The rooftop-unit equipment schedule lists 90,000 Btu per hour of cooling capacity. What tonnage does that equal?
Correct Answer
A) 7.5 tons.
One ton of cooling equals 12,000 Btu per hour, so 90,000 divided by 12,000 equals 7.5 tons.
Why This Is the Correct Answer
One ton of cooling equals 12,000 Btu per hour, so 90,000 divided by 12,000 equals 7.5 tons.
Why the Other Options Are Wrong
Option B: 6.5 tons total.
6.5 tons total. is below the supported result for hvac capacity conversion; it likely skips a premium-pay or employer-cost component.
Option C: 7 tons total.
7 tons total. is below the supported result for hvac capacity conversion; it likely skips a premium-pay or employer-cost component.
Option D: 8 tons total.
8 tons total. is above the supported result for hvac capacity conversion; it likely pays the wrong premium tier or counts the same hours twice.
Memory Technique
Hvac Capacity Conversion ladder for Checking Equipment: hours climb before dollars add up.
Reference Hint
Study anchor (closed-book): memorize HVAC capacity conversion from California Mechanical Code, California Code of Regulations Title 24. / Title 24 California Mechanical Code cooling capacity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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