Free Practice Questions for STCW Oil/Chemical Tanker (Basic)
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Key Facts: STCW Oil/Chemical Tanker (Basic) Exam
V/1-1
STCW Regulation
STCW Convention and Code, Table A-V/1-1-1
One combined
Oil and Chemical Certificate
IMO Model Course 1.01
8% or less
Inerted Tank Oxygen Level
Inert gas system requirement
20.9%
Safe Entry Oxygen
Enclosed-space entry standard
3 months
Alternative Tanker Sea Service
STCW Regulation V/1-1
15 ppm
MARPOL Oily Water Discharge Limit
MARPOL Annex I
46 CFR Part 13
USCG Tankerman Basis
USCG Subpart F
STCW V/1-1 basic training for oil and chemical tanker cargo operations is the entry-level tanker certificate for crew with cargo duties on oil and chemical tankers, delivered worldwide by flag-state-approved centers (typically a 4-5 day course) and assessed by a written/MCQ test plus practical demonstration against Table A-V/1-1-1. Prerequisites are STCW basic safety training (A-VI/1) plus the approved course or three months approved tanker sea service. Content spans tanker types and cargo systems; cargo properties (flashpoint, vapour pressure, the LEL/UEL flammable range, the fire triangle); hazards (H2S, benzene and toxicity, electrostatic charging, reactivity, corrosion); hazard controls (inerting to 8% oxygen or less, purging, gas-freeing, gas measurement); safety equipment (breathing apparatus, enclosed-space entry, hot-work permits); tanker firefighting with foam; and pollution prevention under MARPOL Annexes I and II with SOPEP/SMPEP. It is one combined oil-and-chemical certificate; liquefied gas tankers require separate V/1-2 training.
Sample STCW Oil/Chemical Tanker (Basic) Practice Questions
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1Under STCW Regulation V/1-1, which prior training is a prerequisite before a seafarer can be certificated in basic training for oil and chemical tanker cargo operations?
2As an alternative to completing the approved basic tanker training course, what minimum seagoing service allows assignment of cargo-related duties under Reg V/1-1?
3Which of the following best describes a 'product tanker'?
4On a typical oil tanker, what is the primary purpose of inert gas in the cargo tanks?
5The lower flammable limit (LFL) of a hydrocarbon vapour-air mixture is best defined as the concentration:
6A cargo atmosphere whose hydrocarbon concentration is above the upper flammable limit (UFL) is described as:
7The flashpoint of a petroleum liquid is the lowest temperature at which:
8A cargo with a high vapour pressure (such as light naphtha) compared with a low-vapour-pressure cargo will:
9Hydrogen sulphide (H2S), which may be present in some crude oils, is particularly dangerous because at higher concentrations it:
10Benzene, present in many crude oils and some refined products, is classified as a serious health hazard mainly because long-term exposure is associated with:
About the STCW Oil/Chemical Tanker (Basic) Exam
STCW Basic Training for Oil and Chemical Tanker Cargo Operations is the mandatory minimum tanker familiarization training under STCW Regulation V/1-1 and Table A-V/1-1-1 for masters, officers and ratings assigned cargo-related duties on oil and chemical tankers. It is delivered as one combined certificate covering both oil and chemical tankers, based on IMO Model Course 1.01. Candidates must already hold basic safety training (Section A-VI/1) and either complete the approved basic course or have at least three months of approved tanker sea service. The course covers tanker construction and cargo systems, cargo properties and hazards, hazard controls, safety equipment, firefighting and pollution prevention, and ends with a written/MCQ and practical assessment.
Exam sponsor: Flag-state-approved maritime training centers under the STCW Convention and Code. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Question count not published by the exam provider
Time Limit
Set by the training center (end-of-course assessment after a 4-5 day course)
Passing Score
Pass mark set by the approved training center, demonstrating Table A-V/1-1-1 competence
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
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.
Tanker Fundamentals & Cargo Operations
Tanker types (crude, product, chemical), general arrangement and construction, cargo pumps and piping systems, venting and pressure/vacuum valves, ullage and closed gauging, the ship/shore safety checklist, and the framework of STCW V/1-1, the IBC Code and ISGOTT
Cargo Properties
Flammability and the fire triangle, flashpoint and auto-ignition temperature, the lower and upper flammable limits (LEL/UEL) and the flammable range, vapour pressure and volatility, and vapour density that makes heavier-than-air vapours collect in low spaces
Tanker Hazards
Health hazards including H2S olfactory fatigue, benzene carcinogenicity and toxicity exposure routes; environmental hazards; reactivity, inhibitors and cargo incompatibility; corrosion; explosion and flammability; electrostatic charge generation, settling time and vapour clouds; and use of the MSDS/SDS
Hazard Controls
Inerting and the inert gas system (oxygen 8% or less, deck water seal), purging and gas-freeing to avoid the flammable range, water padding and drying agents, anti-static measures, and gas-measuring instruments (explosimeter/%LEL, oxygen analyser, tankscope and personal monitors) with calibration
Safety Equipment & Protection
PPE selection from the SDS, self-contained breathing apparatus and respiratory protection, resuscitation and emergency showers/eyewash, enclosed-space entry testing and rescue procedure, hot and cold work permits, and non-sparking tools and intrinsically safe equipment for ignition control
Tanker Firefighting
Fixed deck foam systems and how foam smothers flammable-liquid fires, dry chemical powder for rapid knockdown, firefighting readiness during cargo work, boundary cooling to prevent escalation, and manifold fire response using emergency shutdown
Pollution Prevention & Emergencies
MARPOL Annex I oil rules (15 ppm, Oil Record Book) and Annex II NLS categories X/Y/Z/OS, prewash and the Cargo Record Book, SOPEP/SMPEP reporting, spill containment with plugged scuppers, and emergency shutdown and inert gas failure response
Preparing for the STCW Oil/Chemical Tanker (Basic) Exam
What You Need to Know
- Passing score: Pass mark set by the approved training center, demonstrating Table A-V/1-1-1 competence
- Assessment: Question count not published by the exam provider
- Time limit: Set by the training center (end-of-course assessment after a 4-5 day course)
- Exam / certification fees: Varies by training center (course fee) Official sources
Using Our Practice Resources
- Work through all 100 available questions
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STCW Oil/Chemical Tanker (Basic): Suggested Study Strategy
Frequently Asked Questions
Is there a separate basic course for oil tankers only?
No. Under STCW Regulation V/1-1 there is one combined basic certificate covering both oil and chemical tanker cargo operations, based on IMO Model Course 1.01. Oil-only and chemical-only specialisation comes at the advanced level (A-V/1-1-2 for oil, A-V/1-1-3 for chemicals).
What are the prerequisites for this training?
Candidates must first complete basic safety training under STCW Section A-VI/1. To be assigned cargo-related duties they must then either complete the approved basic oil and chemical tanker course or have at least three months of approved seagoing service on oil or chemical tankers.
How long is the course and how is it assessed?
The course typically runs about four to five days at a flag-state-approved training center and ends with an assessment. Assessment commonly uses written or multiple-choice questions plus practical demonstration of the competences set out in STCW Table A-V/1-1-1.
What is the main purpose of inert gas on a tanker?
Inert gas reduces the oxygen content of cargo tanks (delivered at about 5% oxygen or less, with the tank kept at 8% or less) so the atmosphere cannot support combustion. A slight positive pressure is maintained to prevent air being drawn in during the voyage.
Why are H2S and benzene emphasised in the hazards section?
Hydrogen sulphide can rapidly deaden the sense of smell and be fatal at higher concentrations, while benzene is a carcinogen linked to leukaemia. Both can be present in crude oil, so the course stresses gas monitoring, closed gauging, respiratory protection and exposure limits.
How does this relate to a USCG STCW endorsement?
In the United States this basic training is the basis of the STCW endorsement for oil and chemical tanker cargo operations and is paired with the national Tankerman-Assistant (Dangerous Liquid) requirements under 46 CFR Part 13, Subpart F.
Which MARPOL annexes apply to oil and chemical tankers?
MARPOL Annex I governs oil pollution prevention (including the 15 ppm machinery-space limit and the Oil Record Book), while Annex II governs noxious liquid substances carried in bulk, categorising chemicals as X, Y, Z or OS with prewash and Cargo Record Book requirements.