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100+ Free IE F-Gas Category IV Practice Questions

QQI Level 5 Special Purpose Certificate in F-gas Non-Intrusive Leak Detection in RACHPT&T Systems (Category IV) practice questions are available now; exam metadata is being verified.

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Key Facts: IE F-Gas Category IV Exam

Leak check only

Category IV Activity Scope

EPA Ireland

No circuit break-in

Key Restriction

EPA Ireland / EU 2015/2067

Any charge size

Non-Intrusive Check Limit

EPA Ireland

QQI Level 5

Award Class (Special Purpose)

QQI Award Standard

5N0102

QQI Component Code

F-Gas Registration Ltd

100

Free Practice Questions

OpenExamPrep

Ireland's F-Gas Category IV certificate (QQI Level 5 Special Purpose Certificate in F-gas Non-Intrusive Leak Detection in RACHPT&T Systems, component 5N0102) is a leak-check-only qualification aligned with Commission Implementing Regulation (EU) 2015/2067 Annex I. Certificate holders may carry out leak checks on stationary RACHP and truck/trailer equipment without breaking into the refrigerant circuit — on any charge size — but may not install, service, recover, repair or decommission systems. Assessment is a centre-set theory test plus a practical skills demonstration on direct and indirect leak detection, graded Pass/Fail. Training is delivered by QQI-approved providers; EPA Ireland enforces F-gas compliance and F-Gas Registration Ltd maintains the Irish company certification register. This free prep includes 100 research-based practice questions on scope, regulations, detection methods, CO2e thresholds, records, safety and environmental impact, with explanations and an AI tutor.

Sample IE F-Gas Category IV Practice Questions

Try these sample questions to test your IE F-Gas Category IV exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under EPA Ireland guidance, what is the primary activity permitted by an F-Gas Category IV personal certificate?
A.Recovery of fluorinated greenhouse gases from end-of-life domestic fridges
B.Installation and commissioning of split systems of any charge size
C.Leak checking of stationary refrigeration, air-conditioning and heat-pump equipment without breaking into the refrigerant circuit
D.Compressor replacement requiring access to the pressurised circuit
Explanation: EPA Ireland states Category IV certificate holders may carry out leak checks provided the work does not entail breaking into the refrigeration circuit containing F-gases. Recovery is Category III; intrusive servicing requires Category I or II.
2Which activity is NOT permitted under an Ireland F-Gas Category IV certificate?
A.Using an electronic leak detector at external joints without opening service valves
B.Reviewing operating pressures and temperatures as an indirect leak-check method
C.Recovering refrigerant into a recovery cylinder before equipment disposal
D.Recording leak-check results for the equipment operator
Explanation: Category IV authorises leak checking without circuit break-in. Recovery, installation, servicing, repair and decommissioning require other categories.
3A Category IV holder may leak-check a commercial chiller with a 40 kg R-410A charge without opening the circuit. Is this within scope in Ireland?
A.No — charges above 3 kg always require Category I
B.Yes — Category IV is activity-limited, not limited by refrigerant charge size for non-intrusive checks
C.No — Category IV applies only to domestic fridges
D.Yes, but only if they also hold Category III
Explanation: Unlike Category II and III, Category IV is defined by the activity (non-intrusive leak checking) rather than a 3 kg charge ceiling. EPA Ireland permits leak checks on any plant if the circuit is not broken into.
4Compared with Category II, Category IV certification in Ireland is:
A.Broader — Category IV includes recovery from any charge size
B.Identical — both categories cover the same intrusive servicing tasks
C.Narrower for handling work — leak checking only without circuit access, with no installation or recovery authority
D.Limited to hermetically sealed domestic units only
Explanation: Category II covers installation, servicing, recovery and non-intrusive leak checks within charge limits. Category IV covers only non-intrusive leak checking on any size.
5A facilities manager wants annual leak checks on rooftop packaged units without opening service ports. Which personal certificate is sufficient?
A.F-Gas Category III (recovery only)
B.No personal certificate is required for external visual checks only
C.Only a company F-Gas certificate — personal certification is optional
D.F-Gas Category IV (non-intrusive leak detection)
Explanation: Statutory leak checks must be carried out by certified natural persons. Category IV qualifies personnel for leak checking without breaking into the circuit.
6Opening a service valve to attach gauge hoses for a pressure reading would:
A.Break into the refrigeration circuit and exceed Category IV authority unless the holder also holds Category I or II
B.Always be permitted under Category IV on any system
C.Be exempt because gauge hoses are not part of the circuit
D.Require only Category III certification
Explanation: Breaking into the pressurised refrigerant circuit — including opening service valves to connect gauges — is not Category IV work. Non-intrusive methods must avoid circuit access.
7The QQI award title for Ireland F-Gas Category IV is:
A.Level 5 Special Purpose Certificate in F-gas Recovery from Small RACHPT&T Systems Category III
B.Level 5 Special Purpose Certificate in F-gas Non-Intrusive Leak Detection in RACHPT&T Systems Category IV
C.Level 6 Craft Certificate in Refrigeration
D.Level 5 MAC Vehicle Air-Conditioning Attestation
Explanation: QQI's validated award standard uses this exact title for Category IV training aligned with Commission Implementing Regulation (EU) 2015/2067 Annex I Category IV.
8F-Gas Registration Ltd lists the QQI component code for Category IV as:
A.5N0102
B.5N0105
C.5N0104
D.5S0108
Explanation: F-Gas Registration Ltd's certification booklet identifies Category IV as QQI 5N0102 (Special Purpose Certificate) for leak testing of equipment.
9Category II and Category IV both allow non-intrusive leak checking. The key difference is:
A.Category IV may break into the circuit on large systems
B.Category II also authorises installation, servicing and recovery within charge limits; Category IV authorises leak checking only
C.Category II cannot perform any leak checking
D.Category IV is limited to systems under 3 kg charge
Explanation: EPA Ireland permits Category II holders to leak-check without circuit break-in on any size, but Category IV is a standalone leak-check-only qualification without other handling rights.
10Refrigeration units of refrigerated trucks and trailers are included in the Category IV QQI standard. This means:
A.Category IV holders may recover refrigerant from any truck unit
B.Truck units are exempt from all F-Gas leak-check rules
C.Truck units always require the separate MAC vehicle attestation
D.Category IV holders may perform non-intrusive leak checks on qualifying truck/trailer units without circuit break-in
Explanation: The QQI Category IV standard covers stationary RACHP and truck/trailer refrigeration units for non-intrusive leak detection, aligned with EU 2015/2067.

About the IE F-Gas Category IV Practice Questions

Verified exam format metadata for QQI Level 5 Special Purpose Certificate in F-gas Non-Intrusive Leak Detection in RACHPT&T Systems (Category IV) is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.