For the field-takeoff reconciliation at the restaurant grease-interceptor area, the overhead pipe rack is 198 ft long and hangers are placed at 8 ft on center, including one at the starting end. How many hangers are needed?
Correct Answer
D) 25 hangers
Count the spaces along the run, then include the starting item.
Why This Is the Correct Answer
Count the spaces along the run, then include the starting item.
Why the Other Options Are Wrong
Option A: 26 hangers
26 hangers is above the supported result for hanger layout; it likely adds an unsupported amount or compares the wrong financial base.
Option B: 27 hangers
27 hangers is above the supported result for hanger layout; it likely adds an unsupported amount or compares the wrong financial base.
Option C: 28 hangers
28 hangers is above the supported result for hanger layout; it likely adds an unsupported amount or compares the wrong financial base.
Memory Technique
Hanger Layout drawer for Foreman Checks: label count before counting dollars.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Mechanical support methods; hanger spacing; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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