250+ TOP MCQs on Earthquake Resistant – Recommendations of Indian Standard Code and Answers

Building Construction Multiple Choice Questions & Answers (MCQs) on “Earthquake Resistant – Recommendations of Indian Standard Code”.

1. Earthquake force is a function of __________
a) Mass
b) Thickness
c) Length
d) Breadth
Answer: a
Clarification: Earthquake force is a function of mass. Because of this fact, it is recommended that the building should be as light as possible. Roofs and upper storeys of buildings should also be designed as light as possible.

2. During the construction of earthquake-resistant buildings, ceiling plaster should be avoided. In case it cannot be avoided, it should be as thick as possible.
a) True
b) False
Answer: b
Clarification: During the construction of earthquake-resistant buildings, ceiling plaster should be avoided. In case it cannot be avoided, it should be as thin as possible. The suspended ceiling should also be avoided as far as possible.

3. The design of the projecting parts during the construction of earthquake-resistant buildings should be per ________
a) IS 1833: 2000
b) IS 1873: 2001
c) IS 1893: 2002
d) IS 1993: 2004
Answer: c
Clarification: During the construction of earthquake-resistant buildings, projecting parts should be avoided as far as possible. In case, they cannot be avoided then the design of the projecting parts should be per IS 1893: 2002.

4. During the construction of earthquake-resistant buildings, it should be kept in mind that those solid concrete blocks should be used which have crushing strength not lesser than _________
a) 10 MPa
b) 20 MPa
c) 35 MPa
d) 60 MPa
Answer: c
Clarification: During the construction of earthquake-resistant buildings, it should be kept in mind that those solid concrete blocks should be used which have crushing strength not lesser than 35 MPa. However, depending on the thickness of walls and the number of storeys, masonry units of higher strength may be required.

5. Where the masonry is provided with steel reinforcing bars, the bars should be embedded with adequate cover in cement concrete of grade _________
a) M 5
b) M 10
c) M 35
d) M 15
Answer: d
Clarification: Where the masonry is provided with steel reinforcing bars, the bars should be embedded with adequate cover in cement concrete of grade M 15. This is done to achieve corrosion resistance and a good bond.

6. Masonry bearing walls should not be built of height greater than _________ subject to a maximum of four storeys when measured from the mean ground level to the ride level during the construction of earthquake-resistant buildings.
a) 15 metres
b) 30 metres
c) 60 metres
d) 75 metres
Answer: a
Clarification: Masonry bearing walls should not be built of height greater than 15 metres subject to a maximum of four storeys when measured from the mean ground level to the ride level during the construction of earthquake-resistant buildings. As far as possible, the bearing walls should be symmetrical in the plan in both the directions.

7. The window and door openings increase the lateral load resistance of the walls.
a) True
b) False
Answer: b
Clarification: The window and door openings reduce the lateral load resistance of the walls. Therefore, they should be more centrally located and should preferably be small.

8. The concrete used in coastal areas during the construction of earthquake-resistant buildings should be of grade __________
a) M 10
b) M 15
c) M 20
d) M 35
Answer: c
Clarification: The concrete used in coastal areas during the construction of earthquake-resistant buildings should be of grade M 20. Also, the filling mortar should be of the ratio 1:3.

9. The width of the reinforced concrete band is taken the same as the __________ of the wall.
a) Thickness
b) Height
c) Mass
d) Length
Answer: a
Clarification: The width of the reinforced concrete band is taken the same as the thickness of the wall. The thickness of the wall should be 200 mm minimum.

10. The vertical thickness of the reinforced concrete band should be _______ minimum where four longitudinal bars are specified.
a) 75 mm
b) 100 mm
c) 150 mm
d) 180 mm
Answer: c
Clarification: The vertical thickness of the reinforced concrete band should be 150 mm minimum where four bars are specified. However, it should be 75 mm where bars are specified, one on each face.

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