100+ Free Sanitärmeister/in HFP Practice Questions

Prepare for the Dipl. Sanitärmeister/in (HFP) / Maître sanitaire avec diplôme fédéral exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately

100+ Questions

100% Free

Loading practice questions...

Same family resources

Explore More Swiss Master Craftsman Diplomas (Höhere Fachprüfung Meister)

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

2026 Statistics

Key Facts: Sanitärmeister/in HFP Exam

480 min

Official assessment time

suissetec Prüfungsordnung

Grade 4.0

Minimum pass grade (1.0-6.0 scale)

suissetec Prüfungsordnung

CHF 1,100 / 500

Official examination fee

suissetec fee schedule

SVGW / SIA

Core Swiss technical standards

SVGW / SIA Norms

Three examination parts — a 4-hour written case study, a diploma thesis with oral defence and a 1-hour oral Berufskunde Gas und Wasser — each requiring grade 4.0; 64% passed in March 2026. These practice questions are an English-language MCQ study adaptation of drinking-water hygiene, drainage and gas, project calculation and management, not a simulation of the official examination.

Sample Sanitärmeister/in HFP Practice Questions

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

1According to SVGW guideline W3/E1 (Hygiene in Trinkwasserinstallationen), what is the mandatory minimum hot water temperature at the outlet of a central potable water heater (Speicheraustritt) during continuous standard operation?

A.50 °C

B.55 °C

C.60 °C

D.65 °C

Explanation: SVGW W3/E1 explicitly requires a minimum operating temperature of 60 °C at the outlet of the drinking water heater (Speicheraustritt) to effectively prevent the proliferation of Legionella bacteria. Maintaining this continuous temperature ensures that water entering the distribution network is microbiologically safe.

2Under SVGW W3/E1 and SIA 385/2, what is the minimum permissible temperature in the circulation return pipe (Zirkulationsrücklauf) when it re-enters the hot water storage cylinder?

A.45 °C

B.50 °C

C.55 °C

D.60 °C

Explanation: SVGW W3/E1 and SIA 385/2 state that the maximum temperature drop across the entire circulation network must not exceed 5 K. Starting from a 60 °C flow temperature at the heater outlet, the circulation return pipe must maintain at least 55 °C upon re-entry into the storage system.

3According to SVGW guideline W3/E1, what is the maximum permissible cold drinking water (PWC) temperature at any draw-off fitting after allowing water to flow for 30 seconds?

A.15 °C

B.20 °C

C.25 °C

D.30 °C

Explanation: SVGW W3/E1 specifies that cold drinking water installations must be thermally insulated and routed away from heat sources so that the water temperature does not exceed 25 °C after 30 seconds of standard flow. Temperatures above 25 °C encourage rapid microbial regrowth.

4Under SVGW W3/E1 and SIA 385/2, what is the maximum water volume permitted in an uncirculated and unheated branch pipe (Ausstossleitung) connecting a circulation riser to a tap?

A.1.0 liter

B.3.0 liters

C.5.0 liters

D.10.0 liters

Explanation: The '3-Liter-Regel' in SVGW W3/E1 and SIA 385/2 establishes that any distribution branch without active circulation or self-regulating trace heating must contain no more than 3.0 liters of water. If the volume exceeds 3.0 liters, circulation or trace heating must be extended to that section to prevent stagnation and thermal decay.

5A heating system is filled with water containing toxic chemical corrosion inhibitors (LD50 <= 200 mg/kg, Fluid Category 4 under DIN EN 1717). According to SVGW W3, which backflow protection device is mandatory at the potable water connection?

A.Controllable backflow preventer Type EA (Rückflussverhinderer)

B.System separator Type CA (Systemtrenner nicht kontrollierbare Mitteldruckzone)

C.System separator Type BA (Systemtrenner mit kontrollierbarer Mitteldruckzone)

D.Pipe aerator Type DB (Rohrbelüfter)

Explanation: Fluid Category 4 encompasses fluids presenting a toxic health hazard to humans due to toxic chemical substances (LD50 <= 200 mg/kg). DIN EN 1717 and SVGW W3 mandate a backflow preventer with a controllable reduced pressure zone (Systemtrenner Type BA) or an unrestricted air gap (Type AA/AB) to protect the potable water network.

6Which safety device is required under DIN EN 1717 and SVGW W3 when connecting a potable water installation to a rainwater harvesting tank or a sewage-carrying installation (Fluid Category 5)?

A.System separator Type BA (Systemtrenner)

B.Double check valve Type EC

C.Unrestricted air gap Type AA or Type AB (Freier Auslauf)

D.Pipe disconnector with mechanical vent Type GA

Explanation: Fluid Category 5 covers fluids presenting a serious human health hazard due to the presence of microbiological pathogens, bacteria, or viruses (e.g., sewage, rainwater harvesting). DIN EN 1717 and SVGW W3 strictly mandate an unrestricted air gap (Freier Auslauf Type AA or Type AB) with an atmospheric break.

7A domestic central heating system is operated with plain mains water without any chemical additives or inhibitors (Fluid Category 3). According to SVGW W3 / DIN EN 1717, what is the minimum approved safety device for a permanent filling connection?

A.System separator Type CA (Systemtrenner nicht kontrollierbare Mitteldruckzone)

B.Single check valve Type EB

C.Vacuum breaker Type HA

D.Unrestricted air gap Type AA

Explanation: Heating water without inhibitors or chemical additives is classified as Fluid Category 3 (substances of low toxicity, LD50 > 200 mg/kg). According to DIN EN 1717 and SVGW W3, a Systemtrenner Type CA (non-controllable reduced pressure zone) is the minimum required protective device for a fixed connection.

8In the SVGW W3 pipe sizing method, what flow rate is represented by exactly 1 Loading Unit (1 Belastungswert / 1 LU)?

A.0.05 l/s (3.0 l/min)

B.0.10 l/s (6.0 l/min)

C.0.20 l/s (12.0 l/min)

D.0.50 l/s (30.0 l/min)

Explanation: In Swiss drinking water dimensioning under SVGW guideline W3, 1 Loading Unit (1 LU) is defined as a standard continuous draw-off volume flow of qD = 0.10 l/s (equivalent to 6.0 liters per minute).

9A residential bathroom contains: 1 washbasin (1 LU), 1 shower with thermostat (2 LU), and 1 toilet with 6-liter cistern (1 LU). What is the total sum of Loading Units (Summen-LU) for this bathroom?

A.3 LU

B.4 LU

C.6 LU

D.8 LU

Explanation: According to the SVGW W3 fixture valuation table: Washbasin = 1 LU, Shower mixer = 2 LU, WC cistern (6L) = 1 LU. The total sum is 1 + 2 + 1 = 4 LU (which equals a connected load of 0.40 l/s).

10What is the maximum recommended flow velocity (Fliessgeschwindigkeit) in drinking water main distribution pipes (Hauptverteilleitungen) and risers (Steigleitungen) under SVGW W3 to prevent acoustic disturbance and pipe erosion?

A.1.0 m/s

B.2.0 m/s

C.3.5 m/s

D.5.0 m/s

Explanation: SVGW W3 specifies an upper limit of 2.0 m/s for flow velocity in main distribution lines and vertical risers during peak volume flow. This limit prevents excessive pressure loss, hydraulic water hammer, cavitation erosion, and acoustic transmission through building structures.

About the Sanitärmeister/in HFP Exam

This Swiss federal higher professional examination certifies master plumbers and sanitary engineering contractors. Administered by suissetec under SBFI supervision, it validates expertise in drinking water hygiene (SVGW W3/E1), backflow prevention (DIN EN 1717), building drainage (SN 592000), gas systems (SVGW G1), hot water engineering (SIA 385/1), suissetec costing, and Swiss contract law (SIA 118, OR).

Assessment

Part 1 Fallstudie Unternehmensführung: written, 4 hours. Part 2 Diplomarbeit Sanitär: written home assignment plus oral presentation and Fachgespräch. Part 3 Berufskunde Gas und Wasser: oral, 60 minutes. Governed by the suissetec Prüfungsordnung of 3 May 2007 and the Wegleitung of 16 June 2021.

Time Limit

4 hours written plus 1 hour oral Berufskunde, in addition to the home-produced Diplomarbeit and its oral defence

Passing Score

Grade of at least 4.0 on the Swiss 1.0–6.0 scale in every examination part

Exam Fee

CHF 1,100 (CHF 500 net for staff of suissetec member firms) (suissetec QS-Kommission, examinations at Hägendorf SO and the suissetec Campus Lostorf SO, under SBFI supervision)

Sanitärmeister/in HFP Exam Content Outline

30%

Trinkwasserinstallationen und Hygiene

SVGW W3/E1 hygiene, DIN EN 1717 backflow prevention, pipe sizing (LU), hot water & circulation (SIA 385/1/2), legionella prevention, pressure boosting.

25%

Liegenschaftsentwässerung und Gas

SN 592000 drainage norms, DU discharge calculations, rainwater harvesting, sewage lifting units, grease separators, SVGW G1 gas installations.

25%

Projektmanagement und Kalkulation

Tendering, suissetec calculation methods, NPK 400 series, offer calculation, site measurement, billing, SIA 118 contract management.

20%

Unternehmensführung und Recht

Business administration, Swiss corporate law (OR), labor law (GAV Gebäudetechnik), SUVA safety, water protection act (GSchG), quality management.

How to Pass the Sanitärmeister/in HFP Exam

What You Need to Know

Passing score: Grade of at least 4.0 on the Swiss 1.0–6.0 scale in every examination part
Assessment: Part 1 Fallstudie Unternehmensführung: written, 4 hours. Part 2 Diplomarbeit Sanitär: written home assignment plus oral presentation and Fachgespräch. Part 3 Berufskunde Gas und Wasser: oral, 60 minutes. Governed by the suissetec Prüfungsordnung of 3 May 2007 and the Wegleitung of 16 June 2021.
Time limit: 4 hours written plus 1 hour oral Berufskunde, in addition to the home-produced Diplomarbeit and its oral defence
Exam fee: CHF 1,100 (CHF 500 net for staff of suissetec member firms)

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

Sanitärmeister/in HFP Study Tips from Top Performers

1Master SVGW W3/E1 drinking water hygiene standards: storage temp >= 60°C, circulation return >= 55°C, cold water <= 25°C.

2Know DIN EN 1717 fluid categories (1-5) and required backflow preventers (BA for category 4, AA/AB for category 5).

3Calculate drainage peak flow Q_ww per SN 592000 using discharge units (DU) and K-factors.

4Apply SIA 118 contract provisions: joint inspection (Art. 158), 2-year guarantee notice (Art. 172), and 5-year defect limitation (Art. 180).

Frequently Asked Questions

Is the official HFP Sanitärmeister exam multiple choice?

No. The official examination consists of written technical project designs, hydraulic calculations, and an oral master colloquium. This bank is an English MCQ study adaptation.

Which languages are official?

The official examination is available in German, French, and Italian.

What is the fee for the examination?

The examination fee is CHF 500 for suissetec members and CHF 1,100 for non-members. Preparatory courses are eligible for up to 50% federal subject financing from SBFI.

100+ Free Sanitärmeister/in HFP Practice Questions

Explore More Swiss Master Craftsman Diplomas (Höhere Fachprüfung Meister)

Baumeister/in mit eidg. Diplom (HFP) (Switzerland)

Dipl. Elektroinstallations- und Sicherheitsexperte/in (HFP) (Switzerland)

Dipl. Malermeister/in (HFP) (Switzerland)

Dipl. Metallbaumeister/in (HFP) (Switzerland)

Dipl. Schreinermeister/in (HFP) (Switzerland)

Dipl. Spenglermeister/in (HFP) (Switzerland)