Theory Mastery

Kogeldruk middenas boven 750kg min 1 procent tmm

At most 50 kg applies to a centre-axle trailer of up to 750 kg; above 750 kg the nose weight must be at least 1% of the permitted maximum mass, so here at least 12 kg

Source: Load and trailer · checked 2026-10-23

How the exam asks it

At the Hornbach in Amersfoort you load garden fence panels onto a centre-axle trailer with a permitted maximum mass of 500 kg. What is the maximum nose weight (in kg) this trailer may have?

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Correct answer: 50 kg

Correct: 50.0 kg (±5.0).

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At a campsite in Zeeland you hitch a caravan (centre-axle trailer) to your car. The caravan's permitted maximum mass is 1,200 kg. What applies to the nose weight?

  1. At most 50 kg
  2. At most 12 kg
  3. At least 12 kg
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Correct answer: At least 12 kg

False — you turn the lower limit into an upper limit. Above 750 kg the nose weight may not be less than 1% of the permitted maximum mass: 12 kg is the minimum here, more is allowed

Why learners get this wrong: The maximum nose weight of 50 kg applies to centre-axle trailers above 750 kg permitted maximum mass.

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In heavy rain on the A12, you measure the nose weight of two centre-axle trailers parked next to you at the petrol station. Trailer 1: TMM 600 kg, nose weight 55 kg. Trailer 2: TMM 900 kg, nose weight 8 kg. What do you conclude?

  1. Only trailer 2 fails; trailer 1 is fine because 55 kg is still little weight
  2. Neither complies: no. 1 is above the 50 kg max, no. 2 is below the 1% of 900 kg min (9 kg)
  3. Only trailer 1 fails; trailer 2 is fine because 8 kg stays under 75 kg
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Correct answer: Neither complies: no. 1 is above the 50 kg max, no. 2 is below the 1% of 900 kg min (9 kg)

Why learners get this wrong: The maximum nose weight of 50 kg applies to centre-axle trailers above 750 kg permitted maximum mass.

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In the Jumbo supermarket car park, a semi-trailer of a truck combination is loading. For which type of trailer does the nose-weight rule from Book p.230 apply (max. 50 kg up to 750 kg / min. 1% TMM above it)?

  1. The centre-axle trailer
  2. Every trailer, from a small luggage trailer to the semi-trailer next to you
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Correct answer: The centre-axle trailer

Why learners get this wrong: The nose-weight requirements (max. 50 kg / min. 1% TMM) apply to every trailer, regardless of type.

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On the provincial road between two villages, far from any campsite or hardware store, you see a 1,200 kg centre-axle trailer. Statement: just like at the 750 kg threshold, the 1% requirement above it is also a maximum.

  1. True
  2. False
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Correct answer: False

Why learners get this wrong: For a centre-axle trailer above 750 kg, the nose weight may be at most 1% of the permitted maximum mass.

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