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2026 Statistics
Key Facts: DGSA Rail Mode Exam
100 Qs
Practice Questions
SQA RID Syllabus
65%
Pass Mark
SQA DGSA Rules
5 Years
Certificate Validity
UK DfT / RID Regulations
The UK DGSA Rail exam requires a 65% pass mark on RID classification, tank wagon requirements, placarding/labelling, consignment documentation, and train marshalling/emergency response. This is an English-language MCQ study adaptation for the official assessment; it does not replace required practical, oral, written, or hands-on performance.
Sample DGSA Rail Mode Practice Questions
Try these sample questions to test your DGSA Rail Mode exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which international agreement establishes the legal framework for the carriage of dangerous goods by rail across European and participating states?
A.ICAO Technical Instructions for the Safe Transport of Dangerous Goods by Air
B.ADR (Agreement concerning the International Carriage of Dangerous Goods by Road)
C.RID (Regulations concerning the International Carriage of Dangerous Goods by Rail)
D.IMDG Code (International Maritime Dangerous Goods Code)
Explanation: RID forms Appendix C to the Convention concerning International Carriage by Rail (COTIF) and sets out the uniform rules for transporting dangerous goods by rail across Contracting States.
2In Great Britain, which statutory instrument enforces RID requirements for domestic rail carriage of dangerous goods?
A.The Railways and Other Guided Transport Systems (Safety) Regulations (ROGS)
B.The Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations (CDG)
C.The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR)
D.The Health and Safety at Work etc. Act 1974
Explanation: The UK Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations (CDG) transpose RID rules into GB domestic law for rail transport operations.
3According to RID 1.8.3, which undertakings involved in dangerous goods transport by rail are required to appoint a Dangerous Goods Safety Adviser (DGSA)?
A.Only railway undertakings that own and operate freight locomotives
B.Undertakings that consign, transport, load, fill, or unload dangerous goods by rail above specified threshold exemptions
C.Undertakings transporting dangerous goods exclusively packaged in excepted quantities
D.Only chemical manufacturing facilities that produce Class 3 flammable liquids
Explanation: RID 1.8.3.1 requires any undertaking whose activities include the consigning, carriage, packing, loading, filling, or unloading of dangerous goods by rail to appoint one or more DGSAs unless fully exempt.
4What is a mandatory duty of a DGSA under RID 1.8.3.3 regarding annual reporting?
A.Issuing train driver safety licenses prior to every rail departure
B.Preparing an annual report on the undertaking's dangerous goods activities for management or local authorities
C.Conducting daily mechanical brake checks on rail tank wagons
D.Submitting monthly tax returns on hazardous chemical shipments to customs
Explanation: RID 1.8.3.3 mandates that the DGSA prepare an annual report for management on the undertaking's dangerous goods activities, which must be retained for 5 years and made available to competent authorities.
5Under RID Chapter 2.2, which hazard class covers Explosive substances and articles?
A.Class 2
B.Class 4.1
C.Class 3
D.Class 1
Explanation: RID Class 1 comprises explosive substances, explosive articles, and substances/articles manufactured to produce a practical explosive or pyrotechnic effect.
6What is the flash point limit for a liquid to be classified as a Class 3 Flammable Liquid under RID Chapter 2.2?
A.Flash point of not more than 23°C
B.Flash point of not more than 60°C
C.Flash point of not more than 100°C
D.Flash point of not more than 0°C
Explanation: Under RID 2.2.3.1.1, Class 3 covers liquids and liquid desensitized explosives with a flash point of not more than 60°C (with specific provisions for gas oil, diesel fuel, and heating oil light).
7Which hazard class under RID applies to Radioactive material?
A.Class 9
B.Class 6.2
C.Class 7
D.Class 8
Explanation: RID Class 7 covers radioactive material emitting ionizing radiation, subject to stringent packaging and transport criteria under RID Chapter 2.2.7.
8Under RID 1.1.3.6, how are total quantity limits calculated for small load exemptions on rail transport units?
A.By limiting total volume to 5,000 litres regardless of hazard classification
B.By multiplying the quantity of dangerous goods in each transport category by its category factor and ensuring the sum does not exceed 1,000 calculated units
C.By weighing the total wagon tare weight against gross load capacity
D.By calculating the ratio of solid payload weight to fluid volume in tank containers
Explanation: RID 1.1.3.6 specifies transport categories 0 to 4 with multiplication factors (50 for Cat 1, 3 for Cat 2, 1 for Cat 3). If the sum of calculated units does not exceed 1,000, partial exemption applies.
9Which participant in the transport chain is primarily responsible for ensuring that dangerous goods are classified and authorized for rail transport before handing them over to the railway undertaking?
A.The Rail Freight Shunter
B.The Locomotive Driver
C.The Track Infrastructure Manager
D.The Consignor
Explanation: RID 1.4.2.1 specifies that the consignor is obligated to hand over for carriage only consignments which comply with RID, including correct classification, packaging, and documentation.
10Under RID 1.1.3.1(a), under what condition is the carriage of dangerous goods by private individuals exempt from RID provisions?
A.Whenever the goods are transported in quantities up to 10 metric tons
B.When carried in uncleaned tank containers owned by private citizens
C.When the goods are packaged for retail sale, intended for personal or domestic use or leisure, and measures are taken to prevent leakage
D.Provided the dangerous goods consist solely of Class 1.1A explosives
Explanation: RID 1.1.3.1(a) exempts carriage by private individuals where goods are packaged for retail sale and intended for personal/domestic use, subject to quantity limits and leak prevention.
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