On a fast-track school project, bank excavation is 2835 cy and soil swells 20 percent for hauling. What loose volume is hauled?
Correct Answer
B) 3,402 cy
The calculation gives 3,402 cy for the stated swell volume. Other choices: the distractors come from omitting an adjustment, using the wrong rate, or applying a rounded shortcut for calculation item 184.
Why This Is the Correct Answer
The calculation gives 3,402 cy for the stated swell volume.
Why the Other Options Are Wrong
Option A: Apply 3402 cy to the swell volume condition
swell volume, choice a: 3402 cy repeats the numeric result but changes the required label or rounding; 2,835 x 1.2 = 3,402. so the keyed form is 3,402 cy.
Option C: Select 3,061 for swell volume
swell volume, choice b: 3,061 implies about 7.97 percent swell on 2835; the accepted swell calculation is 2,835 x 1.2 = 3,402.
Option D: Make 3,742 the answer for swell volume
swell volume, choice c: 3,742 is wrong because 3,742 implies about 31.99 percent swell on 2835; the accepted swell calculation is 2,835 x 1.2 = 3,402.
Memory Technique
Store swell volume with its last math move; nearby answers are usually unfinished versions of 3,402 cy.
Reference Hint
Open Pipe and Excavation Contracting, 2011; use the index entry or section for "swell volume calculation" to confirm that The calculation gives 3,402 cy for the stated swell volume.
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