Q. The expansion joints in bridges prevent damage due to __________.

पुलों में विस्तार जोड़ __________ के कारण होने वाली क्षति को रोकते हैं।

A
Friction
टकराव
B
Overload
अधिभार
C
Thermal stress
तापीय तनाव
D
Vibration
कंपन

Explanation

Bridges are exposed to wide temperature variations. Without expansion joints, materials could develop internal stresses as they expand or contract, potentially leading to cracks or structural failure. Expansion joints absorb the motion and relieve thermal stress.

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