CDL Practice Test Study Guide: Double/Triple Trailers Endorsement

Double/Triple Trailers Endorsement Practice Test Study Guide

by: CDL Digest

Price: $1.50

Available at the following online book stores:

Amazon Kindle


Google Books


This CDL practice test study guide contains information for the Double/Triple Trailers Endorsement.

In order to obtain a Double/Triple Trailers Endorsement each applicant must have knowledge covering:

Procedures for assembly and hookup of the units;

Proper placement of heaviest trailer;

Handling and stability characteristics including off tracking, response to steering, sensory feedback, braking, oscillatory sway, rollover in steady turns, yaw stability in steady turns;


Potential problems in traffic operations, including problems the motor vehicle creates for other motorists due to slower speeds on steep grades, longer passing times, possibility for blocking entry of other motor vehicles on freeways, splash and spray impacts, aerodynamic buffeting, view blockages, and lateral placement.

Sections of this CDL Practice Test Study Guide include:

  • Pulling Double/Triple Trailers
  • Coupling & Uncoupling
  • Inspecting Doubles & Triples
  • Double/Triples Air Brake Check
  • Sample Test
  • Sample Test Answers
  • Pre-Trip Inspection Memory Aid

This CDL practice test study guide is available for digital delivery only, so there are no shipping costs. This CDL practice test study guide can be downloaded immediately after payment.


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