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CDL COMBINATION VEHICLE PRACTICE TEST SKILLS EVALUATION 2026 QUESTION BANK FULL SOLUTION SET

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CDL COMBINATION VEHICLE PRACTICE TEST SKILLS EVALUATION 2026 QUESTION BANK FULL SOLUTION SET

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CDL COMBINATION VEHICLE PRACTICE TEST
SKILLS EVALUATION 2026 QUESTION BANK
FULL SOLUTION SET

◉ What happens when there is a loss of air pressure in the
emergency line?
Answer: Brakes apply


◉ Which type of trailer requires the shortest stopping distance?
Answer: Full


◉ Which statement about combination vehicles is true?
Answer: Loaded stops shortest


◉ What should you do if you cannot make a right turn without
swinging wide?
Answer: Avoid turn


◉ What causes emergency brakes to activate?
Answer: Major leak in emergency line


◉ Which vehicle follows the widest path due to off tracking?

, Answer: Doubles


◉ What should you do if stuck on railroad tracks?
Answer: Exit vehicle


◉ Where are shut-off valves located on doubles?
Answer: Rear


◉ What should you ensure before backing under a trailer?
Answer: Wheels straight


◉ How do you unlock the fifth wheel?
Answer: Pull handle to open


◉ What should you do before backing under a trailer after
connecting lines?
Answer: Supply air


◉ What is the proper trailer height?
Answer: Level


◉ Why do you connect air lines to dummy couplers?

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