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ASE A4 PRACTICE EXAM {} WITH QUESTIONS AND VERIFIED ANSWERS
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ASE A4 PRACTICE EXAM {2024-2025} WITHQUESTIONS AND VERIFIED ANSWERS
2. A driver claims that the front end of his automobile vibrates up and down while
driving at most speeds. According to Tech A, the culprit could be excessive
front-wheel runout. According to Tech B, the culprit could be a static
out-of-balance front wheel. Who's right?
A. Tech A only.
B. Tech B alone.
C. Both A and B.
D. Neither A nor B - ANSWER C. Both Techs are correct. Too much runout or
static out of balance in the front wheels causes a vibration.
3. A vehicle experiences front wheel shake at low speeds, necessitating additional
steering effort. According to Tech A, excessive positive camber could be the
culprit. According to Tech B, an excessive amount of Positive caster could be to
blame. Who's right?
A Tech A alone.
B. Tech B alone.
C. Both A and B.
D. Neither A nor B - ANSWER B. Excessive positive caster requires more steering
effort and causes the steering wheel to return too quickly. It causes wandering at
high speeds and shuddering at low speeds.
4. All of these may cause tire wear if not within the manufacturer's specifications
EXCEPT:
A. Caster
,B. Wheel balance.
C. Toe-In
D. Camber - ANSWER A. Out-of-spec caster affects steering and handling but
does not impact tire wear. Too much toe in or out would cause the tires to wear
down quickly. Furthermore, excessive camber would result in inside or outside
shoulder wear on the tire, depending on whether the camber was too negative or
positive.
5. A car with variable assist power steering lacks power assistance in all directions.
Tech A claims the problem is with the electronic control system. According to
Tech B, the fault could be with the steering gear or the power steering pump. Who's
right?
A. Tech A only.
B. Tech B alone.
C. Both A and B.
D. Neither A nor B - ANSWER B. Although further investigation is required, Tech
B is correct. Tech A is incorrect since if a variable assist power steering system
fails, it will allow full power steering.
6. A customer complains that a vehicle wanders down a rocky route and requires
constant driver adjustment to keep straight. What may be wrong?
A. Extremely negative front caster
B. Insufficient front toe.
C. Rear or front bump steer
D. All of the above - ANSWER D. Excessive negative caster, insufficient front toe,
and front or rear bump steer may cause a vehicle to wander over a rough road.
7. While aligning a front end, a mechanic discovers that the toe out on turns
(turning radius) is more than the manufacturer's specifications, with a 2.0-degree
,differential from the left to the right side. Which, if any, of the following may be
the cause?
A. Nothing is wrong; the vehicle has a non-symmetrical steering design.
B. Bent Pitman's arm
C. bent tie rod
D. B and C both have the same answer: D. A bent pitman arm or a tie rod may
cause the toe out on turns to be out of specification. Vehicles with non-symmetrical
steering systems will have a variance from side to side, but it will never exceed the
manufacturer's specifications, and it will rarely be more than 1.5 degrees.
8. When inspecting a tire, a technician discovers that it has excessive radial (up and
down) runout. Tech A recommends rotating the tire and wheel assembly on the
mounting studs to resolve the issue. Tech B recommends rotating the tire on the
wheel assembly to try to bring the runout within specifications. Who's right?
A. Tech A only.
B. Tech B Only.
C: Both A and B
C. Neither - ANSWER B. Rotating the tire on the wheel compensates for the
wheel/tire differential (placing the highest point of the tire at the lowest point of the
wheel). Rotating the wheel assembly on the mounting studs does not affect runout.
9. Which of these specifications may change if you tweak the camber on the left
front strut?
A. Right caster.
B. Left and entire toes
C. SAI
, D) None of the above. - ANSWER B. Readjusting camber will effect both the
individual toe of the left wheel and the total toe. SAI is not adjustable, and caster is
also not adjustable on strut suspensions.
10. Too much caster on the left front wheel causes the __________.
A. Vehicle drifts to the left.
B. The left tire will wear on the outside edge.
C. Vehicle drifts to the right.
D. The left tire will wear on the inside edge. - ANSWER C. A vehicle will steer or
drift towards the side with the least degree of caster. Caster does not cause tire
wear, however high camber causes wear to the inside and outside shoulders of a
tire.
12. A pressure test is being performed on a vehicle with power steering. The
pressure readings obtained when the wheels are at the right and left stops are below
specification. The tester readings are normal when the shutdown valve is closed.
According to tech A, these results could be the result of a malfunctioning steering
gear. According to technician B, these findings could be the result of a faulty pump.
Who's right?
A. Tech A only.
B. Tech B Only.
C: Both A and B
D. Neither - ANSWER A. A faulty steering gear would result in poor readings
when the steering is at the right and left stops, but normal readings with the tester
shutdown valve closed.
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