Gas Questions
Practise exam-style questions that follow the same topics as your gas lessons and Viper handbook. Choose a topic to begin testing your knowledge.
Unlock All Gas Question Sets
You can practise the Regulations & Acts questions for free. To unlock all 19 gas topics and the full question bank, choose either the Questions-only plan or the full GasTheory Pro plan with lessons and questions.
Fundamentals (Track A)
Regulations & Acts
Key legislation, duties, documentation and legal responsibilities.
120 questions in this topic
Combustion, Measurement & Testing
Combustion process, analyser use, safe operation and identifying faults.
253 questions in this topic
Gas Controls
Valves, regulators, interlocks and appliance safety controls.
88 questions in this topic
Chimneys & Flues (Open & Room-Sealed)
Flue requirements, terminal positions, testing and safe operation.
200 questions in this topic
Ventilation
Room sizing, permanent vents, combustion air and unsafe situations.
120 questions in this topic
Measurement of Gas Pressure & Tightness Testing
Let-by, tightness tests, permissible pressure drops and meter checks.
80 questions in this topic
Re-Establish Gas Supplies (Purging After Testing)
Purging procedures, post-test safety and returning appliances to service.
32 questions in this topic
Pipe Sizing & Low Pressure
Pressure drop, equivalent lengths and correct pipework design.
44 questions in this topic
Checking & Setting Burner Pressure & Gas Rates
Burner pressure tests, gas rating and diagnosing incorrect combustion.
38 questions in this topic
Appliances (Track B)
Installation of Pipework & Fittings
Jointing, routing, support requirements and identifying unsafe workmanship.
70 questions in this topic
Low Pressure Meter Installations
Meter types, bypass arrangements, regulators and installation checks.
70 questions in this topic
Statutory Requirements & Unsafe Situations
How to identify and classify ID, AR and NCS situations.
40 questions in this topic
Central Heating
System layouts, controls, circulation faults and commissioning.
86 questions in this topic
Space Heaters
Open-flued, balanced flue, flueless heaters and installation checks.
64 questions in this topic
Gas Cookers
Siting, installation, stability, ventilation and testing.
58 questions in this topic
Warm Air Heaters
Warm air systems, circulation issues and safety controls.
56 questions in this topic
Water Heaters
Storage and instantaneous water heaters, flueing and safety.
54 questions in this topic
Tumble Dryers
Gas tumble dryer installation, ventilation and combustion safety.
16 questions in this topic
Fault Finding Fan-Flued Combination Boilers
Diagnostic approach, common faults and safe isolation.
140 questions in this topic