From Section 7 of the South Carolina Commercial Driver License Manual

South Carolina CDL Doubles and Triples Practice Test

Who takes it: Class A, for the T endorsement.

Pulling two or three trailers. 20 questions, 16 right to pass (80%).

Study mode

Practice Doubles and Triples

  • 10questions a round
  • 1manual section
Exam mode

Take the Doubles and Triples test

  • 20questions
  • 16correct to pass
  • –no test taken yet
Section 7 · p. 111–114 of the South Carolina Commercial Driver License Manual (March 2025), opens in a new tab

A Doubles and Triples question to try

Why do doubles and triples need more space than other commercial vehicles?

Tap an answer to see if you’re right, and the page

Where it is in the South Carolina Commercial Driver License Manual

Your score on each part fills in as you study.

  • Manual section 7
  • Doubles and triplesNot practiced yetp. 7-1 to 7-4

The manual says to also study Sections 2, 5 and 6 for this test, so when a practice test needs more questions than this section has, it adds some from those sections.

South Carolina answers about this test

CDL Doubles and Triples Test guide16 rules, with the pages in each state's manual

Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV

All South Carolina CDL tests