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Test: Earthquake - SSC CGL MCQ


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10 Questions MCQ Test SSC CGL Tier 2 - Study Material, Online Tests, Previous Year - Test: Earthquake

Test: Earthquake for SSC CGL 2024 is part of SSC CGL Tier 2 - Study Material, Online Tests, Previous Year preparation. The Test: Earthquake questions and answers have been prepared according to the SSC CGL exam syllabus.The Test: Earthquake MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Earthquake below.
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Test: Earthquake - Question 1

What is the primary function of the focus or hypocenter in earthquake terminology?

Detailed Solution for Test: Earthquake - Question 1
The focus or hypocenter in earthquake terminology is the point within the Earth where faulting begins. It is the origin of seismic waves and plays a crucial role in understanding the source of an earthquake.
Test: Earthquake - Question 2

What is the primary cause of an earthquake?

Detailed Solution for Test: Earthquake - Question 2
Earthquakes are primarily caused by plate movement. The Earth's crust consists of tectonic plates, and earthquakes occur along plate boundaries, which can be convergent, divergent, or transform. This movement leads to seismic activity and the release of energy in the form of earthquakes.
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Test: Earthquake - Question 3

What is the primary cause of earthquakes based on dis-equilibrium in any part of the Earth's crust?

Detailed Solution for Test: Earthquake - Question 3
Earthquakes are primarily caused by dis-equilibrium or isostatic imbalance in the Earth's crust, often associated with plate movement. This includes various factors such as volcanic activity, faulting, folding, and other natural and human-induced processes. Plate tectonics provides a logical explanation for the occurrence of earthquakes.
Test: Earthquake - Question 4
What type of earthquake is primarily caused by human-made structures like dams and reservoirs?
Detailed Solution for Test: Earthquake - Question 4
Isostatic earthquakes are primarily caused by human-made structures like dams and reservoirs, leading to changes in the equilibrium of the Earth's crust. These anthropogenic factors can contribute to seismic activity.
Test: Earthquake - Question 5
Which scale measures the magnitude of energy released by an earthquake?
Detailed Solution for Test: Earthquake - Question 5
The Richter magnitude scale measures the magnitude of energy released by an earthquake. Developed by Charles F. Richter, this scale provides a numerical representation of the earthquake's size, with values ranging from 0 to 9.
Test: Earthquake - Question 6
Which region of the world experiences the highest seismicity, with the epicenters along the 'Pacific Ring of Fire'?
Detailed Solution for Test: Earthquake - Question 6
The Circum-Pacific areas, especially along the 'Pacific Ring of Fire,' experience the highest seismicity. Approximately 70% of earthquakes occur in this region, making it one of the most seismically active areas globally.
Test: Earthquake - Question 7
What type of boundary along which earthquakes occur is characterized by plates moving towards each other?
Detailed Solution for Test: Earthquake - Question 7
Convergent boundaries are characterized by plates moving towards each other. Along these boundaries, earthquakes are common, often resulting from the subduction of one tectonic plate beneath another.
Test: Earthquake - Question 8
Which type of seismic wave is named after A.E.H. Love and moves the ground from side-to-side?
Detailed Solution for Test: Earthquake - Question 8
Love Waves (L-waves) are named after A.E.H. Love. They are the fastest surface waves and move the ground from side-to-side, contributing to the shaking felt during an earthquake.
Test: Earthquake - Question 9
Which seismic scale measures the intensity of an earthquake based on its effects?
Detailed Solution for Test: Earthquake - Question 9
The Mercalli intensity scale is used to measure the intensity of an earthquake based on its effects. It ranges from 1 to 12, with higher numbers indicating more severe impacts on structures, landscapes, and people in the affected area.
Test: Earthquake - Question 10
What is the primary characteristic of Primary waves (P-waves) in seismic waves?
Detailed Solution for Test: Earthquake - Question 10
Primary waves (P-waves) are the fastest seismic waves. They can move through gaseous, solid rock, and fluids, such as water or the Earth's liquid layers. P-waves are characterized by their ability to push and pull rock in the direction of their propagation.
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