Download ASE T5 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026 and more Exams Electrical Engineering in PDF only on Docsity!
ASE T5 QUESTIONS WITH CORRECT
ANSWERS LATEST UPDATE 2026
- The truck with the air suspension system shown above leans to the right. Technician A says that valveX could be the cause. Technician B says that valve Y could be the cause. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-1. The correct answer is C, both technicians are right. Height control valves can fail in either direction-that is, by controlling the height at too great a level or at too low a level. If the truck leans, the cause can be either too great a height on one side or too low a height on the other. Until the technician knows that one side is too high or the other too low, he must assume that either valve might be malfunctioning.
- The drive axles on a truck with a walking beam suspension are out of alignment in a manner that is causing vehicle tire wear and steering instability.
Technician A says the cause could be that the torque rods are too long or too short. Technician B says the cause could be worn walking beam bushings. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-4. The correct answer is B. The beam bushings maintain horizontal alignment of the axles, especially on turns. When bushings are worn, the beam on either side can move forward or backward, turning the axles in relation to the frame and causing the type of misalignment that causes tire wear and steering problems.
- The driver of a truck says that he hears a clattering noise from the front axle when driving on a rough road. Technician A says the cause could be worn shock absorber mounting bushings. Technician B says the cause could be worn shackle bushings. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-2. The correct answer is C, both technicians are right. Either a worn shackle bushing or worn shock bushing can cause noise due to looseness when the truck
- The driver of a truck that has just had its front springs and hangers replaced says that it is hard to keep the steering wheel in a straight-ahead position. Technician A says the cause could be that the caster shims were installed backwards. Technician B says the cause could be that the wrong spring hangers were installed. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-3. The correct answer is A. Correct caster is critically important in keeping tires at the right angle and enabling the steering system to maintain directional stability. Since the caster shims would have to be removed for this work to be done, it's quite logical to assume they might have been installed backwards, which would create the critically incorrect caster setting that would make the truck wander severely.
- A steering gear binds when turning to the left after it has been adjusted. The most likely cause is that the: A. worm bearing preload was set too high B. steering shaft U-joints are sticking C. gearbox was not centered when the lash was adjusted D. recirculating ball nut thrust adjustment is off - correct answer-6. The correct answer is A. Excessive worm bearing preload would show up as binding as the steering was turned to one extreme and the friction became excessive due to the combination of
normal load and too much preload. B is not the answer because sticking U-joints should be apparent and cause rough rotation of the wheel at all steering angles. If either lash or ball nut thrust adjustment was incorrect, the box would either bind at the center or be too loose at the extremes of travel.
- Which of these is most likely to cause steering wheel shimmy? A. too much positive caster B. out-of-balance wheels C. air in the power steering system D. low tire pressure - correct answer-7. The correct answer is B. Out-of-balance wheels cause a high frequency vibration, which shows up in the wheel as shimmy. A is not the answer because caster shows up as too much self-centering action (hard steering). Air in the power steering system causes constantly or intermittently hard steering (lack of hydraulic force). Low tire pressures generally do not cause an uneven force on the steering system, but rather poor tread contact with the road and vague steering or hard steering.
- Technician A says that steering columns are collapsible to prevent the column from causing serious injury to the driver during a collision. Technician B says that when a steering column
cause imprecise steering because the full width of the tread does not contact the road surface.
- A vehicle has exhibited power steering fluid leakage. Disassembly of components has revealed deteriorated seals in both the pump and steering gear. Technician A says to find out if the vehicle has been run severely overloaded. Technician B says to check for use of an incorrect replacement hose. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-13. The correct answer is C, both technicians are right. The most likely cause of the problem is overheating of the fluid because all the seals in the system deteriorated. Running a vehicle severely overloaded or installing a hose with too small a diameter could overheat the power steering fluid and create widespread failure of the system's seals.
- A constant buzzing noise comes from the power steering pump. Technician A says the cause could be air in the system. Technician B says the cause could be that the relief valve is stuck in the open position. Who is right? A. Technician A only B. Technician B only
C. Both A and B D. Neither A or B - correct answer-9. The correct answer is A. Fluid passes through the power steering system parts at high flow rates and under high pressures. When it becomes aerated, the bubbles cause rough, uneven flow and consequent noise. When a relief valve sticks open, fluid flows more smoothly (in a less restricted manner than normal). causing no noise but poor power assist instead.
- During inspection of a tire, a technician finds a slight bulge in one area of the tread. The next step taken should be: A. Remove the tire from the rim and seal the inner liner (the bulge probably results from an air leak). B. Replace the tire as its use is in violation of CVSA regulations and would put the truck out of service if it were subjected to a roadside inspection. C. Have the tire retreaded. D. Measure the size of the bulge to see if it is no greater than 3/ inch and look for a small, blue triangle stamped into the tire nearby. - correct answer-14. The correct answer is D. A bulge not exceeding 3/8-in. and marked by a blue triangle indicates that the tire is bulging not because of a structural defect but because of a section repair. The blue triangle merely indicates a repair has been made. A tire that has a bulge from a repair of a dimension within the 3/8-in. limit
C. a wrong caster setting D. wrong tire pressure - correct answer-11. The correct answer is A. Toe-in that is incorrect causes the entire tread to contact the road at an angle; this is what produces feather-edge wear. Incorrect camber causes wear on one side of the tire because it contacts the road unevenly, from side-to-side, when camber is incorrect. C is not the answer because caster that is incorrectly set can produce poor steerability, but usually does not critically affect tire wear. Wrong tire pressures produce wear that is excessive at center or on both sides.
- Technician A says that when diagnosing a power steering leak, the wheels should be in a straight-ahead position. Technician B says that when diagnosing a power steering leak, the steering wheel should be rotated from stop-to-stop to put pressure on the system. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-15. The correct answer is B. When diagnosing a power steering leak, the area should be clean and the system should be full of power steering fluid. The engine should be started and the steering wheel rotated from stop-to-
stop, making sure the wheel is not held against either stop for more than two seconds.
- A truck's leaf springs have broken at a low mileage. A careful inspection reveals no problems related to the spring system, such as frozen shackle bushings or worn hangers, bushings or spring pins. The truck has not been run overloaded. Technician A says the problem may have occurred because the - bolt nuts were not retorqued at specified intervals after the springs were replaced. Technician B says the whole problem could be re-use of old U- bolts or installation of an inferior type of U-bolt. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-16. The correct answer is C, both technicians are right. Leaf spring stacks are extremely sensitive to proper mounting. They naturally tend to settle especially shortly after being installed. U-bolts must be of extremely high quality to retain torque adequately. Thus, the best procedure would be to replace the U-bolts with an approved part, torque the nuts to specification and be sure to retorque them at specified intervals.
- A tractor with a single height control valve exhibits a ride height that is consistently too high. A brief inspection has revealed that the height control valve is in reasonable mechanical condition
D. worn bushings in the torque rods locating the drive axles - correct answer-17. The correct answer is D. Worn bushings in the torque rods are causing the drive axles to sometimes run with their mounting angles incorrect. This, in turn, is causing the symptoms because the driveshafts sometimes operate at excessive angles. This excessive angularity causes vibration, which eventually reaches the seals and destroys them. Also, incorrect operating position causes the tires in the tandem setup to track improperly (work against each other), causing the symptoms noted. Popping the clutch frequently would be more likely to produce twisted or worn driveshafts and rapid tire wear as opposed to irregular wear. Severe imbalance, although it would wear the tires irregularly, would not tend to impact the seals. Worn shocks might cause tire wear if they were almost completely ineffective, but they would not likely cause a seal problem.
- A truck fleet has had repeated tire blowouts. Technician A says they should review their tire changing procedures to make sure the proper tire changing tools and sealing solvents are being used. Technician B says they should review their repair procedures and make sure they are sealing a tire's inner liner when a puncture occurs. Who is right? A. Technician A only B. Technician B only C. Both A and B
D. Neither A or B - correct answer-20. The correct answer is C, both technicians are right. Either improper tire changing procedures or such incorrect repair procedures as failure to seal the inner liner can result in insidious damage and a blowout down the road.
- A truck has exhibited problems with spring leaf failure that can be explained by inadequate clamping force. During an inspection, a technician is having trouble deciding whether or not a particular spring stack is adequately clamped. He knows the fasteners are properly torqued, but suspects bad fasteners have been used and wants a quick way to determine whether or not attaching parts should be replaced to protect the springs from further problems. Technician A says that if the stack feels and looks tight and parts retain the required torque after a few miles of operation, the fasteners are working. Technician B says to rap the U-bolt with a brass hammer. If the bolt yields a ringing sound, torque is probably OK. If it vields a dull thud, it should be replaced. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - correct answer-18. The correct answer is B. Pull-around torque or the torque required to turn a fastener is not always an indicator of clamping force. On the other hand, a
C. kingpin inclination and camber D. toe-in and caster - correct answer-22. The correct answer is C. This is because this sum gives the relationship between the centerline of the wheel and the centerline of the kingpin (or knuckle support pivots with lighter duty type front axles). This angle is built into the knuckle forging and remains constant unless the spindle is damaged during use. Toe-in and caster do not have any effect on this angle.
- Which of these is the LEAST likely cause of too much front tire wear? A. underinflated tires B. out-of-balance tires C. a wrong toe-in setting D. a wrong caster setting - correct answer-23. The correct answer is D. Caster does not affect the way the tread contacts the road or cause the tire to scrub down the road at an angle. Underinflation forces the edges of the tire to take most of the load, concentrating wear, as well as producing excessive flexing (squirming) of the tread and consequent wear. Tires that are out of balance focus wear where the heavier portion of the tire slaps against the road. Toe-in makes the tread scrub across the road, causing featheredge wear.
- The vehicle's suspension system must do all of the following EXCEPT: A. support the load B. articulate the load (that is, maintain alignment during up-and- down motion) C. remove excess energy that otherwise becomes stored up in the springs and prevents smooth ride D. provide a rigid foundation for frame or trailer support - correct answer-28. The correct answer is D. The suspension system is, by nature, not rigid, as a rigid system would transfer all the energy generated as the wheels run over bumps to the frame and the load. Even systems designed to support extreme loads at least incorporate rubber cushioning. The system must obviously support the load, keep the vehicle's axles and frame in appropriate alignment for safe steering and level support, and remove excess energy (with shock absorbers)
- All of these must be checked before aligning the front wheels on a truck EXCEPT: A. tire pressure B. trim height C. wheel bearing adjustment D. tire balance - correct answer-24. The correct answer is D. Tire balance is the only one of the four factors that does not affect alignment readings. An unbalanced tire will still hold the vehicle
- Which of the following is NOT a characteristic of air suspension: A. The ride is smoother when the truck runs empty. B. is more often used on drive and trailer axles than on the front axle C. does not provide much roll stiffness (allows the vehicle to lean more in turns than springs) D. has springs that usually last a long time - correct answer-29. The correct answer is C. Air suspension gives excellent roll stiffness because the supporting springs are not also used to control articulation- that is left to separate blades and hinge-type joints. The height control valve reduces air pressure, softening the springs, when the vehicle is unloaded. Front axles carry a more constant weight and therefore benefit less from the ability of air suspension to adjust for weight. Air springs are so flexible that they tend not to be subjected to fatigue. Also, the air springs are not stressed if suspension parts begin to lose their freedom of operation due to imperfect maintenance.
- A truck with air suspension repeatedly exhibits shock breakage. All of these are items that should be checked EXCEPT: A. Check the part numbers of the shocks and make sure they are correct for the vehicle. B. Check the function of the ride height control valve.
C. Check the torque of the shock mounting bolts. D. Check to make sure the vehicle's tire pressures are not excessively high. - correct answer-26. The correct answer is D. Though high tire pressure might make the vehicle ride harshly, they are not known to create sufficient stress on the shocks to break them. Misapplied shocks might break due to inadequate travel or insufficient capacity to keep the suspension system operating in a stable manner. The ride height control valve should be checked because an incorrect ride height could cause the shock to constantly hit the upper or lower limit of its travel. Mounting bolt torque should be checked because excessive torque could pinch the shock bushings, prevent them from allowing the shock to rotate freely as necessary, and so put excessive stress on the body of the shock.
- All of the following basic principles apply to sound leaf spring suspension repair procedures EXCEPT: A. If a truck has run for a long time with a broken spring leaf, replace the entire set. B. Never retorque the nuts that fasten U-bolts because this will stretch the bolts excessively (they were stretched to their limit during initial torque, if it was properly done). C. If a single leaf in a set of long front springs breaks, replace the entire set, even if you think you've caught the problem promptly. D. Never re-use U-bolts because they stretch during normal initial torque. - correct answer-30. The correct answer is B. Two
