Free Practice Questions for Authorized Gas Tester (AGT)

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Key Facts: Authorized Gas Tester (AGT) Exam

Competency units in the BNSP-registered Skema Sertifikasi Okupasi Petugas Authorized Gas Tester

LSP PPSDM Migas scheme document

BNSP-LSP-013-ID

BNSP licence number held by LSP PPSDM Migas, active to 24 January 2030

BNSP LSP register (bnsp.go.id/lsp/ppsdm-migas)

Kompeten / Belum Kompeten

Result categories used by BNSP assessors; no percentage pass mark is published

BNSP competency assessment scheme rules

3 years

Certificate validity period

BNSP certification policy

LSP PPSDM Migas (BNSP licence BNSP-LSP-013-ID) certifies Authorized Gas Testers under a 7-unit BNSP-registered scheme drawn from SKKNI Kepmenaker No. 130 Tahun 2018 and No. 118 Tahun 2024, assessed in Indonesian by written test, interview, and practical demonstration. This bank provides independent English-language MCQ practice, not an official translation or a substitute for practical testing.

Sample Authorized Gas Tester (AGT) Practice Questions

Try these sample questions to review concepts for the Authorized Gas Tester (AGT) exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the primary statutory foundation for workplace safety in Indonesia that mandates hazard control in high-risk petrochemical and gas installations?

A.Undang-Undang No. 1 Tahun 1970 tentang Keselamatan Kerja

B.Undang-Undang No. 13 Tahun 2003 tentang Ketenagakerjaan

C.Undang-Undang No. 22 Tahun 2001 tentang Minyak dan Gas Bumi

D.Peraturan Pemerintah No. 50 Tahun 2012 tentang Penerapan SMK3

Explanation: Undang-Undang No. 1 Tahun 1970 tentang Keselamatan Kerja is Indonesia's foundational occupational health and safety statute. It establishes the legal duty of employers and managers to prevent accidents, fires, and explosions in workplaces where dangerous chemicals, gases, and high pressures are processed or stored.

2Which Indonesian government regulation specifically governs occupational safety in oil and gas refining and processing facilities (pemurnian dan pengolahan)?

A.Peraturan Pemerintah No. 19 Tahun 1973

B.Peraturan Pemerintah No. 11 Tahun 1979

C.Peraturan Menteri Tenaga Kerja No. 04 Tahun 1985

D.Peraturan Pemerintah No. 74 Tahun 2001

Explanation: Peraturan Pemerintah No. 11 Tahun 1979 specifically regulates occupational safety in oil and gas refining and petrochemical processing operations (Keselamatan Kerja pada Pemurnian dan Pengolahan Minyak dan Gas Bumi), establishing standards for plant inspection, pressure vessel integrity, and hazardous gas mitigation.

3Reflecting the competency units in SKKNI Kepmenaker No. 130 Tahun 2018 and standard permit-to-work systems, what is the core responsibility of an Authorized Gas Tester (Petugas AGT) on an operating site?

A.Authorizing and signing off commercial crude oil export manifests

B.Directing maintenance crews on mechanical pipe-fitting techniques

C.Conducting atmospheric testing, interpreting readings, and exercising stop-work authority if conditions exceed safe thresholds

D.Serving as the permanent facility fire chief and leading external emergency response squads

Explanation: SKKNI Kepmenaker No. 130 Tahun 2018 defines the AGT's competencies as measuring oxygen, flammable gas, and toxic gas in confined spaces and potentially hazardous atmospheres, measuring flammable gas in preparation for hot work, and monitoring flammable gas in an active hot work area. Facility permit-to-work systems then build on that by giving the AGT authority to withhold or withdraw the gas clearance, and so to prevent or halt work, when readings exceed safe limits.

4According to IEC 60079-10-1 and SNI standards for hazardous area classification in petroleum facilities, how is a Zone 0 area defined?

A.An area where an explosive gas atmosphere is not likely to occur in normal operation, and if it does, will persist for a short period only

B.An area where an explosive gas atmosphere is present continuously, for long periods, or frequently (>1,000 hours per year)

C.An area where an explosive gas atmosphere is likely to occur occasionally during normal routine operation (10 to 1,000 hours per year)

D.An unclassified area where flammable gases are stored exclusively in welded double-wall pipes

Explanation: Zone 0 is defined under IEC 60079 and Indonesian technical standards as a location where an explosive gas-air mixture is present continuously, for long periods, or frequently (typically exceeding 1,000 hours per year), such as the vapor space inside an unpurged crude oil storage tank.

5How does the operational risk of a Zone 1 hazardous area differ from a Zone 2 hazardous area when planning atmospheric testing for maintenance?

A.Zone 1 expects flammable gas releases during normal operations, whereas Zone 2 only experiences releases during abnormal faults or equipment failures

B.Zone 1 contains only heavier-than-air gases, while Zone 2 contains exclusively lighter-than-air gases

C.Zone 1 permits non-explosion-proof electrical tools, while Zone 2 requires intrinsically safe equipment

D.Zone 1 does not require hot work permits, whereas Zone 2 requires continuous atmospheric monitoring

Explanation: In hazardous area classification, Zone 1 is characterized by flammable atmospheres that are likely to occur during normal everyday operations (e.g., around sampling points or pump seals). In Zone 2, explosive atmospheres are abnormal and only occur during unusual events or equipment failures.

6Under Peraturan Menteri Ketenagakerjaan No. 5 Tahun 2018 tentang K3 Lingkungan Kerja, how is the Nilai Ambang Batas (NAB) for an 8-hour workday defined?

A.The maximum peak concentration that must never be exceeded for even a single second during a shift

B.The 15-minute average concentration of a chemical factor to which workers can be exposed up to four times per day

C.The time-weighted average concentration to which nearly all workers may be exposed for up to 8 hours a day or 40 hours a week without adverse health effects

D.The lethal concentration that causes death in 50% of an animal test population within 4 hours

Explanation: Under Permenaker No. 5 Tahun 2018, Nilai Ambang Batas (NAB) as an 8-hour Time-Weighted Average (Beban Durasi Rata-rata / TWA) represents the airborne concentration of a chemical substance to which nearly all workers may be repeatedly exposed day after day (8 hours/day, 40 hours/week) without suffering adverse health effects.

7What is the critical regulatory distinction between a Short-Term Exposure Limit (STEL / KTD) and a Ceiling limit (Kadar Tertinggi) under Indonesian occupational hygiene rules?

A.A STEL is a 15-minute time-weighted average that allows transient minor peaks, whereas a Ceiling limit must never be exceeded at any instantaneous moment

B.A STEL applies only to carcinogens, while a Ceiling limit applies exclusively to asphyxiants

C.A STEL is measured over an entire 8-hour shift, whereas a Ceiling limit is calculated over a 40-hour work week

D.A STEL requires supplied-air respirators, while a Ceiling limit allows unventilated entry

Explanation: A STEL (Kadar Tertinggi Diperkenankan / KTD) is a 15-minute time-weighted average exposure that must not be exceeded at any time during a workday, whereas a Ceiling limit (Kadar Tertinggi) is an absolute ceiling that must not be exceeded even instantaneously for any fraction of a second.

8According to Lampiran Permenaker No. 5 Tahun 2018, what are the statutory 8-hour TWA (NAB) and 15-minute STEL (KTD) limits for Hydrogen Sulfide (H2S)?

A.NAB 10 ppm, STEL 15 ppm

B.NAB 1 ppm (1.4 mg/m3), STEL 5 ppm (7 mg/m3)

C.NAB 20 ppm, STEL 50 ppm

D.NAB 0.1 ppm, STEL 0.5 ppm

Explanation: Permenaker No. 5 Tahun 2018 updated Indonesia's chemical exposure limits to align with modern international toxicology standards: Hydrogen Sulfide (H2S) has an 8-hour TWA (NAB) of 1 ppm (1.4 mg/m3) and a 15-minute STEL (KTD) of 5 ppm (7 mg/m3). Older standards that permitted 10 ppm TWA have been superseded.

9What is the statutory 8-hour Nilai Ambang Batas (NAB) for Carbon Monoxide (CO) in the workplace under Permenaker No. 5 Tahun 2018?

A.10 ppm (11.5 mg/m3)

B.25 ppm (29 mg/m3)

C.50 ppm (57 mg/m3)

D.100 ppm (115 mg/m3)

Explanation: In the chemical-factor annex of Permenaker No. 5 Tahun 2018, the 8-hour Time-Weighted Average (NAB) for Carbon Monoxide (CO) is 25 ppm (equivalent to 29 mg/m3). This matches the ACGIH threshold limit value, which is set to hold workers' carboxyhemoglobin (COHb) saturation to roughly 4% or less and to protect workers with cardiovascular disease.

10Under Kepmenaker No. 187/MEN/1999 tentang Pengendalian Bahan Kimia Berbahaya, what two mandatory documents/tools must be provided in workplaces storing toxic or flammable gases?

A.Surat Perintah Kerja (SPK) and purchase order receipts

B.Lembar Data Keselamatan Bahan (LDKB / SDS) and hazard labels on every container and pipeline

C.Environmental impact assessment (AMDAL) and commercial transport permits

D.Certificate of Origin and customs export clearance manifests

Explanation: Kepmenaker No. 187/MEN/1999 mandates that employers managing hazardous chemicals must provide Lembar Data Keselamatan Bahan (LDKB / Safety Data Sheet) comprising 16 standard headings and install clear hazard labels (label bahan kimia berbahaya) on all containers and piping.

About the Authorized Gas Tester (AGT) Exam

Petugas Authorized Gas Tester (AGT) is the national occupational certification for personnel who measure, test, and monitor atmospheric hazards—including oxygen deficiency, combustible hydrocarbons, and toxic vapors—prior to and during confined space entry and hot work operations in the oil, gas, and petrochemical industries, assessed by LSP PPSDM Migas against SKKNI Kepmenaker No. 130 Tahun 2018.

Exam sponsor: LSP PPSDM Migas (BNSP-LSP-013-ID). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Candidates submit an application with self-assessment (asesmen mandiri) and workplace portfolio evidence, followed by a formal competency assessment at a verified TUK comprising written tests, an oral technical interview, and hands-on practical demonstration of gas detectors and SCBA equipment.

Time Limit

Not published as a fixed assessment duration; providers schedule AGT training plus competency assessment over roughly 3 to 5 days, with the assessment itself typically occupying the final day

Passing Score

Kompeten (competent) or Belum Kompeten (not yet competent) — assessors judge each of the 7 units against the valid, authentic, current, and sufficient (VACS) evidence rules; BNSP does not publish a percentage pass mark

Exam / Certification Fees

Not published as a fixed public tariff; the assessment fee is quoted per scheme through the PPSDM Migas certification portal, and third-party providers advertise AGT training-plus-certification packages at TUK PPSDM Migas Cepu in the low millions of rupiah

Exam sponsor website

Reported exam pass rate: Not published. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

LSP PPSDM Migas — Skema Sertifikasi Okupasi Petugas Authorized Gas Tester (7 competency units, BNSP scheme register entry 36) · Source checked 2026-09-14
BNSP — LSP PPSDM Migas Licence (BNSP-LSP-013-ID) · Source checked 2026-09-14
JDIH Kemnaker — Kepmenaker No. 130 Tahun 2018 (SKKNI sub-bidang Authorized Gas Tester; units B.09AGT00.001.1 to .003.1) · Source checked 2026-09-14
Kemnaker SKKNI register — Kepmenaker No. 118 Tahun 2024 (SKKNI K3 Industri Migas; units B.09KKK00.001.3, .003.3, .004.3, .005.3) · Source checked 2026-09-14
PPSDM Migas — Layanan Pendaftaran Sertifikasi Portal · Source checked 2026-09-14

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

15 of 100 questions

K3 Regulations, Safety Management & Hazardous Areas

UU No. 1/1970, UU No. 22/2001, PP No. 11/1979, Kepmenaker No. 187/MEN/1999, the three AGT units of SKKNI Kepmenaker No. 130/2018, Permenaker No. 5/2018 chemical exposure limits, and Zone 0/1/2 hazardous area classification.

15 of 100 questions

Work Permits (SIKA), Energy Isolation & Gas Testing Protocols

Hot work, cold work, and confined space entry permits, roles of AGT, Performing Authority, and Standby Person, LOTO procedures, positive isolation, and gas test validity windows.

20 of 100 questions

Personal Protective Equipment & SCBA Operations

PPE selection, positive-pressure SCBA anatomy, air duration and consumption calculations, pre-use pressure checks, facepiece fit testing, and Grade D breathing air standards.

25 of 100 questions

Atmospheric Testing in Confined Spaces: Oxygen, Flammables & Toxics

Testing order (Oxygen first, Flammables second, Toxics third), oxygen limits (19.5%-23.5%), vapor density and gas stratification, H2S and CO detection, sensor technology, and bump testing.

25 of 100 questions

Flammable Gas Testing, Monitoring & Emergency Response for Hot Work

Hot work 0% LEL criteria, facility hot work control radius, purging and nitrogen inerting, pyrophoric iron sulfide scale hazards, continuous monitoring, ventilation safety, and emergency response actions.

Preparing for the Authorized Gas Tester (AGT) Exam

What You Need to Know

Passing score: Kompeten (competent) or Belum Kompeten (not yet competent) — assessors judge each of the 7 units against the valid, authentic, current, and sufficient (VACS) evidence rules; BNSP does not publish a percentage pass mark
Assessment: Candidates submit an application with self-assessment (asesmen mandiri) and workplace portfolio evidence, followed by a formal competency assessment at a verified TUK comprising written tests, an oral technical interview, and hands-on practical demonstration of gas detectors and SCBA equipment.
Time limit: Not published as a fixed assessment duration; providers schedule AGT training plus competency assessment over roughly 3 to 5 days, with the assessment itself typically occupying the final day
Exam / certification fees: Not published as a fixed public tariff; the assessment fee is quoted per scheme through the PPSDM Migas certification portal, and third-party providers advertise AGT training-plus-certification packages at TUK PPSDM Migas Cepu in the low millions of rupiah Official sources

Using Our Practice Resources

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Authorized Gas Tester (AGT): Suggested Study Strategy

1Memorize the mandatory atmospheric testing order: Oxygen first, Flammable gases second, and Toxic gases third.

2Master SCBA air duration calculations using cylinder volume, pressure in bar, a 40 L/min consumption rate, and a 10-minute safety reserve.

3Understand why catalytic bead sensors fail in oxygen-deficient or inert atmospheres and how silicones permanently poison pellistor beads.

4Know statutory Indonesian exposure limits under Permenaker No. 5/2018, particularly H2S (1 ppm TWA, 5 ppm STEL) and CO (25 ppm TWA).

Frequently Asked Questions

What standard is the BNSP Authorized Gas Tester certification based on?

The certification is administered by LSP PPSDM Migas under the BNSP-registered Skema Sertifikasi Okupasi Petugas Authorized Gas Tester, which packages 7 competency units: the three AGT-specific units of SKKNI Kepmenaker No. 130 Tahun 2018 (B.09AGT00.001.1 to .003.1), plus four K3 migas units from SKKNI Kepmenaker No. 118 Tahun 2024 covering K3 legislation, work permits, personal protective equipment, and SCBA operation. PP No. 11 Tahun 1979 and Permen ESDM No. 32 Tahun 2021 supply the statutory backdrop for oil and gas installations.

How is the AGT competency assessment conducted?

BNSP-licensed assessors evaluate candidates through written tests (uji tulis), oral questioning/interview (wawancara), and direct practical observation (observasi/praktik) of multi-gas detector calibration, bump testing, sampling procedures, and SCBA pre-use donning.

Who is eligible to take the BNSP AGT assessment?

Candidates must hold at least an SLTA/SMK diploma (or equivalent) and have at least 3 years of continuous occupational safety and health (K3) experience in the oil and gas industry, supported by an employer recommendation and a medical fitness certificate.

What does AGT certification cost and how long is it valid?

LSP PPSDM Migas does not publish a fixed public tariff for the AGT assessment; the fee is quoted per scheme through the PPSDM Migas certification portal, and third-party providers advertise training-plus-certification packages at TUK PPSDM Migas Cepu in the low millions of rupiah. Confirm the current figure with LSP PPSDM Migas before budgeting. BNSP competency certificates are valid for 3 years, after which holders undergo recertification.

Are these practice questions an official BNSP test?

No. They are an independent English-language multiple-choice practice bank developed by OpenExamPrep covering the scheme's tested technical topics. The real assessment is administered in Indonesian and includes practical demonstration and oral evaluation.