100+ Free Meisterprüfung Heizungstechnik Practice Questions

Prepare for the Meisterprüfung Heizungstechnik (Austrian Master Craftsman Examination in Heating & Ventilation Engineering) exam with instant access — no signup required.

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2026 Statistics

Key Facts: Meisterprüfung Heizungstechnik Exam

NQR 6

National Qualification Level

Austrian NQR / GewO 1994

5 Modules

Examination Structure

WKO Meisterprüfungsordnung

€0 Free

1st & 2nd Attempt Fee

Austrian Federal Funding (Jan 2024)

Grade 1–4

Passing Requirement

WKO Prüfungsordnung

24%

Heat Gen & Renewables

Syllabus Breakdown

22%

Hydronics & Safety

Syllabus Breakdown

The Austrian Meisterprüfung Heizungstechnik confers full statutory competence (NQR Level 6) to plan, design, calculate, commission, and manage commercial and residential heating, ventilation, and renewable HVAC installations. Administered by the WKO Meisterprüfungsstellen across 5 modular sections, the exam is evaluated on the Austrian 1–5 grading scale (grade 4 'Genügend' or better required to pass every subject). Since January 1, 2024, examination fees for first and second attempts are completely free (€0) due to Austrian federal funding. This 100-question practice bank provides an English-language study adaptation with Austrian standard fidelity.

Sample Meisterprüfung Heizungstechnik Practice Questions

Try these sample questions to test your Meisterprüfung Heizungstechnik exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to ÖNORM EN 12831-1 and the Austrian national application standard ÖNORM H 7500, which formula correctly represents the design heat load (Norm-Heizlast Phi_HL) for a standard heated room?

A.Phi_HL = Phi_T - Phi_V + Phi_sol

B.Phi_HL = Phi_T + Phi_V + Phi_RH

C.Phi_HL = (Phi_T + Phi_V) * f_GEE

D.Phi_HL = Phi_T * eta_WRG + Phi_RH

Explanation: According to ÖNORM EN 12831-1 and ÖNORM H 7500, the total design room heat load (Norm-Heizlast Phi_HL) consists of the design transmission heat loss (Norm-Transmissionswärmeverlust Phi_T), design ventilation heat loss (Norm-Lüftungswärmeverlust Phi_V), and, where applicable, the additional reheating power (Wiederaufheizleistung Phi_RH).

2What is the standard indoor design temperature (Norm-Innentemperatur T_i) specified for standard bathrooms (Bäder) in residential buildings according to ÖNORM EN 12831 / ÖNORM H 7500?

A.20°C

B.24°C

C.22°C

D.26°C

Explanation: Under ÖNORM EN 12831 and ÖNORM H 7500, the standard indoor design temperature (Norm-Innentemperatur T_i) for residential bathrooms is specified as 24°C to account for thermal comfort of unclothed occupants.

3Which of the following defines the physical material property thermal conductivity (Wärmeleitfähigkeit lambda) and its correct SI unit?

A.The overall heat transfer rate across a multi-layer composite building element, expressed in W/(m²·K)

B.The total thermal resistance of an unventilated air cavity, expressed in m²·K/W

C.The volumetric heat capacity of a storage medium, expressed in kJ/(kg·K)

D.The rate of heat transfer through a unit thickness of a homogeneous material per unit area and temperature gradient, expressed in W/(m·K)

Explanation: Thermal conductivity (lambda) is a fundamental material property describing the heat flow in Watts through 1 meter thickness of a material over 1 square meter of surface with a 1 Kelvin temperature difference. Its unit is W/(m·K).

4Under ÖNORM EN 12831-1, what standard indoor design temperature (T_i) must be applied when calculating the design heating load for standard living rooms and offices (Wohn- und Büroräume)?

A.20°C

B.18°C

C.22°C

D.24°C

Explanation: The standard indoor design temperature (T_i) for living areas, dining rooms, kitchens, bedrooms, and office spaces is 20°C according to ÖNORM EN 12831-1 and ÖNORM H 7500.

5What is the physical meaning and standard unit of the thermal transmittance coefficient (Wärmedurchgangskoeffizient or U-value)?

A.The thermal resistance per unit length of pipe insulation, in m·K/W

B.The total linear heat loss per meter of structural thermal bridge, in W/(m·K)

C.The heat flow rate per unit area through a building component per Kelvin temperature difference between adjacent air layers, in W/(m²·K)

D.The radiation absorption factor of an external facade surface, dimensionless

Explanation: The U-value (Wärmedurchgangskoeffizient) characterizes the rate of heat transfer through a square meter of a building component per Kelvin difference between the indoor and outdoor air temperatures, expressed in W/(m²·K). It is the reciprocal of total thermal resistance (U = 1 / R_T).

6An external wall has an area of 20 m² and a U-value of 0.20 W/(m²·K). If the indoor design temperature is 20°C and the standard outdoor design temperature is -12°C, what is the direct transmission heat loss (Phi_T) through this wall element, ignoring thermal bridges?

A.160 W

B.96 W

C.128 W

D.64 W

Explanation: The direct transmission heat loss is calculated as: Phi_T = A * U * (T_i - T_e) = 20 m² * 0.20 W/(m²·K) * (20°C - (-12°C)) = 4 W/K * 32 K = 128 W.

7In ÖNORM EN 12831-1 and ÖNORM H 7500, what is the purpose of the temperature reduction factor (Temperatur-Korrekturfaktor f_u / f_x) when calculating transmission heat losses to adjacent unheated spaces?

A.It reduces the full outdoor temperature difference to account for the buffer effect and higher equilibrium temperature in unheated spaces

B.It compensates for solar radiation gains through unheated skylights

C.It accounts for the pressure difference caused by stack ventilation in unheated attics

D.It increases the heating load to account for safety margins in uninsulated basements

Explanation: The temperature reduction factor (f_u or f_x) adjusts the temperature difference (T_i - T_e) for building components bordering unheated rooms (such as attics, garages, or basements) because those unheated buffer spaces maintain a temperature higher than the outdoor design temperature.

8When performing simplified heating load calculations per ÖNORM H 7500, what standard thermal bridge surcharge (Wärmebrückenzuschlag Delta U_WB) is applied to external building envelopes with modern continuous external thermal insulation composite systems (WDVS)?

A.0.15 W/(m²·K)

B.0.00 W/(m²·K)

C.0.05 W/(m²·K)

D.0.25 W/(m²·K)

Explanation: Under ÖNORM H 7500 and ÖNORM EN 12831, when thermal bridges are not calculated individually via detailed Psi-values, a flat surcharge of Delta U_WB = 0.05 W/(m²·K) is standard for constructions with continuous external insulation (WDVS / Vollwärmeschutz).

9What is the normative minimum air exchange rate (Mindest-Luftwechselrate n_min) specified for residential rooms (Wohnräume) during standard heating load sizing per ÖNORM EN 12831-1 and ÖNORM H 7500?

A.0.5 h⁻¹

B.1.5 h⁻¹

C.0.1 h⁻¹

D.2.0 h⁻¹

Explanation: ÖNORM EN 12831-1 and ÖNORM H 7500 specify a baseline minimum air change rate of n_min = 0.5 h⁻¹ for residential living spaces to ensure adequate hygienic air quality during heating load dimensioning.

10A residential room requires an outdoor airflow rate of V_dot = 100 m³/h. The volumetric heat capacity of air is rho * c_p = 0.34 Wh/(m³·K). For an indoor temperature of 20°C and design outdoor temperature of -10°C, what is the design ventilation heat loss (Phi_V)?

A.680 W

B.1360 W

C.340 W

D.1020 W

Explanation: The ventilation heat loss is calculated using the formula: Phi_V = V_dot * rho * c_p * (T_i - T_e) = 100 m³/h * 0.34 Wh/(m³·K) * (20°C - (-10°C)) = 34 W/K * 30 K = 1020 W.

About the Meisterprüfung Heizungstechnik Exam

The Meisterprüfung Heizungstechnik (governed by the Austrian Trade Code GewO 1994 § 94 Z 31 and the Heizungstechnik-Meisterprüfungsordnung) is the premier professional qualification (NQR / EQF Level 6) required for self-employed practice, technical management, and engineering authorization in the heating, ventilation, and renewable energy installation craft in Austria. The examination is conducted by the WKO Meisterprüfungsstellen across five comprehensive modules: Module 1 (Practical Project & Workshop Execution), Module 2 (Oral Technical Examination), Module 3 (Written Engineering Sizing, Thermodynamics & Design), Module 4 (Trainer Examination / Ausbilderprüfung), and Module 5 (Business & Legal Examination / Unternehmerprüfung). Important: This OpenExamPrep question bank is an English-language multiple-choice study and practice adaptation covering the complete theoretical, technical, and statutory syllabus (ÖNORM EN 12831 heating load, hydronic balancing, ÖNORM EN 12828 safety equipment, heat pumps, biomass, condensing technology, ventilation per ÖNORM EN 16798, OIB-Richtlinie 6, ÖNORM H 5195-1 water quality, and cost accounting), while preserving Austrian statutory citations, standards, and technical terms in German.

Assessment

Question count varies by module

Time Limit

Multiple days across 5 modules (Module 3 written: 4–8 hours)

Passing Score

Austrian school grading scale 1–5 (Grade 1 Sehr gut to 4 Genügend on all examined subjects)

Exam Fee

€0 (Free for 1st & 2nd attempt since 1 Jan 2024 via federal funding) (Wirtschaftskammern Österreichs (WKO) Meisterprüfungsstellen & Bundesinnung der Sanitär-, Heizungs- und Lüftungstechniker)

Meisterprüfung Heizungstechnik Exam Content Outline

18%

Heating Load Calculation & Thermodynamics (Heizlastberechnung & Thermodynamik)

Design heating load calculation according to ÖNORM EN 12831-1 and national application standard ÖNORM H 7500; transmission heat losses (Phi_T) including thermal bridge supplements (Delta U_WB) and temperature correction factors (f_x); ventilation heat losses (Phi_V) and minimum air exchange rates; reheating power (Phi_RH); Austrian standard outdoor design temperatures (T_e) and indoor design temperatures (T_i); fundamental thermodynamics, heat transfer coefficients (lambda, alpha, U-value), and log mean temperature difference (LMTD).

22%

Hydronics, Circulation Pumps & Safety Equipment (Hydraulik, Pumpen & Sicherheitstechnik)

Hydronic balancing (hydraulischer Abgleich) of two-pipe and radiant systems; valve authority (Ventilautoritaet a >= 0.5) and k_v / k_vs value sizing; static vs. dynamic differential pressure control valves and PICVs; circulation pump characteristics, system curves, control modes (Delta p-v, Delta p-c), and Energy Efficiency Index (EEI <= 0.20 per ErP); safety equipment for closed water heating systems per ÖNORM EN 12828; diaphragm expansion vessels (MAG) sizing (p_0, p_e, V_N, V_e, V_V); safety relief valve (Sicherheitsventil) dimensioning; STB, TR, and low-water cut-off devices.

24%

Heat Generation & Renewable Energy Systems (Wärmeerzeugung & Erneuerbare Energien)

Heat pump systems (ÖNORM EN 14511, EN 14825, VDI 4650): COP, SCOP, JAZ, heat sources (air, brine boreholes per ÖWAV 207, groundwater), operating modes (monovalent, monoenergetic, bivalent), buffer storage hydraulics, and F-Gas regulations (R290, R32); biomass combustion (ÖNORM EN 303-5, ÖNORM EN ISO 17225): pellet, wood chip, and log wood boilers, buffer cylinder sizing (Pufferspeicher >= 50 L/kW), return temperature elevation (Rücklaufanhebung >= 55–60°C), thermal discharge safety valves (TAS); condensing boiler technology (Brennwert Hs vs. Heizwert Hi, dew point of natural gas ~56°C and heating oil ~47°C, plastic flue gas systems ÖNORM B 8201, condensate drainage ÖWAV 28); solar thermal systems (collectors, stagnation, glycol fluids); district heating substations (Fernwärme-Übergabestationen) and return temperature limitation.

18%

Ventilation & Air Conditioning Technology (Lüftungstechnik & Klimatechnik)

Ventilation standards (ÖNORM EN 16798-1/-3, ÖNORM H 6038 residential ventilation KWL); indoor air quality (IDA 1–4) and air distribution zoning (supply, extract, overflow); heat recovery systems (WRG per ÖNORM EN 308: counter-flow plate, rotary wheel, run-around coil KVS); air filtration classes per ISO 16890 (ISO Coarse, ePM10, ePM2.5, ePM1) and pressure drops; ductwork sizing, continuity equation, dynamic and static pressure, acoustic velocity limits, fire dampers (Brandschutzklappen EI 90 / EI 30 per ÖNORM EN 15650); Mollier h,x psychrometric chart: sensible heating/cooling, dehumidification, steam vs. adiabatic humidification, dew point.

18%

Building Physics, Water Quality & Business Practice (Bauphysik, Wasserqualität & Kalkulation)

OIB-Richtlinie 6 (Energy saving and thermal insulation): heating demand (HWB), primary energy (PEB), greenhouse gas emissions (CO2), total energy efficiency factor (f_GEE), component U-value limits, Energy Performance Certificate (Energieausweis), and mold prevention (f_Rsi >= 0.71 per ÖNORM B 8110-2); heating water quality per ÖNORM H 5195-1 (total hardness, pH range 8.2–10.0 or 8.2–8.5 for aluminum, low-salt vs. saline operation, electrical conductivity, chloride limits < 30 mg/L); domestic hot water hygiene per ÖNORM B 5019 (Legionella prevention, storage >= 60°C, circulation return >= 55°C, 3-liter rule); contracting and cost calculation: surcharge calculation (Zuschlagskalkulation), Mittellohnpreis, LB-HT tendering per ÖNORM A 2063, warranty (Gewährleistung per ABGB / ÖNORM B 2110).

How to Pass the Meisterprüfung Heizungstechnik Exam

What You Need to Know

Passing score: Austrian school grading scale 1–5 (Grade 1 Sehr gut to 4 Genügend on all examined subjects)
Assessment: Question count varies by module
Time limit: Multiple days across 5 modules (Module 3 written: 4–8 hours)
Exam fee: €0 (Free for 1st & 2nd attempt since 1 Jan 2024 via federal funding)

Keys to Passing

Work through all 100 available questions
Review every answer and explanation
Track weak areas and revisit them
Use our AI tutor for tough concepts

Meisterprüfung Heizungstechnik Study Tips from Top Performers

1Master the heating load calculation methodology under ÖNORM EN 12831-1 and ÖNORM H 7500, specifically transmission heat loss factors (f_x), thermal bridges, and climatic design temperatures across Austrian federal states.

2Thoroughly practice sizing calculations for diaphragm expansion vessels (MAG) and safety relief valves according to ÖNORM EN 12828, ensuring you know how to calculate pre-charge pressure (p_0), final pressure (p_e), and expansion volume (V_e).

3Understand hydronic balancing and valve authority (Ventilautorität a >= 0.5), including how to select k_vs values, differential pressure regulators, and pump control curves (Delta p-v vs. Delta p-c).

4Memorize the precise water chemistry parameters under ÖNORM H 5195-1: pH limits (8.2–10.0 for steel/copper vs. 8.2–8.5 for aluminum), conductivity (< 100 µS/cm for low-salt operation), and chloride (< 30 mg/L).

5Review domestic hot water hygiene rules under ÖNORM B 5019 (60°C storage, 55°C circulation return, 3-liter rule) and building physics under OIB-Richtlinie 6 (HWB, f_GEE, U-values, f_Rsi mold factor).

Frequently Asked Questions

What is the Austrian Meisterprüfung Heizungstechnik?

The Meisterprüfung Heizungstechnik is the state-recognized master craftsman examination in Austria (governed by GewO 1994 § 94 Z 31 and the Heizungstechnik-Meisterprüfungsordnung). It is mapped to Level 6 of the National Qualifications Framework (NQR / EQF Level 6, equivalent to a Bachelor's degree) and is required for commercial licensing to independently plan, install, and service heating, ventilation, and renewable thermal systems.

How is the official WKO Meisterprüfung examination structured?

The examination is divided into 5 independent modules: Module 1 (Practical project design, workshop installation, and commissioning), Module 2 (Oral technical examination before a master examination board), Module 3 (Written technical examination including heating load calculation, hydraulic network sizing, and system design), Module 4 (Ausbilderprüfung / trainer qualification), and Module 5 (Unternehmerprüfung / business and legal examination).

How much does the Meisterprüfung cost in Austria?

Since January 1, 2024, examination fees for the first and second attempt of all master craftsman (Meisterprüfungen) and competence examinations (Befähigungsprüfungen) in Austria are 100% free (€0), fully funded by the Austrian federal government through the WKO Meisterprüfungsstellen.

How is the examination graded and what is the passing standard?

Grading follows the traditional Austrian school scale from 1 to 5: 1 (Sehr gut / Excellent), 2 (Gut / Good), 3 (Befriedigend / Satisfactory), 4 (Genügend / Sufficient/Pass), and 5 (Nicht genügend / Fail). To pass each module, a candidate must achieve at least grade 4 ('Genügend') in every examined subject area.

Is this OpenExamPrep question bank an official Austrian exam paper?

No. This practice question bank is an English-language multiple-choice study adaptation designed to thoroughly test and reinforce all engineering principles, statutory standards (ÖNORMEN, OIB-Richtlinien), calculations, and trade knowledge required for the Austrian Meisterprüfung Heizungstechnik, while preserving all authentic Austrian technical terms, formulas, and legal designations in German.

What key standards (ÖNORMEN) are tested in heating and ventilation engineering in Austria?

Crucial standards include ÖNORM EN 12831-1 & ÖNORM H 7500 (Heating load calculation), ÖNORM EN 12828 (Safety equipment & expansion vessels), ÖNORM H 5195-1 (Heating water quality and corrosion prevention), ÖNORM B 5019 (Legionella prevention in DHW systems), ÖNORM EN 16798 (Ventilation design & IAQ), ÖNORM EN 303-5 (Biomass boilers), ÖNORM EN 14511 (Heat pump performance), OIB-Richtlinie 6 (Energy efficiency & building physics), and ÖNORM A 2063 / B 2110 (Tendering and contract execution).