T4 Brakes ASE LATEST UPDATED 2025/2026 Exam WITH COMPLETE Question And SURE VERIFIED SOLUTIONS 100% GRADED AT A+ SCORE!!

T4 Brakes ASE LATEST UPDATED 2025/2026 Exam WITH COMPLETE Question And SURE VERIFIED SOLUTIONS 100% GRADED AT A+ SCORE!! 1. Which of the following could cause the brakes on a truck to wear too fast? A. glazed drums B. wrong linings installed C. Low air pressure D. governor cut out pressure - ANSWER B. wrong linings installed 2. Air compressor has a broken connecting rod. the compressor crankshaft is not discolored. What is the cause? - ANSWER restricted air discharge line 3. all the brakes wear too quick on a truck. what is the cause? - ANSWER sticking foot valve - causes brake drag 4. Tech A says brake fluid should be changed every 12 months or 12000 miles. Tech B says brake fluid should be purchased in small containers. Whos correct? - ANSWER Tech B. Brake fluid should be bought in small containers and used to prevent moisture built up 5. What can cause oil build up in the air tanks? - ANSWER A restricted discharge line - will cause increased compressor heat and can result in compressor oil passing 6. Front brakes on a truck pull when stopping. What can be the cause? - ANSWER Mismatched brake linings 7. which of the following could cause one brake on a truck to wear faster than the others? A. mismatched service brake chambers B. mismatched parking chambers C. low air pressure in service tanks D. governor cut out too low - ANSWER A. mismatched service chambers 8. what force is used to apply the foundation brake wheel cylinders? A. hydraulic from the steering reservoir B. mechanical C. electrical D. hydraulic from the master cylinder - ANSWER D. 9. there's an audible air leak from under the dash when the foot valve is applied. technician A says the double check valve may be faulty. Tech B says the single check valve may be faulty. who's correct? - ANSWER Tech A only 10. on a straight truck equipped with air brake, the secondary tank pressure gauge falls to zero when the wet tank air is drained. Tech A says the one way check valve is faulty, Tech B says the foot valve may be faulty. Who's correct? - ANSWER Tech A only. one way check valve protects secondary tank 11. Air dryer purges too often. Tech A says the air dryer delivery check Valve may be faulty. Tech B says a leaking wet tank could be the cause. Who's correct? - ANSWER C. Both Techs. 12. The safety valve releases on the air tank. Which is the most likely cause? A. plugged line from the supply tank to governor. B. faulty tractor protection valve C. stuck spitter on the air drier D. faulty secondary tank - ANSWER A. if the line was plugged, the governor would not unload the compressor 13. A truck with hydraulic disc/drum brakes has a high firm pedal with poor stopping. what could be the cause? - ANSWER The brake linings are glazed! Glazed brake linings will allow the pedal to feel high and firm with no stopping power 14. Air builds on a truck in 1.5 minutes. The specs. manual says it should take 3.5 min. Tech A says the air tanks could have water build up. Tech B says the air tanks could have oil built up. Whos correct? - ANSWER C. Both technicians. Any Build up reduces volume for stored air 15. Brake fluid is leaking from the rear of a master cylinder on a hydro boost brake system. What is the likely cause? - ANSWER Primary seal leaking. 16. Air pressure build up time on a gear driven compressor is greater than specifications. What is the cause? A. a slipping drive B. a leaking service relay C. leaking primary tank