1. Seismic waves that vibrate perpendicular to the direction of their path
(a) Travel through the solid parts of the earth only
(b) Travel through the solid as well as other parts of the earth
(c) Spread on the surface of the earth
(d) None of the above
2. Which one of the following earthquake waves is more destructive? [NCERT Geography]
(a) P-waves
(b) S-waves
(c) Surface waves
(d) None of the above
The location below the earth’s surface where the earthquake starts is called
(a) Dip
(b) Epicenter
(c) Hypocenter
(d) Strike
3. Body waves consist of which of the following ?
(a) P waves only
(b) S waves only
(c) P and S waves
(d) Surface waves
4. The range of intensity scale is from
(a) 0-10
(b) 0-9
(c) 1-10
(d) 1-12
5. The following scale takes into account the visible damage caused by the earthquake ?
(a) Mercalli Scale
(b) Richter scale
(c) Magnitude scale
(d) None of the above
6. Which one of the following statements about primary waves of earthquakes is not correct?
(a) They are similar to sound waves.
(b) They can travel only through solid materials.
(c) They travel through gaseous, liquid and solid materials.
(d) They move faster and are the first to arrive at the surface.
7. What is the shadow zone for S waves ?
(a) Less than 105° from epicentre
(b) Only greater than 145° from epicentre
(c) Only between 105° and 145° from epicentre
(d) Entire zone beyond 105° from epicentre
8. The instrument used to measure the earthquake is known as
(a) Quake meter
(b) Barometer
(c) Seismograph
(d) Ritcher scale
9. Which of the following statements relating to earthquakes is/are correct? [UPSC CDS 2014]
1. The point of origin of an earthquake is called the epicenter.
2. The lines joining the places which were affected by earthquake at the same point of time are called homoseismal lines.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
10. With reference to earthquakes, which of the following statements are correct? [CDS 2016]
1. Earthquakes largely occur along the converging plate boundaries.
2. Point of origin of earthquake in lithosphere is known as focus/ hypocentre.
3. Intensity of earthquake decreases with distance from the epicentre.
4. Epicentre of earthquake always remains over continents only.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 1, 2 and 3
(c) 2 and 3 only
(d) 1 and 4