Download Suspension and Steering Exam: SOS Mechanic Certification and more Quizzes Mechanical Engineering in PDF only on Docsity!
SOS MECHANIC CERTIFICATION- SUSPENSION &
STEERING EXAM WITH 100% CORRECT ANSWERS
"A Double Wishbone suspension system - CORRECT ANSWER=> has upper and lower control arms"
"Name the Tread Wear and how it is caused - CORRECT ANSWER=> Feathered Edges: Caused by
improper toe and results in outer tread wear on ONE SIDE of the tire"
"Name the Tread Wear and how it is caused - CORRECT ANSWER=> Underinflation: Caused by driving
on underinflated tires for long periods of time and results in outside tread wear on both sides of the tire"
"Name the Tread Wear and how it is caused - CORRECT ANSWER=> Overinflation: Caused by driving on
overinflated tires for long periods of tire and results in center tread wear"
"Name the Tread Wear and how it is caused - CORRECT ANSWER=> Camber Wear: Caused by improper
camber and wears the tread on half of the tire"
"Name the Tread Wear and how it is caused - CORRECT ANSWER=> Chopped Wear: Caused by lack of
rotation or unbalanced tires and wears tread in various spots creating a chopped tread"
"Name the Tread Wear and how it is caused - CORRECT ANSWER=> Cupped Wear: Caused by excessive
wheel jounce from worn suspension and creates bald spots on the tread"
"This would Increase Caster - CORRECT ANSWER=> How would adding/subtracting shims as performed
in the picture effect the alignment (Note the location of the front of the vehicle)"
"This would Decrease Caster - CORRECT ANSWER=> How would adding/subtracting shims as
performed in the picture effect the alignment (Note the location of the front of the vehicle)"
"This would Increase Camber - CORRECT ANSWER=> How would adding/subtracting shims as
performed in the picture effect the alignment (Note the location of the front of the vehicle)"
"This would Decrease Camber - CORRECT ANSWER=> How would adding/subtracting shims as
performed in the picture effect the alignment (Note the location of the front of the vehicle)"
"This movement would Increase Caster - CORRECT ANSWER=> How would moving toward B effect the
alignment?"
"This movement would Decrease Camber - CORRECT ANSWER=> How would moving toward C effect
the alignment?"
"This movement would Decrease Caster - CORRECT ANSWER=> How would moving toward A effect the
alignment?"
"This movement would Increase Camber - CORRECT ANSWER=> How would moving toward D effect
the alignment?" "Tighten the castle nut slightly in order to line the slot on the castle nut up with the hole in order to
install the castle nut. Never loosen it below torque specification - CORRECT ANSWER=> After
tightening a castle nut on a ball joint to the torque specification you find the hole for the cotter pin in the stud does not line up with a slot on the castle nut and you are unable to install the cotter pin.... Should you tighten the nut slightly to line up the slot with the hole or loosen it slightly to line up the slot with the hole? "you will see 2 similar answers clue is a number 45 just pick the longer answer"" "How to adjust toe on rack and pinion suspension, thus changing the length of the steering linkage -
CORRECT ANSWER=> Loosen the lock nut and turn the inner tierod"
"Loosen the locking sleeve nuts and rotate the adjusting sleeve, thus changing the length of the steering
linkage - CORRECT ANSWER=> How to adjust toe on a parallelogram system"
"Which of the following would be a typical automobile front end camber setting? - CORRECT
ANSWER=> -3 degrees +/- 2 1/4 degrees its not the correct answer"
"A mechanic finds that a front tire is worn on the inside of the tread only. The mechanic checks the air
pressure and finds it correct. What is causing this problem? - CORRECT ANSWER=> The camber is set
too negative"
"A car will pull to: - CORRECT ANSWER=> the side with the most positive (+) camber"
"One front tires shows spotty or isolated cupping and worn spots. What is the most likely cause of this
problem? - CORRECT ANSWER=> An out-of-balance tire."
"Before you remove a brake rotor from a hub, you should: - CORRECT ANSWER=> mark the position of
the rotor" "The front wheels shimmy or bounce above 40mpg, even on a smooth, straight road. The likely cause of
this problem is: - CORRECT ANSWER=> Tires out of balance"
"While replacing a ball joint, you notice that the tapered hole in the steering knuckle is oval shaped.
What should you do about this? - CORRECT ANSWER=> Inform the customer that the knuckle should
be replaced."
"Which of the following is correct statements about the effects of the imbalance? - CORRECT
ANSWER=> Static imbalance will cause wheel tramp"
"Which of these is not a possible cause for an increase in steering effort? - CORRECT ANSWER=> Worn
ball joints"
"Which of these correctly states the purpose of the pop rivet found in some strut top plates? - CORRECT
ANSWER=> The rivet secures the plate I position to maintain camber"
"A car pulls to the left, which of these could cause the problem? - CORRECT ANSWER=> Left front
wheel has too much negative caster"
"A tire wobbles from side to side, which of these could cause this problem? - CORRECT ANSWER=>
Lateral runout" "Which of these is NOT a correct method for adjusting tapered roller-type front wheel bearings on a
RWD vehicle: - CORRECT ANSWER=> Tighten the adjusting nut until the wheel cannot be turned, then
loosen it until the wheel can rotate" "Which of these is a common way to adjust camber on a vehicle equipped with a strut suspension
system? - CORRECT ANSWER=> Turn an eccentric cam bolt at the base of the strut"
"Which of the following is an effective way to check for a bent strut? - CORRECT ANSWER=> Compare
the loaded and unloaded camber readings of the two front wheels"
"Toe-In - CORRECT ANSWER=> Define"
"Toe-Out - CORRECT ANSWER=> Define"
"Positive Camber - CORRECT ANSWER=> Define"
"Negative Camber - CORRECT ANSWER=> Define"
"Positive Caster - CORRECT ANSWER=> Define"
"Negative Caster - CORRECT ANSWER=> Define"
"A MacPherson suspension system - CORRECT ANSWER=> has no upper control arm"
"An imaginary line that is drawn perpendicular from the centerline of the rear axle, down the centerline
of the vehicle - CORRECT ANSWER=> What is the thrust angle?"
"An out-of-position axle or incorrect toe setting - CORRECT ANSWER=> What is the cause of an off-set
thrust angle?"
"Diagonal tire wear, pulling or drifting while driving and an off-set steering wheel - CORRECT
ANSWER=> What is the effect of an off-set thrust angle?"
"During low speed operation - CORRECT ANSWER=> When does variable assist power steering provide
maximum pressure?"
"During high speed operations - CORRECT ANSWER=> When does variable assist power steering
provide minimum pressure?"
"Is Caster adjustable on all vehicles? - CORRECT ANSWER=> Caster is NOT adjustable on some vehicle"
"What are shim adjusted control arms used on? - CORRECT ANSWER=> Typically used on older RWD
vehicles that contain front SLA suspension"
"In what sequence should an alignment be performed? - CORRECT ANSWER=> Caster, camber, toe (in
that order)"
"What is not a tire wearing angle? - CORRECT ANSWER=> Caster"
"What causes a steering wheel to return to center? - CORRECT ANSWER=> A normal positive caster
angle"
"How does Caster effect which way a vehicle pulls - CORRECT ANSWER=> Vehicles will pull to the side
with more negative caster"
"How does Camber effect which way a vehicle pulls - CORRECT ANSWER=> A vehicle will pull to the
side with more positive camber"
"What is a typical camber angle - CORRECT ANSWER=> Close to zero to provide maximum tire contact
with the road"
"How would you compensate toe for road crown? - CORRECT ANSWER=> Left side tire with slight toe
out and right side tire with toe in"
“Bleeding a power steering unit is generally done by - CORRECT ANSWER=> turning the steering wheel
left and right repeatedly" "After rounding a turn, the front wheels do not return to the straight ahead position in a normal way.
What adjustment is most likely to be out of specifications? - CORRECT ANSWER=> Caster"
