ASE T5 Test/ 75 Questions with
Solved Correct Solutions/ Rated
A+/Verified
1. 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 - -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.
-4. 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 - -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.
-2. 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 - -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 hits a good bump. If there is
clearance between the rubber bushing and mounting bolt, or if the
rubber
bushing has worn very thin, elongated or even broken and fallen out,
the result will be a clattering noise as the motion of the suspension
repeatedly takes up the
clearance first in one direction and then in the other.
-5. The driver of a truck says that it is too hard to steer and that the
steering wheel return is too fast. Which of these is the most likely
cause?
A. too much negative caster
B. too much positive caster
C. too much negative camber
D. too much positive camber - -5. The correct answer is B. Caster action
is the most critical suspension alignment specification in terms of
affecting steering wheel return to the center. Caster
actually lifts the truck as the wheel is turned in either direction; when
the driver allows the wheel to return to center, the weight of the truck
actually forces the steering system to that position. When the caster
setting is too high, the weight of the truck exerts too much force in
centering the steering and creates the symptoms
noted.
-3. 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 - -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.
-6. 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 - -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.
-7. 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 - -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.
-8. 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 has been collapsed, the
entire column must be replaced. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - -8. The correct answer is C, both technicians are
right. Steering columns are made to be collapsible to prevent the
column from seriously impacting the
driver during a front-end collision. If an accident has occurred, and the
steering column has partially collapsed, the entire column must be
replaced.
-12. The driver of a new truck says that he feels a light tire thump.
Technician A says the cause could be an out-of-balance tire. Technician
B says the cause could be an over-inflated tire. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - -12. The correct answer is A. A tire that is out of
balance produces uneven forces in the steering system, The tire tends
to bounce up-and-down as the heavier
portion alternately goes over the top and hits the pavement. Tires that
are overinflated still produce constant forces on the steering system.
Overinflation tends to create uneven wear and may cause imprecise
steering because the full width of the tread does not contact the road
surface.
Solved Correct Solutions/ Rated
A+/Verified
1. 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 - -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.
-4. 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 - -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.
-2. 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 - -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 hits a good bump. If there is
clearance between the rubber bushing and mounting bolt, or if the
rubber
bushing has worn very thin, elongated or even broken and fallen out,
the result will be a clattering noise as the motion of the suspension
repeatedly takes up the
clearance first in one direction and then in the other.
-5. The driver of a truck says that it is too hard to steer and that the
steering wheel return is too fast. Which of these is the most likely
cause?
A. too much negative caster
B. too much positive caster
C. too much negative camber
D. too much positive camber - -5. The correct answer is B. Caster action
is the most critical suspension alignment specification in terms of
affecting steering wheel return to the center. Caster
actually lifts the truck as the wheel is turned in either direction; when
the driver allows the wheel to return to center, the weight of the truck
actually forces the steering system to that position. When the caster
setting is too high, the weight of the truck exerts too much force in
centering the steering and creates the symptoms
noted.
-3. 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 - -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.
-6. 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 - -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.
-7. 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 - -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.
-8. 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 has been collapsed, the
entire column must be replaced. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - -8. The correct answer is C, both technicians are
right. Steering columns are made to be collapsible to prevent the
column from seriously impacting the
driver during a front-end collision. If an accident has occurred, and the
steering column has partially collapsed, the entire column must be
replaced.
-12. The driver of a new truck says that he feels a light tire thump.
Technician A says the cause could be an out-of-balance tire. Technician
B says the cause could be an over-inflated tire. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - -12. The correct answer is A. A tire that is out of
balance produces uneven forces in the steering system, The tire tends
to bounce up-and-down as the heavier
portion alternately goes over the top and hits the pavement. Tires that
are overinflated still produce constant forces on the steering system.
Overinflation tends to create uneven wear and may cause imprecise
steering because the full width of the tread does not contact the road
surface.
