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ASE T5 Steering & Suspension Practice Test #2.
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ASE T5 Steering & Suspension PracticeTest #2
The most common type of power steering hydraulic pump used on most Class 8 trucks/
tractors equipped with power steering systems is:
A. Gear.
B. Vane.
C. Plunger.
D. Centrifugal. - ANS-Answer A is incorrect. Gear pumps are most common on large,
off-highway applications.
Answer B is correct. The two most common types are roller pumps and vane pumps.
Answer C is incorrect. Plunger is not a type of power steering pump used in truck/
tractor
applications.
Answer D is incorrect. Centrifugal is not a type of power steering pump used in truck/
tractor applications.
Technician A says to inflate mounted tires in a safety cage or using a portable lock ring
guard.
Technician B says to first mount the tire on the truck, then inflate to the proper tire
pressure.
Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - ANS-Answer A is correct. Only Technician A is correct. You must
inflate mounted tires in a safety cage or using a portable lock ring guard.
Answer B is incorrect. You do not mount the tire on the truck before inflation because an
improperly fitted rim ring could dislodge, causing injury.
Answer C is incorrect. Only Technician A is correct.
Answer D is incorrect. Technician A is correct.
While performing an inspection on a heavy-duty tractor, the technician finds the frame
rail buckled. Which of the following might be the cause for this condition?
A. Too many holes drilled in the frame
B. Extreme operating conditions
C. The wrong bolts used in a repair
,D. A vehicle collision - ANS-Answer A is incorrect. Drilling many holes in a frame will
weaken it and allow sag to take place.
Answer B is incorrect. Extreme operating conditions such as overloading can also
cause sag.
Answer C is incorrect. The wrong bolts used in a frame repair can cause sag due to a
release of the reinforcement strength of the repair.
Answer D is correct. A collision can produce the end forces on a frame that would be
required to cause a buckling upward of the frame.
Camber may be defined as:
A. The forward or rearward tilt of the kingpin at the top.
B. The tracking angle of the tires from a true straight-ahead track.
C. The inward or outward tilt of the top of the wheel when viewed from the front of the
vehicle.
D. The amount in degrees that the top of the kingpin inclines away from vertical as
viewed from the front of the vehicle. - ANS-Answer A is incorrect. The forward or
rearward tilt of the kingpin at the top is caster.
Answer B is incorrect. The tracking angle of the tires from a true straight-ahead track is
toe.
Answer C is correct. Camber is the inward or outward tilt of the top of the wheel when
viewed from the front of the vehicle.
Answer D is incorrect. The amount in degrees that the top of the king-pin inclines away
from vertical as viewed from the front of the vehicle is KPI.
A technician finds that the power steering system is overheating. This condition may be
caused by all of the following EXCEPT:
A. A loose steering shaft flex joint.
B. Underlubricated ball joints.
C. A kink or pinch in the fluid return line.
D. Blocked airflow across the heat exchanger. - ANS-Answer A is correct. A steering
shaft flex joint is the flexible connector joint between the steering shaft and the steering
gear. Being loose, the flex joint would not cause the power steerng to overheat.
Answer B is incorrect. Underlubricated ball joints in the steering joints could make the
wheels hard to turn, causing the power steering to work harder and overheat.
Answer C is incorrect. A blocked or restricted fluid return line would hinder the fluid flow
to the power steering heat exchanger, reducing its ability to dissipate the heat from the
fluid.
Answer D is incorrect. Blocked airflow across the heat exchanger would not allow
dissipation of heat from the fluid
, Suspension components are replaced on a medium-duty truck with single-air-valve rear
air suspension. Technician A says a tape measure can be used to measure from a
frame straightedge to the drive axle. Technician B says if the distance from the axle to a
fixed straightedge is different on each side of the suspension, one of the front equalizing
beam bushings may be worn. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - ANS-Answer A is incorrect. A tape measure cannot be used to
measure from a frame straightedge to the drive axle. A trammel bar should be used.
Answer B is correct. Only Technician B is correct. If the distance from one side of the
axle to a fixed straightedge is different compared to the other side, one of the front
equalizing beam bushings may be worn. Worn bushings allow the axle to shift fore and
aft and not run parallel to the frame rail.
Answer C is incorrect. Only Technician B is correct.
Answer D is incorrect. Technician B is correct.
Technician A says that the minimum and maximum air pressure going to the air bags is
controlled by the pressure protection valve. Technician B says that the minimum air
pressure in the bags should not to be less than 3 psi. Who is correct?
A. A only
B. Bonly
C. Both A and B
D. Neither A nor B - ANS-Answer A is incorrect. The minimum and maximum air
pressure going to the bags is controlled by the hand control valve, not a pressure
protection valve.
Answer B is correct. Damage to suspension components may occur if the air pressure
is below 3 psi.
Answer C is incorrect. Only Technician B is correct.
Answer D is incorrect. Technician B is correct.
Excessive tire wear is noted on a heavy-duty tractor. Which of the following suspension
components is the LEAST LIKELY cause?
A. Bent spindle
B. Improper tie rod setting
C. Center cross tube bushing
D. A preloaded axle wheel bearing - ANS-Answer A is incorrect. A bent spindle would
cause inside or outside tread wear.
Answer B is incorrect. An improper tie rod setting will affect toe, causing tire wear.
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