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1
The point vertically above the focus on the surface of the earth is called the ____________________.
Epicenter
Egicenter
Pseudocenter
None of these.
2
The Earthquakes are measured by using which of the following instrument ?
Osmometer
Galvanometer
Seismometer
None of the above
3
Earthquakes with magnitude greater than 7.5 are called ______________________.
Great
Major
Large
Moderate
4
Where landslides can take place ?
Plains
Plateaus
Hilly area
5
The ________is the point on the surface of the earth directly above the focus of the earthquake.
Stress
Fault lines
Epicentre
None of these
6
The machine that measures the strength of an earthquake is called ________________.
Radiograph
Seismograph
Electrocardiograph
7
What is the reason of Tsunami ?
Earthquake
Flood
Drought
8
Which of the following seismic waves travel deep inside the Earth ?
P wave
S wave
Surface wave
Both A and B
9
What are the different hazards occurs due to earthquake ?
Occurrence of landslides
Occurrence of tsunamis
Damage to buildings, roads, dams, bridges, etc.
All of these.
10
Which of the following events can cause earthquake ?
A. Movement of earth's plate
B. Volcanic eruption
C. Underground nuclear explosion
A and B only
B and C only
A and C only
A, B and C
11
Which of the following type of the seismic wave cause the maximum destruction ?
Primary wave
Secondary wave
12
The scale used to measure the Earthquake is _____________ .
Seismographic scale
Richter Scale
Quake scale
13
An earthquake of magnitude 8-9 is:
Strong
Very strong
Mild
Will not be felt
14
Which of the following are correct :
(a) When the magnitude of earthquake is 2.5 or less,it usually not felt, but can be recorded by seismograph.
(b) When the magnitude of earthquake is 2.5 or less,it is great earthquake. Can totally destroy communities near the epicenter.
(c) When the magnitude of earthquake is 8 or more,it is great earthquake. Can totally destroy communities near the epicenter.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
15
(a) Building in earthquake-prone areas should use lightweight materials.
(b) Building in earthquake-prone areas should use heavyweight materials.
(c) During earthquake,if you are indoors, take cover under a heavy table or cot. Keep away from heavy objects that might fall.