CDL Doubles Triples Prep

Doubles & Triples Endorsement

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Master doubles and triples coupling, inspection, and handling rules. Practice questions built for the T endorsement knowledge test. Pass with confidence. Study for the US CDL Doubles/Triples endorsement knowledge test with original practice questions written for this app from the publicly available FMCSA/AAMVA CDL manual. Every question has a clear explanation. WHAT YOU GET - Coupling and uncoupling, inspecting doubles/triples, the crack-the-whip effect and rollover, air brakes and trailer order, safe driving, and the regulations. - A clear explanation for every question. - Timed practice tests that mirror the real endorsement test. - Progress saved on your device, no sign-up, works offline. ORIGINAL & SAFE Every question is written for this app from the public CDL manual. Nothing is copied from any real exam, test pool or third-party question bank. FREE TO START Practice free, then a single one-time purchase unlocks the full question bank and unlimited timed tests, no ads, no subscription, no account. NOTE Unofficial study and practice app. Not affiliated with, endorsed by, or sponsored by FMCSA, AAMVA, any state DMV or any government agency. For learning only; does not guarantee passing any exam.

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Brand-new design with a cleaner, faster interface and a bottom tab bar. The mock exam now works like the real test — flag questions to review, move freely between them, change your answers, and see your score at the end. Track your progress and review the questions you missed.

Version 1.1.0

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    The developer does not collect any data from this app.

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    Information

    Seller
    • FLY SKY PTY LTD
    Size
    • 19.4 MB
    Category
    • Education
    Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPad
      Requires iPadOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Fly Sky Pty Ltd
  • Developer Website
  • Privacy Policy

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