This set of Earthquake Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Seismic Hazard Map”.
1. The economic losses that can be recouped during an earthquake are called as ____________
a) Primary losses
b) Secondary losses
c) Tertiary losses
d) Intermediate losses
View Answer
Explanation: Primary losses are the ones which cannot be recovered. This includes the human losses and the losses of natural resources. The secondary losses include the infrastructural losses which are recoverable.
2. The minimum standard of structural design is to ________________
a) Prevent structural collapse
b) Not to allow any damage to the structural members
c) Allow damage to the structural members to repairable limits
d) Not to allow any damage to the structural and non-structural members
View Answer
Explanation: The minimum standard of any design code is to prevent collapse because if a structure collapses there will be a greater probability of primary, irrecoverable losses taking place. Damages to the structural members is allowed because designing for a no damage condition will be un-economic since earthquake less frequent phenomena.
3. The seismic hazard map of 1935 was prepared by which of these institutes?
a) Geological survey of India
b) Institute of engineers
c) Bureau of Indian Standards
d) Tata Institute of Fundamental Research
View Answer
Explanation: Seismic hazard map of India was prepared by geological survey of India in the year 1935. It covered only three zones in the northern region of the Indian plateau.
4. The first seismic hazard map of India was proposed in the year _________
a) 1947
b) 1962
c) 1935
d) 2002
View Answer
Explanation: The first seismic hazard map of India was proposed in the year 1935. It depicted three scenarios severe, moderate and slight earthquake. It also showed areas which experienced damaging earthquakes of intensity 8 and above as per the Modified Mercalli scale.
5. A four zone seismic map of India was prepared by _________________
a) Jai Krishna 1958
b) Auden 1939
c) West 1937
d) Mithal 1959
View Answer
Explanation: A four zone seismic map was prepared by Jai Krishna in the year 1958. He classified these four zones as very heavy damage zones, heavy damage zones, moderate damage zone and light damage zone.
6. Jai Krishna classified the Indian plateau into four zones on the basis of which of these seismic parameters?
a) Peak ground acceleration
b) Location from the past earthquake epicentre
c) Probability of earthquake occurrence in the future
d) Location of faults
View Answer
Explanation: Jai Krishna classified the Indian plateau into four zones based on the peak ground acceleration from the past earthquake data. A zone having peak ground acceleration above 0.3g was considered a very heavy damage zone whereas the one with a peak ground acceleration of 0.1g was considered as a light damage zone. Jai Krishna did not classify the peninsular region of India as it was considered aseismic and relatively stable.
7. Mittal and Srivastava classify the occurrence of earthquakes on the basis of which of these seismic parameters?
a) Statistical earthquake data
b) Pick ground acceleration
c) Distance from the previous earthquake epicentre
d) Thickness of the continental shelf
View Answer
Explanation: Mittal and Srivastava classified the Indian plate in form of belt of frequent, occasional and rare earthquakes. This classification was done on the basis of the continental shelf thickness of more than 1500 m, less than 1500 m and shield blocks of marginal overburden, respectively.
8. Seismic zone map of 1962 was prepared by which of the following Indian Institutes?
a) Geological survey of India
b) Institute of engineers
c) Bureau of Indian Standards
d) Indian concrete institute
View Answer
Explanation: The bureau of Indian Standards prepared the seismic hazard map of India in the year 1962. It considered the Iso-seismal map of 23 major earthquakes that produced intensities ranging from 1 to 12 as per the moment magnification scale. The envelope enclosed by the Iso-seismal lines were considered as a zone.
9. Which of the following cities in India has been assigned a zone factor of 5 based on the deterministic zoning theory?
a) Surat
b) Shillong
c) Shimla
d) Bhuj
View Answer
Explanation: Tectonic studies of the Kutch region did not indicate occurrence of a heavy damage earthquake in the Bhuj region. However, in the year 2002, the Bhuj earthquake created a need to classify few cities based on deterministic approach and not only by studying the geophysics of the region.
10. Which of these earthquakes indicated a need of demarcating earthquake zones even in the Indian peninsular region?
a) Latur Earthquake 1993
b) Kangra Earthquake 1905
c) Koyna Earthquake 1967
d) Bhuj Earthquake 2002
View Answer
Explanation: An earthquake of magnitude 6.2 on the Richter scale stroked in the early hours of 30th September 1993 in Killari, Latur which of earlier considered as a low damage zone. This resulted in the BIS to review the seismic studies of the peninsular region and incorporate a method of probabilistic analysis along with the primitive method of demarcation on the basis of Iso-seismal data alone.
Sanfoundry Global Education & Learning Series – Earthquake Engineering.
To practice all areas of Earthquake Engineering, here is complete set of Multiple Choice Questions and Answers.
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