Free theory test: ADR Explosives
Class 1-ADR
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How the official exam works
15
questions
3
errors allowed
75
minutes
480
kroner · Statens vegvesen
An example from the question set
What characterizes compatibility group A for explosives?
Compatibility group A covers primary detonating substances. These are highly sensitive explosives that can detonate from a small impulse such as impact, friction, or spark. Examples include mercury fulminate and lead azide.
Due to their extreme sensitivity, group A substances must never be transported together with other explosives. They require special handling and packaging to prevent accidental detonation.
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Frequently asked questions
How many errors can you have on the ADR class 1 exam?
You can have a maximum of 3 errors out of 15 questions on the ADR class 1 exam (1-ADR). You need at least 12 of 15 correct to pass at DSB.
How long does the ADR class 1 exam take?
You have 75 minutes for the ADR class 1 exam at DSB. If you take the combined exam (G-1ADR), the 135 minutes for the basic course are added, giving 210 minutes in total on the same day.
Can I take the ADR class 1 exam without the basic course?
No. The ADR basic course (G-ADR) is the mandatory foundation for the class 1 specialization. Most candidates take the basic course and class 1 on the same exam day as a combined exam (G-1ADR). Taking only the class 1 exam is relevant only if you already hold a valid ADR basic certificate.
How long is the ADR class 1 specialization valid?
The ADR competence certificate with class 1 specialization is valid for 5 years from the date of issue. Before it expires you must pass renewal exams for both the basic course and the class 1 module to retain the qualification.
Which ADR specialisations are there?
ADR training consists of a basic course (grunnkurs) and three specialisation courses: tank, class 1 (explosives) and class 7 (radioactive material). This test covers the class 1 (explosives) specialisation, which builds on the basic course.
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