Texas CDL Pre-Trip Inspection: Engine Compartment Test 2026
15 questions on what to check under the hood - belts, fluid levels, and leaks - before driving.
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About the Texas CDL engine compartment test
Open the hood and the pre-trip turns into a hunt for leaks, wear, and looseness. This Texas CDL engine compartment inspection test drills what you look at and what you say about it, from fluid levels to belt tension.
Practice items cover oil and coolant levels, power steering fluid, water pump and alternator belts with roughly three quarters of an inch of play, hoses free of cracks and bulges, wiring insulation intact, no puddles beneath the engine, and the leaf springs, shock absorbers and steering linkage visible from the front. That is bread-and-butter pre-trip inspection knowledge for a Texas CDL in 2026.
The Texas CDL Manual describes each engine compartment item and is where you confirm the exact number of pre-trip questions on the exam. Run this test until naming a component and its defect condition costs no effort.
Every question traces back to the Texas CDL Manual - skim the right-of-way and signs chapters before your retake.
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Exam Simulator
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English + Spanish
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🎓 Exam Mode - just like the real thing
- ⏱ 11-minute timer, same as your DMV
- 🙈 No hints, no instant feedback
- 🔀 Questions come in random order
- ❌ More than 3 mistakes ends the exam - like the real one
- 💾 Your practice progress on this test stays saved

