ASE T5 LATEST 2026 MAIN FINAL PAPER QUESTIONS AND
SOLUTIONS GUARANTEE A+
✔✔10. The steering gear sector shaft preload is to be set. Technician A says the
steering wheel must be in the center position. Technician B says the drag link should be
disconnected from the pitman arm. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ✔✔10. The correct answer is C, both technicians are right. The
steering wheel must be in the center position because clearances in the box change
(they are
tightest at center) and setting preload at another position would cause binding at the
center. The drag link must be disconnected because preload is measured by turning the
steering box. It produces a very small amount of friction that must be measured with an
inch pound torque wrench and is much smaller than the friction inherent in the rest of
the steering system.
✔✔11. Which of these could cause the front tires of a truck to show a feather-edged
wear pattern?
A. a wrong toe-in setting
B. a wrong camber setting
C. a wrong caster setting
D. wrong tire pressure - ✔✔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.
✔✔15. 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 - ✔✔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.
,✔✔16. 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 - ✔✔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.
✔✔19. 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 and properly adjusted. Technician A says to check the
air brake system operating pressure and make sure it is not too high. Technician B says
to check the physical condition of all the shock absorbers as well as all the travel stops
that may be incorporated in the suspension. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ✔✔19. The correct answer is B. The shocks and travel stops are
probably not working properly. Even with a high brake air system pressure, the control
valve will shut off tight, sealing even with excessive pressure at the proper ride height.
On the other hand, if suspension travel is excessive in the downward direction, this can
allow the truck to ride at too low a height for a brief period over hard bumps. This tricks
the control valve into feeding air to the system when it is not actually needed.
✔✔17. A truck exhibits a strange combination of symptoms. The drive axles exhibit
chronic seal wear problems. At the same time, there is some evidence of irreqular drive
axle tire wear. There is no evidence of driveshaft imbalance or worn driveshaft parts.
The MOST likely cause of the problem is:
A. driver abuse of the truck by frequently popping the clutch in very low gears on a
steep upgrade
B. severe imbalance of the drive axle tires and wheels
C. worn shock absorbers on the tandem drive axle suspension system
D. worn bushings in the torque rods locating the drive axles - ✔✔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.
✔✔20. 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 - ✔✔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.
✔✔18. 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 - ✔✔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
U-bolt that exhibits a ringing sound is probably under sufficient tension to hold the stack
secure, while one that exhibits a dull thud is not tight enough.
✔✔21. A technician has been asked by a customer if he can get more even tire wear,
and thereby improve tire life, by rotating the eight tires on the tandem drive axles of his
tractor. Technician A says all the tires endure practically identical stresses and wear
patterns. Technician B says irregular wear patterns will be canceled out. Who is right?
A. Technician A only
SOLUTIONS GUARANTEE A+
✔✔10. The steering gear sector shaft preload is to be set. Technician A says the
steering wheel must be in the center position. Technician B says the drag link should be
disconnected from the pitman arm. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ✔✔10. The correct answer is C, both technicians are right. The
steering wheel must be in the center position because clearances in the box change
(they are
tightest at center) and setting preload at another position would cause binding at the
center. The drag link must be disconnected because preload is measured by turning the
steering box. It produces a very small amount of friction that must be measured with an
inch pound torque wrench and is much smaller than the friction inherent in the rest of
the steering system.
✔✔11. Which of these could cause the front tires of a truck to show a feather-edged
wear pattern?
A. a wrong toe-in setting
B. a wrong camber setting
C. a wrong caster setting
D. wrong tire pressure - ✔✔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.
✔✔15. 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 - ✔✔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.
,✔✔16. 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 - ✔✔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.
✔✔19. 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 and properly adjusted. Technician A says to check the
air brake system operating pressure and make sure it is not too high. Technician B says
to check the physical condition of all the shock absorbers as well as all the travel stops
that may be incorporated in the suspension. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - ✔✔19. The correct answer is B. The shocks and travel stops are
probably not working properly. Even with a high brake air system pressure, the control
valve will shut off tight, sealing even with excessive pressure at the proper ride height.
On the other hand, if suspension travel is excessive in the downward direction, this can
allow the truck to ride at too low a height for a brief period over hard bumps. This tricks
the control valve into feeding air to the system when it is not actually needed.
✔✔17. A truck exhibits a strange combination of symptoms. The drive axles exhibit
chronic seal wear problems. At the same time, there is some evidence of irreqular drive
axle tire wear. There is no evidence of driveshaft imbalance or worn driveshaft parts.
The MOST likely cause of the problem is:
A. driver abuse of the truck by frequently popping the clutch in very low gears on a
steep upgrade
B. severe imbalance of the drive axle tires and wheels
C. worn shock absorbers on the tandem drive axle suspension system
D. worn bushings in the torque rods locating the drive axles - ✔✔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.
✔✔20. 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 - ✔✔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.
✔✔18. 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 - ✔✔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
U-bolt that exhibits a ringing sound is probably under sufficient tension to hold the stack
secure, while one that exhibits a dull thud is not tight enough.
✔✔21. A technician has been asked by a customer if he can get more even tire wear,
and thereby improve tire life, by rotating the eight tires on the tandem drive axles of his
tractor. Technician A says all the tires endure practically identical stresses and wear
patterns. Technician B says irregular wear patterns will be canceled out. Who is right?
A. Technician A only
