Question 1
According to ÖNORM B 5019, what is the mandatory minimum hot water temperature at the outlet of a central potable water storage heater (Speicheraustritt) during standard operation?
Correct Answer:
60 °C
Question 2
Under ÖNORM B 5019, what is the minimum permissible water temperature in the circulation return pipe (Zirkulationsrücklauf) when re-entering the water heater?
Correct Answer:
55 °C
Question 3
According to ÖNORM B 5019 and the Austrian Drinking Water Ordinance (Trinkwasserverordnung), what is the maximum permissible cold drinking water (PWC) temperature at any draw-off fixture after 30 seconds of flow?
Correct Answer:
25 °C
Question 4
What does the '3-Liter-Regel' (3-liter rule) in ÖNORM B 5019 dictate regarding domestic hot water installations?
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.
Question 5
When carrying out thermal disinfection (Thermische Desinfektion) of a contaminated hot water system under ÖNORM B 5019, what minimum temperature must be reached at each tapping point, and for how long must it flow?
Correct Answer:
70 °C for at least 3 minutes
Question 1
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Prepare with the Befähigungsprüfung Gas- und Sanitärtechnik Practice Questions - Befähigungsprüfung für das reglementierte Gewerbe Gas- und Sanitärtechnik (Österreich) Exam practice quiz. This question bank includes 100 questions covering norm, water, standard, pressure, and drinking. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Befähigungsprüfung Gas- und Sanitärtechnik Practice Questions - Befähigungsprüfung für das reglementierte Gewerbe Gas- und Sanitärtechnik (Österreich) Exam

This practice set contains 100 questions from the matching question bank and focuses on norm, water, standard, pressure, and drinking. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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