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Book

This informative book is designed for students who want to pass the quiz with confidence. Packed with clear explanations and visual examples, it keeps you engaged while helping you learn faster and succeed.


1. Cable barrier

A cable barrier is a type of road safety system made of tensioned steel cables mounted on posts, designed to catch and slow down vehicles that leave the roadway.

  • Several strong steel cables (usually 3 or 4) stretched between metal or concrete posts.
  • Placed along highways, medians, or road edges.
  • Flexible and designed to bend and absorb impact, not stop a vehicle abruptly.

A 2+1 road seperated by cable barrier. (Skara, Sweden) © Wikimedia.org/Joel Torsson, CC0