Befähigungsprüfung Gas- Und Sanitärtechnik Practice Questions - Befähigungsprüfung Für Das Reglementierte Gewerbe Gas- Und Sanitärtechnik (Österreich) Exam

What does the '3-Liter-Regel' (3-liter rule) in ÖNORM B 5019 dictate regarding domestic hot water installations?

Water storage tanks must be drained by at least 3 liters every morning before use. If the pipe volume between the water heater/circulation line and any tapping point exceeds 3 liters, a circulation pipe or trace heating is mandatory. The maximum flow rate at any washbasin tap must not exceed 3 liters per minute. Circulation pumps must have a minimum volumetric displacement of 3 liters per second.

Correct Answer:

If the pipe volume between the water heater/circulation line and any tapping point exceeds 3 liters, a circulation pipe or trace heating is mandatory.

Access more questions from this quiz

Continue to Befähigungsprüfung Gas- und Sanitärtechnik Practice Questions - Befähigungsprüfung für das reglementierte Gewerbe Gas- und Sanitärtechnik (Österreich) Exam for more practice questions and the full quiz experience.

Access More Questions