Humber/Ontario Real Estate Course 2 Exam Practice

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Prepare for the Ontario Real Estate Exam with our comprehensive Humber Course 2 Exam Practice quiz. Engage with multiple choice questions and detailed explanations, designed to help you excel.

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Which of the following regarding heating systems is true?

  1. Oil furnaces are efficient up to mid-70%

  2. Gas furnaces don’t need heat exchangers

  3. Boiler systems may be closed or open

  4. Boiler systems always boil water

The correct answer is: Boiler systems may be closed or open

Regarding the question on heating systems, the correct answer is C. Boiler systems may be closed or open. This statement is true as boiler systems can indeed be classified as either closed or open systems. In closed boiler systems, the heated water circulates in a closed loop, while in open boiler systems, the water is heated and then released into the radiators. Options A, B, and D are incorrect. Option A is inaccurate because oil furnaces are typically around 80-90% efficient, not up to mid-70%. Option B is false because gas furnaces do require heat exchangers to transfer the heat produced to the air or water being circulated. Option D is not correct as boiler systems do not always boil water; they generate hot water or steam for heating purposes.