C&G 6189 L3 Practice Questions - City & Guilds 6189 Level 3 NVQ Diploma In Domestic Plumbing & Heating Exam

At approximately what temperature is the temperature relief valve on a G3 unvented hot water cylinder set to operate?

60 degrees C 70 degrees C 90 degrees C 120 degrees C

Correct Answer:

90 degrees C

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