CDL practice tests
Practice for commercial driver's license (CDL) knowledge tests, with original questions written from an official state CDL handbook.
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CDL air brakes test: practice test with original questions from a state CDL handbook
Practice for the CDL air brakes knowledge test with 59 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL combination vehicles test: practice test with original questions from a state CDL handbook
Practice for the CDL combination vehicles test knowledge test with 54 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL doubles and triples test: practice test with original questions from a state CDL handbook
Practice for the CDL doubles and triples (T) endorsement knowledge test with 37 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL general knowledge test: practice test with original questions from a state CDL handbook
Practice for the commercial driver's license (CDL) general knowledge test with 67 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL hazmat test: practice test with original questions from a state CDL handbook
Practice for the CDL hazardous materials (hazmat) endorsement knowledge test with 71 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL passenger test: practice test with original questions from a state CDL handbook
Practice for the CDL passenger (P) endorsement knowledge test with 46 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL school bus test: practice test with original questions from a state CDL handbook
Practice for the CDL school bus (S) endorsement knowledge test with 48 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.
CDL tank vehicles test: practice test with original questions from a state CDL handbook
Practice for the CDL tank vehicle (N) endorsement knowledge test with 39 original questions written from a state CDL handbook based on the national model manual (Texas DL-7C, revised March 2026), in English and Spanish.