Red Seal Plumbing Practice Exam 2026 - Free Red Seal Plumbing Practice Questions and Study Guide

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What is the max operating temperature and pressure of a low temp hot water boiler?

100C (212F), 900 kPa (130 psig)

110C (230F), 1000 kPa (145 psig)

120C (250F), 1100 kPa (160 psig)

A This option lists the maximum temperature of 100°C (212°F), which is not the correct answer.

B: This option lists a higher maximum temperature of 110°C (230°F) but the same maximum pressure of 1000 kPa (145 psig), but the correct answer specifies a higher maximum pressure as well.

D: This option lists a higher maximum temperature of 130°C (266°F) but the same maximum pressure of 1200 kPa (174 psig), which is not the correct answer.

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130C (266F), 1200 kPa (174 psig)

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