What failure occurred in the St. Francis Dam in 1928 due to overlooked geology?
A. Overburden collapse
B. Weak metamorphic rock at abutment
C. Fault movement
D. Sediment clogging
Answer: Option B
Solution (By Examveda Team)
The dam failed catastrophically due to a weak schist layer at the dam abutment, which was not properly identified or supported.Which geotechnical failure occurred in the 1963 Vajont Dam disaster in Italy?
A. Overtopping of dam
B. Foundation failure
C. Landslide into reservoir
D. Earthquake-induced cracking
What was the main geological issue in the Panama Canal expansion project?
A. Lava flow
B. Marine sediment instability
C. Hard rock tunneling
D. Seismic liquefaction
In the case of the Leaning Tower of Pisa, what caused the leaning?
A. Uneven settlement due to clayey soil
B. Earthquake damage
C. Poor construction material
D. Tectonic movement
Which engineering technique stabilized the Hong Kong slopes after landslide disasters?
A. Tunneling
B. Shotcreting and soil nailing
C. Earth reinforcement
D. Floating raft foundation
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