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For an IRC class A and B loading, the impact factor for steel bridges having… — Answer & Solution | Civexa

Transportation Engineering · Bridge Engineering

Bridge Engineering MCQ with answer and solution

For an IRC class A and B loading, the impact factor for steel bridges having span more than 45 meters is taken as

Solution

Concept

Impact factor (IRC)

Step-by-step solution

1. IRC class A/B: steel bridges above 45 m: 9/(13.5 + L). 2. The key gives 0.154.

Explanation

Follows IRC.

Why the other options are wrong

Others do not follow.

Correct answer: C) 0.154

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