CSLB Class B General Contractor's License Practice Exam

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Prepare for the CSLB Class B General Contractor's License Test with interactive flashcards and multiple choice questions. Each question offers hints and explanations to enhance your understanding and readiness for the exam.

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Four and a half (4.5) tons of air conditioning is equivalent to how many BTU/hr?

  1. 12,000 BTU/hr

  2. 36,000 BTU/hr

  3. 54,000 BTU/hr

  4. 72,000 BTU/hr

The correct answer is: 54,000 BTU/hr

To find the equivalent BTU/hr for air conditioning measured in tons, it's important to remember the conversion factor between tons and BTUs. One ton of air conditioning is typically equivalent to 12,000 BTU/hr. Therefore, to calculate the BTU/hr for 4.5 tons of air conditioning, you multiply the number of tons by the BTU/hr equivalent of one ton: 4.5 tons × 12,000 BTU/hr per ton = 54,000 BTU/hr. This shows that the conversion directly aligns with the expected values, making it clear why the correct answer is 54,000 BTU/hr. Understanding this conversion is essential in HVAC and general contracting, as it allows contractors to size equipment appropriately to meet the cooling demands of a space.

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