Earthquakes & Volcanoes MCQs for CET Graduate
Practice 20 free Earthquakes & Volcanoes questions under World Geography — Geography.
Strengthen your Earthquakes & Volcanoes knowledge for CET Graduate with curated MCQs. Switch between Hindi and English anytime.
CET Graduate — World Geography — Earthquakes & Volcanoes
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
The inability of Secondary waves (S-waves) to pass through a specific layer of the Earth provides seismologists with the definitive evidence that:
Question 2 of 20
Consider the following formulas related to seismic velocity: 1. Vp involves both the bulk modulus (K) and shear modulus (μ). 2. Vs involves only the bulk modulus (K) and density (ρ). Which of the statements is/are mathematically correct according to wave physics?
Question 3 of 20
Consider the following statements regarding P-waves and S-waves: 1. P-waves are longitudinal while S-waves are transverse. 2. Both P-waves and S-waves can travel through solid, liquid, and gaseous media. Which of the statement(s) given above is/are INCORRECT?
Question 4 of 20
Assertion (A): During an earthquake, a building situated on loose, water-saturated sand is highly likely to sink or tilt. Reason (R): Seismic shaking completely drains the water from the sand, creating large underground cavities.
Question 5 of 20
In the case of reservoir-induced seismicity, what is the exact physical effect of water seeping into underground fault lines?
Question 6 of 20
Match the depth or location given in List-I to its corresponding Seismic Feature in List-II: List-I 1. Approximately 2,900 km depth 2. Beyond 103° angular distance 3. Confined solely to surface rocks List-II A. The region of the massive S-wave Shadow Zone B. The medium of propagation for Love and Rayleigh Waves C. The Gutenberg Discontinuity separating Mantle and Core Choose the correct matching option:
Question 7 of 20
Regarding the behavior of volatile gases, what is the primary reason magma retains its dissolved gases while lava rapidly releases them?
Question 8 of 20
Which characteristic makes deep-ocean tsunamis so deceptive to maritime navigation?
Question 9 of 20
Consider the following geological features: 1. Deep oceanic trenches 2. Convergent plate boundaries 3. Frequent shallow-focus tremors from magma upwelling Which of the above features are characteristic of the Circum-Pacific Belt?
Question 10 of 20
Which specific phenomenon mimics natural earthquake signals, often requiring sophisticated seismological analysis to distinguish it from tectonic events?
Question 11 of 20
A geologist discovers an igneous rock characterized by extremely small crystals and a highly vesicular (porous) texture. What can be definitively inferred about its formational history?
Question 12 of 20
The spatial distance measured vertically between the underground origin point of an earthquake and the point directly above it on the Earth's surface is known as:
Question 13 of 20
What proportion of the Earth's surface does the S-wave shadow zone cover for any given earthquake?
Question 14 of 20
Why are Love Waves considered exceptionally damaging to the structural integrity of building foundations?
Question 15 of 20
Consider the following statements regarding the Earth's interior and seismic waves: 1. P-waves can travel through the liquid outer core. 2. When passing from the mantle into the outer core, P-waves are completely absorbed. 3. The path of P-waves changes direction at the mantle-core boundary. Which of the statements given above is/are correct?
Question 16 of 20
The volcanic activity observed in regions like Italy and parts of East Africa belongs to the Mediterranean-Himalayan Belt. This activity is fundamentally related to:
Question 17 of 20
Which famous seismic event is explicitly cited as a consequence of immense pressure accumulation at a Convergent plate subduction zone?
Question 18 of 20
What is the fundamental difference between magma and lava in geological terminology?
Question 19 of 20
Which of the following tectonic environments is exclusively associated with 'Decompression Melting'?
Question 20 of 20