Step 1: Identify the function of SHAKE.
SHAKE is a prevalent geotechnical earthquake engineering software designed for 1-D ground response analysis via wave propagation.
Step 2: Evaluate available options.
- (A) ETAB: Focuses on structural modeling and design, not specifically 1-D wave propagation.
- (B) SHAKE: Specifically designed for 1-D site response analysis using wave propagation. This aligns with the purpose.
- (C) STAAD: A general structural analysis program.
- (D) PLAXIS: Finite element software for soil and rock mechanics, not restricted to 1-D wave propagation.
Step 3: Determine the correct choice.
Consequently, option (B) SHAKE is the accurate selection.
Sequentially arrange the reactions of observers and type of damage during an earthquake in the increasing order of earthquake intensity measured at Modified Mercalli Intensity (MMI) Scale.
A. Earthquake is felt quite noticeably indoors, especially on upper floors of buildings. Damage: No damage. Standing motor cars may rock slightly.
B. Everyone runs outdoors. Noticed by persons driving motor cars. Damage: Considerable damage in poorly built or badly designed structures.
C. Earthquake is not felt except by a few people under especially favorable circumstances. Damage: No damage.
D. Earthquake is felt by nearly everyone, many awakened. Damage: Some dishes, windows broken, few cracks in plaster, unstable objects overturned.
