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Statement 1: |
The bridges are declared unsafe after a long use. |
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Statement 2: |
The bridges lose their elastic strength with time. |
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a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
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b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
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c) |
Statement 1 is True, Statement 2 is False |
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d) |
Statement 1 is False, Statement 2 is True |
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Statement 1: |
The bridges are declared unsafe after a long use. |
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Statement 2: |
The bridges lose their elastic strength with time. |
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a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
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b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
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c) |
Statement 1 is True, Statement 2 is False |
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d) |
Statement 1 is False, Statement 2 is True |
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(a) A bridge during its use undergoes alternating strains for a large number of times each day, depending upon the movement of vehicles on it when a bridge is used for long time, if losses its elastic strength. Due to which the amount strain in the bridge for a given stress will become large and ultimately, the bridge may collapse. This may not happen’s if the bridges are declared unsafe after long use. |