In an earthquake, reinforced concrete ____
a. can crumble and fail if it is not sheathed in steel?
b. ?prevents lateral motion of building foundations
c. ?is affected by lateral, but not vertical motion
d. ?is affected by vertical, but not lateral motion
e. ?is responsible for most collapses involving a single floor in a building
ANSWER: a
You might also like to view...
Using Map T-1, the “Hawaii, Hawaii,” topographic map (scale 1:250,000; contour interval 200 feet), calculate the gradient of Mauna Loa (19°28'17"N, 155°35'41"W) along line AB, from the 5000', contour (near Point A) toward the summit. On the edge of a piece of paper measure out a distance of 10 miles using the graphic map scale, and then determine the elevation change over that distance.
In this problem, you will compute the gradients of Mauna Loa in Hawai‘i, Mount Vsevidof in Alaska, and SP Mountain in Arizona. (You may also determine the elevation changes and distances needed to calculate these gradients by using Google Earth™.) The recommended starting point and distance to measure are given for all three volcanoes.
Two out of every three people on Earth live within the top four world population clusters
Indicate whether the statement is true or false.
Which of the following conditions refers to a maritime polar air mass that reaches the Pacific Coast?
A. warm air B. absolutely unstable air C. moist air D. absolutely stable air
Determine where the following geologic material would be carried in a stream: as part of the bed load, suspended load, or dissolved load.Gravel
A. Bed load B. Suspended load C. Dissolved load