Limit State Method MCQ with answer and solution

Concept

Characteristic load

Formula

Characteristic load = mean + 1.64 s

Step-by-step solution

1. Characteristic load: the value with a 5% probability of being exceeded. 2. = mean + 1.64 × standard deviation.

Explanation

Loads use the upper 5% fractile; strengths use the lower 5% fractile.

Why the other options are wrong

Mean − 1.64 s is used for characteristic strength.

Shortcut

Load: +1.64 s; strength: −1.64 s.

Common mistake

Taking the lower fractile.