What does HVAC testing, adjusting, and balancing verify?
Correct Answer
A) That system air or water flows are measured and adjusted toward design requirements
TAB measures and adjusts air or water flow; it is not a substitute for bonds, masonry layout, or pressure testing.
Why This Is the Correct Answer
TAB measures and adjusts air or water flow; it is not a substitute for bonds, masonry layout, or pressure testing.
Why the Other Options Are Wrong
Option B: Verify that bid bonds are approved
Choice B gives That bid bonds are approved. Its specific error: it shifts the question into contract administration money flow.
Option C: Verify that masonry courses are level
Choice C (That masonry courses are level) is rejected because it solves the wrong trade problem; the field result tied to TAB system verification is That system air or water flows are measured and adjusted toward design requirements.
Option D: Verify that pressure tests are no longer needed
In mechanical and plumbing, That pressure tests are no longer needed is the wrong selection for TAB system verification: the choice would not get the project to That system air or water flows are measured and adjusted toward design requirements, which is the TAB system verification result verified by the source.
Memory Technique
Make TAB system verification a purpose cue; if the choice changes the purpose, it cannot be That system air or water flows are measured and adjusted toward design requirements.
Reference Hint
Open Mechanical and Electrical Systems for Construction Managers, 4th Ed., 2024; use by topic index - HVAC capacity / airflow / air changes / TAB to confirm that TAB measures and adjusts air or water flow; it is not a substitute for bonds, masonry layout, or pressure testing.
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