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Earthquakes & Volcanoes MCQs for Rajasthan SI

Practice 20 free earthquakes & volcanoes multiple choice questions for Rajasthan SI exam. Instant answers, explanations in Hindi and English, and topic-wise targeted practice.

Master Earthquakes & Volcanoes under World Geography for Rajasthan SI with our curated MCQ set. Every question is sourced from real Rajasthan exam patterns and updated regularly. Switch between Hindi and English anytime. Use this daily to strengthen weak areas before the exam.

Rajasthan SI — World Geography — Earthquakes & Volcanoes

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

Match List I (Geographical Region) with List II (Dominant Tectonic Setting) and select the correct answer: List I: a. Ring of Fire b. Mid-Atlantic Ridge c. Hawaiian Islands List II: 1. Mantle Hotspot 2. Divergent Boundary 3. Subduction Zone

Question 2 of 20

What is the primary trigger for the formation of a tsunami?

Question 3 of 20

Choose the incorrect statement regarding different types of volcanoes:

Question 4 of 20

Assertion (A): Intrusive plutonic landforms such as batholiths and laccoliths are not immediately visible on the Earth's surface at the time of their formation. Reason (R): They form when magma cools and solidifies deep inside the Earth's crust, requiring millions of years of erosion to remove the overlying rock layers.

Question 5 of 20

Which specific seismic waves exhibit a longitudinal, compressional 'push-pull' motion that operates parallel to their wave propagation?

Question 6 of 20

Which specific mechanical quality of liquids and gases makes them incapable of propagating S-waves?

Question 7 of 20

Deep-focus earthquakes, despite releasing immense energy, often cause minimal damage to human structures directly above at the epicenter. Why is this?

Question 8 of 20

Which specific tectonic scenario is characterized by lithospheric plates sliding horizontally past each other, locking due to friction, and releasing immense stress in a sudden jolt?

Question 9 of 20

Assertion (A): Magma is not typically present as a permanent, continuous liquid layer underneath the Earth's crust. Reason (R): Magma generation requires specific geological triggers, such as decompression or flux melting, rather than existing as a global molten sea.

Question 10 of 20

Match List I (Volcano Type) with List II (Key Feature/Example) and select the correct answer: List I: a. Shield Volcano b. Composite Volcano c. Flood Basalt d. Caldera List II: 1. Deccan Traps 2. Hawaiian Islands 3. Magma chamber collapses, leaving circular depression 4. Mt. St. Helens

Question 11 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 12 of 20

Which of the following types of volcanoes are characterized by broad, gently sloping sides and are typically non-explosive?

Question 13 of 20

A seismograph station positioned at an angular distance of 130° from the epicenter of a major earthquake will record which of the following wave profiles?

Question 14 of 20

During an earthquake, what is the geometric nature of the propagation of seismic energy from the focus?

Question 15 of 20

Assertion (A): The Circum-Pacific Belt is heavily characterized by frequent, highly explosive volcanic eruptions. Reason (R): The belt is structurally dominated by subduction zones that produce volatile-rich, highly viscous magma, leading to the formation of stratovolcanoes.

Question 16 of 20

The mathematical formula to determine the velocity of a Primary wave (Vp) incorporates K (bulk modulus), μ (shear modulus), and ρ (density). Which of the following is the correct formula?

Question 17 of 20

The catastrophic 2011 Tohoku earthquake was driven by immense pressure where one tectonic plate was forced under another. This classifies it as an earthquake occurring at a:

Question 18 of 20

Which specific seismic wave creates a complex rolling motion that simultaneously moves the ground both up-and-down and side-to-side?

Question 19 of 20

Which of the following is the defining reason why Secondary waves (S-waves) are fundamentally incapable of passing through liquids or gases?

Question 20 of 20

The collapse of a magma chamber due to the ejection of massive quantities of volcanic material creates which extreme landform?

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