?
- Blocked expansion joints could contribute to structural damage.
- To explain the function of bridge expansion joints.
- Expansion joints protect bridges during temperature changes.
- Metal contracts when temperatures fall.
Reveal answer and explanation
Expansion joints protect bridges during temperature changes.
The passage supports this answer: expansion joints protect bridges during temperature changes..