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Test 4
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Tennessee CDL Doubles and Triples Practice Test 4

Tennessee CDL Doubles and Triples Practice Test 4. This fourth Tennessee CDL Doubles and Triples practice test reinforces converter dollies, coupling order, air lines, emergency brakes, inspections, stability, following distance, curves, lane changes, sway, rearward amplification, uncoupling, safe parking, weight distribution, and professional control. It consists of 20 questions, with 5 questions per page, and you must answer at least 16 correctly to pass. Use this practice test to continue building the foundation for the Doubles/Triples endorsement before moving into more advanced tests. Depending on your license class and endorsements, Tennessee may also require tests for General Knowledge, Combination Vehicles, Air Brakes, Tank Vehicles, Hazmat, Passenger, and School Bus.

Questions on this page
5
Exam questions
20
Correct to pass
16
Passing score
80%
Page
1 / 4

Page 1 — 5 practice questions

CDL Doubles/Triples

Instructions

  • Select the best answer for each question.
  • Read every option carefully before choosing.
  • Complete all 5 questions on this page before moving on. Your answers stay saved when you refresh or move between pages.

Quick snapshot

  • Topic: CDL Doubles/Triples Practice Test 4
  • Focus: dollies, coupling, air lines, stability, curves, and safe control
  • Passing target: 16 of 20 • Page 1 of 4
1
Pre-trip inspection

What should be included in a pre-trip inspection of a doubles or triples combination?

Question 1
2
Air brake test

Why is an air brake check especially important with doubles and triples?

Question 2
3
Closed valve problem

What can happen if a shut-off valve is closed when it should be open?

Question 3
4
Open valve problem

What can happen if the rear shut-off valves are left open?

Question 4
5
Coupling order

Why is the correct coupling order important with doubles?

Question 5
You must answer every question on this page before continuing.
Page 1 of 4