Multiple Choice
The double-deck freeway at the east edge of San Francisco Bay collapsed in the 1989 Loma Prieta earthquake.Why?
A) It was too tall for its height.
B) It lacked steel reinforcing bars.
C) Strong shaking lasted for more than the 30 minutes it was designed for.
D) It was built across soft mud.
E) Water from San Francisco Bay rotted the foundation material, weakening it.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: What commonly causes severe damage in single-story
Q2: It is advisable to keep well away
Q3: Which of the following statements about the
Q5: For years before the 1989 Loma Prieta
Q6: Between developed and developing countries,why do developing
Q7: What is the approximate frequency of shaking,or
Q8: Why are strong concrete structures sometimes destroyed
Q9: What is ineffective in reducing the possibility
Q10: Buildings of different heights shake back and
Q11: Which is a major fault that often