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100+ Free UK ADR Tankers Practice Questions

Pass your UK ADR Dangerous Goods Driver Tankers Exam (Qualifications Scotland / DfT) exam on the first try — instant access, no signup required.

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2026 Statistics

Key Facts: UK ADR Tankers Exam

25 MCQs

UK ADR tanks specialisation CBT is commonly a 25-question multiple-choice paper

UK ADR training provider exam structure summaries (e.g. Logicom Hub)

70%

Typical pass mark for UK ADR module papers including tanks

UK ADR training provider exam tables / SQA-delivered CBT practice

10 units

DVSA initial tanker syllabus planning uses 10 teaching units (plus employer vehicle-specific units)

GOV.UK ADR driver training syllabus — Tanker unit

5 years

ADR driver training certificate validity before refresher and re-examination

ADR Chapter 8.2 / UK provider guidance

T.1–T.6

Official tanker learning blocks from additional tank provisions through incident actions

GOV.UK Dangerous goods (ADR) driver training syllabus

100

Free original practice questions on this OpenExamPrep bank

OpenExamPrep

UK ADR tanks is a specialisation CBT (commonly 25 MCQs, 70% pass) for drivers carrying dangerous goods in tanks. It covers tank codes/construction, fill and discharge, marking/equipment, cleaning/degassing, and tanker emergencies (surge, BLEVE, spills). This free bank has 100 practice questions mapped to those topics.

Sample UK ADR Tankers Practice Questions

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

1In an ADR tank code for liquids such as L4BN, what does the letter L indicate?
A.Tank for substances in the liquid state (or solids carried molten)
B.Tank limited to flammable liquids only
C.Low-pressure atmospheric tank only
D.Lined tank with rubber or epoxy coating
Explanation: Under ADR 4.3.4, the first character of the tank code is L for liquid-state substances (including solids handed over molten) or S for solids (powdery/granular). L does not mean 'limited' or 'lined'.
2In tank code L4BN, what does the figure 4 represent?
A.Maximum number of compartments allowed
B.Minimum calculation pressure of 4 bar
C.Packing group IV substances only
D.Four orange plates required on the vehicle
Explanation: The second element of an ADR 4.3 tank code is the minimum calculation pressure in bar (or G for the general minimum). In L4BN, 4 means a 4 bar calculation pressure.
3In ADR tank codes for Classes 1 and 3–9, what does opening letter B mean?
A.Battery-vehicle for compressed gases only
B.Breather device fitted as standard
C.Bottom filling or bottom-discharge openings with three closures
D.Baffled tank with no bottom outlets
Explanation: ADR 4.3.4 / 6.8.2.2: A = bottom openings with 2 closures; B = bottom openings with 3 closures; C = top fill/discharge with only cleaning openings below liquid; D = top openings with no openings below liquid.
4In tank code L4BN, what does the final letter N indicate about safety devices?
A.Tank with a simple breather and no flame protection
B.Tank with a flame-trap breather device
C.Hermetically closed tank
D.Tank without a breather device and not hermetically closed
Explanation: For Classes 1 and 3–9: V = breather without flame protection; F = breather with flame protection; N = no breather and not hermetically closed; H = hermetically closed.
5What does FL mean when applied to ADR tank vehicles?
A.Vehicle approved for flammable liquids (and certain flammable gases) with enhanced fire/electrical protection
B.Flexible lined tank only
C.Front-loading only tanker
D.Fuel-licence exemption marking
Explanation: ADR distinguishes AT and FL vehicle designations. FL vehicles meet additional construction/equipment requirements for flammable liquids and certain Class 2 flammable gases (e.g. electrical equipment, fire protection).
6Compared with an FL tank vehicle, an AT tank vehicle is generally intended for:
A.Only empty unclean tanks
B.Carriage of substances that do not require the full FL flammable-liquid vehicle protection package
C.Explosives in portable tanks only
D.Any substance without needing a tank code
Explanation: AT (other than FL) tank vehicles are approved for tank carriage where FL-specific flammable protection is not required. The substance still needs an appropriate tank code and Chapter 4.3 provisions.
7Why are baffles fitted inside many liquid tanks?
A.To replace the need for orange plates
B.To increase maximum allowable working pressure
C.To reduce liquid surge and improve vehicle stability when partly filled
D.To allow mixed incompatible products in one compartment
Explanation: Baffles break up free liquid surface movement (surge), reducing longitudinal and lateral forces that contribute to instability and rollover risk when tanks are not full.
8What is the main purpose of dividing a tanker into compartments?
A.To allow bottom openings with only one closure
B.To avoid needing ADR documentation
C.To eliminate the need for a tank code
D.To carry different products separately and limit free surface/surge in each section
Explanation: Compartments allow multi-grade carriage and reduce free-surface effects within each section. Each product still needs correct documentation, marking, and tank-code suitability.
9Which materials are commonly used for ADR tank shells?
A.Stainless steel, mild steel, aluminium, nickel, or fibre-reinforced plastic, sometimes with linings
B.Only mild steel without any lining options
C.Only thermoplastic sheet without structural shell design approval
D.Only timber-framed panels without metallic or FRP shells
Explanation: GOV.UK tanker syllabus T.2.2 lists stainless steel, mild steel, aluminium, nickel, FRP, and various linings as construction materials for tanks and tank containers.
10Atmospheric (non-pressure) tanks are primarily designed to carry products that:
A.Always require hermetic Class 2 gas coding
B.Do not require elevated design pressure beyond the tank’s atmospheric/low-pressure rating
C.Must be carried only in portable tanks with T75
D.Are exempt from ullage and filling-ratio rules
Explanation: Atmospheric tanks are for products whose carriage conditions match low/atmospheric design pressure. Pressure tanks are used when vapour pressure or process conditions demand higher ratings. Filling ratios/ullage still apply.

About the UK ADR Tankers Exam

The UK ADR tanks specialisation examination is the multiple-choice CBT paper drivers must pass to add tanker entitlement to an ADR driver training certificate. It follows the DVSA-approved tanker syllabus units (T.1–T.6): additional provisions for tanks and tank containers, vehicle/tank construction including AT and FL approvals, filling ratios and ullage, open/closed and top/bottom filling and discharge systems, placarding and documentation, cleaning and purging, on-road surge/rollover behaviour, BLEVE awareness, and incident actions. The paper is taken in addition to the Core module and is typically 25 questions with a 70% pass mark. The ADR card is valid for five years.

Questions

25 scored questions

Time Limit

About 30–45 minutes (centre-scheduled CBT; exact timer varies by centre)

Passing Score

70% (commonly 18/25 on the tanks paper)

Exam Fee

SQA exam about £20–£30 per paper; tanks tuition add-on typically £120–£180 (full provider packages that include tanks often ~£550–£800 incl. VAT) (Qualifications Scotland (exam delivery/marking) on behalf of DfT; training programmes approved by DVSA)

UK ADR Tankers Exam Content Outline

25%

Tank construction and codes

Definitions and plating, materials, baffles/compartments, AT/FL, tank codes (L/S, calculation pressure, openings A–D, V/F/N/H), portable tank T-instructions, MAWP and service equipment.

25%

Filling and discharge

Filling ratios/ullage, overfill control, open vs closed systems, top/bottom loading, gravity/pump/pressure/vacuum discharge, tipping tanks, static bonding, and load/unload checks.

20%

Marking and equipment

Orange plates (HIN/UN), placards, multi-load displays, transport documents, Instructions in Writing, approval certificate, extinguishers and crew equipment.

15%

Cleaning and degassing

Cleaning/purging tanks and ancillaries, degassing before entry or product change, residual hazards on uncleaned empties, and lawful waste handling.

15%

Emergencies

BLEVE, rollover/surge driving technique, spill containment, fire and casualty priorities, tunnel routing, emergency-service liaison, and reporting via the carrier.

How to Pass the UK ADR Tankers Exam

What You Need to Know

  • Passing score: 70% (commonly 18/25 on the tanks paper)
  • Exam length: 25 questions
  • Time limit: About 30–45 minutes (centre-scheduled CBT; exact timer varies by centre)
  • Exam fee: SQA exam about £20–£30 per paper; tanks tuition add-on typically £120–£180 (full provider packages that include tanks often ~£550–£800 incl. VAT)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

UK ADR Tankers Study Tips from Top Performers

1Memorise tank-code structure: L/S, calculation pressure (or G), openings A–D, and safety letters V/F/N/H — then practise decoding examples such as L4BN.
2Know why ullage exists and what overfilling does to pressure and spill risk; link this to MAWP during pump or pressure discharge.
3Drill static precautions: bonding/earthing, splash vs closed/bottom loading, and when anti-static clothing/tools matter.
4Separate placards (hazard diamonds) from orange-plate marking (HIN/UN) and know multi-compartment display expectations.
5For emergencies, connect surge → rollover technique, fire engulfment → BLEVE, and always use Instructions in Writing plus accurate load identity for responders.

Frequently Asked Questions

What is the UK ADR tanks exam?

It is the specialisation multiple-choice CBT paper for drivers who will carry dangerous goods in tanks or tank containers. You take it after DVSA-approved tanks training, usually alongside or after the Core module, and a pass adds tanks entitlement on your ADR card.

How many questions are on the ADR tanks paper?

UK provider and SQA-aligned materials commonly describe the tanks paper as 25 multiple-choice questions with a 70% pass mark (about 18 correct).

Do I need Core as well as tanks?

Yes. Tanks is a specialisation. You need the Core module (and any class modules required for your loads). Packages is a separate specialisation for packaged goods.

How long is the ADR certificate valid?

Five years. You must complete refresher training and pass exams for the modules you hold within the final 12 months before expiry (processing cut-offs may require several weeks remaining).

What topics does the tanks syllabus cover?

The GOV.UK tanker unit covers tank definitions and approvals, construction and filling ratios, loading/unloading and static electricity, filling/discharge systems, on-road load movement and rollover, and actions after incidents including BLEVE awareness.

Who sets the UK ADR driver exams?

Training programmes are approved by DVSA. Examinations for ADR driver certificates in Great Britain are delivered under arrangements with Qualifications Scotland (SQA successor) for the Department for Transport.