Question

In an area prone to earthquakes, a civil engineer should consider bracing the windows or the entire frame of the building.

Question 1 options:

	True
	False

Question 2 (1 point)

In an area prone to earthquakes, a civil engineer should design the modern one- and two-story wood-frame houses to be able to move up and down, and sideways without failing. The ability to withstand earth movements is given by building shear walls and by using bracing and other elements that tie the walls, foundation, and roof together.

Question 2 options:

	True
	False

Question 3 (1 point)

In an area prone to earthquakes, a civil engineer should design a house to resist seismic waves, bearing in mind the following rules: Bolt it. Bracket it. Brace it. Block it. Panel it.

Question 3 options:

	True
	False

Question 4 (2 points)

After an earthquake, the ground of a field cracked 10 inches. There are 2.54 centimeters in 10 inches.

Question 4 options:

	True
	False

Question 5 (2.14 points)

After an earthquake, some items in a supermarket fell from the shelves. One of those items weighed 52 kg. There are 114.64 pounds in 52 kg.

Question 5 options:

	True
	False

Answer 1

Question 1:

In an earthquake prone area, bracing the entire frame of the building is done by the civil engineer because the braced frame provides ductility of the material of building so that the building of the material could stretch without been broken due to sudden release of energy during an earthquake. Generally now-a-days eccentrically braced frames are used for the purpose. Similarly in the case of a window the glass breaks due to distortion in the frame which is mainly due to sudden release of energy. so the the above said statement is true that the civil engineer should consider bracing the window or the entire frame of the building, in an earthquake prone area.

Question 2:

True.

The shear walls are vertical walls that help to provide stability to the entire height of the building from lateral and seismic activities. These walls have no windows or doors and seamlessly support the floor, ceiling and the walls of the house to minimise movement arising from seismic activity.

Question 3 ;

True. This is part of the process to seismically retrofit houses in the Earthquake zones to minimise damage to houses and provide a strong foundation for the house that will not slide or get raised.

Question 4 :

False

Note : 1 inch =2.54 cm

Then 10 inches = 10 * 2.54 = 25.4 cm

So there are 25.4 centimeters in 10 inches.

Hence the statement there are 2.54 centimeters in 10 inches is false.

Question 5 :

True.

For conversion, one kilogram is approximately 2.2046 pounds. Thus 52 kg equals 114.64 pounds.