Planning & EstimatingQuestion 581 of 700
A set of 6 identical spread (pad) footings is shown, each 3 ft by 3 ft in plan and 12 in deep. What is the MINIMUM volume of concrete required for all six?
a.2.0 cubic yards
b.54 cubic yards
c.6.0 cubic yards
d.0.33 cubic yards
Explanation
Each footing is 3 ft x 3 ft x 1 ft = 9 cubic feet. Six footings = 54 cubic feet. Divide by 27 to convert to cubic yards: 54 / 27 = 2.0 cubic yards (a). Option (b) leaves the answer in cubic feet without dividing by 27. Option (c) confuses the footing count with cubic yards. Option (d) is the volume of a single footing (9 / 27 = 0.33) rather than all six.
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