Using the slab panel dimensions and 9 in. thickness, what concrete volume is shown?
Correct Answer
D) 16.9 cy
The slab panel volume is length times width times 9 in. thickness, divided by 27 cubic feet per cubic yard.
Why This Is the Correct Answer
The slab panel volume is length times width times 9 in. thickness, divided by 27 cubic feet per cubic yard.
Why the Other Options Are Wrong
Option A: 22.5 cy
22.5 cy omits the 9 in. thickness and treats square feet as cubic yards.
Option B: 11.3 cy
11.3 cy uses a 6 in. thickness instead of the printed 9 in.
Option C: 1.5 cy
1.5 cy adds length and width before multiplying by thickness.
Memory Technique
Concrete detail habit for thickened slab volume: length x width x thickness before units conversion.
Reference Hint
Open Sheet S-961; read the slab length, width, and thickness note.
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