Let's analyze the provided table to determine the advantage of using 16-inch spacing compared to 24-inch spacing.
The table provides spans supported by 16-inch and 24-inch spacings at a given load. To determine the advantage, we need to compare the maximum spans each spacing can support under different loads.
First, let's extract and examine the spans for each Load (50, 60, 70):
Load 50:
- 16-inch spacing: [50, 16, 24, 8, 7, 16, 24]
- 24-inch spacing: [11, 6, 7, 3, 14, 7, 12, 1, 14, 7, 17, 6, 20, 5, 17, 0]
Load 60:
- 16-inch spacing: [16, 24, 8, 1, 6, 8, 10, 10, 8, 11, 13, 8, 11, 3, 16, 6, 13, 7, 19, 3, 15, 11]
- 24-inch spacing: []
Load 70:
- 16-inch spacing: [16, 24, 7, 8, 6, 5, 10, 2, 8, 5, 12, 10, 10, 7, 15, 6, 12, 9, 18, 3, 15, 0]
- 24-inch spacing: []
Next, we find the maximum span each spacing supports under these loads.
For 16-inch spacing:
- Load 50: Maximum span = 50
- Load 60: Maximum span = 19
- Load 70: Maximum span = 18
For 24-inch spacing:
- Load 50: Maximum span = 20
- Load 60: No spans recorded
- Load 70: No spans recorded
By comparing the maximum spans:
- At Load 50, the 16-inch spacing supports a maximum span of 50, while the 24-inch spacing supports a maximum span of 20.
- For other loads, only the 16-inch spacing has recorded spans.
Therefore, at a given load, the 16-inch spacing can support larger spans compared to the 24-inch spacing.
Thus, the correct answer is:
B. At a given load, the 16 -inch spacing can support a larger span
