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WorksheetsSuspension theory
Total questions: 62
Worksheet time: 35mins
When a vehicle turns itself when a vehicle hits a bump, This is called?
torque steering
independent suspension
bump steer
drifting
An anti- roll bar is also known as :
a control arm
a sway bar
torsion bar
trailing arm
All of these are types of suspension strings EXCEPT :
coil spring
leaf spring
return spring
torsion bar
When doing a simple check of shocks, a technician should:
push the car forward
bounce the car
hit speed bumps going fast
puch the car backward
A failed leaf spring will :
be bent
be cracked
sag
all of the above
On a SLA suspension, The lower control arm will be :
shorter
longer
weaker
stronger
This component absorbs bumps in the road to help prevent driver feel.
rotor
leaf spring
shock
sway bar
This is also known as a MacPherson type component:
Strut
Shock
Leaf spring
coil spring
true of false : A technician should always replace struts in pairs?
True
False
A _______________ has a large amount of energy when it is compressed. So much care should be taken during disassembly.
insulator
coil spring
shock
control arm
What is the purpose the Control Arm Bushings between the frame and control arm?
To act as a bearing allowing the arm to pivot up and down
To increase road noise and vibrations
To add a little more suspension to the system
To allow the steering knuckle to pivot
Why are ball joints typically found only on the front suspension system?
Ball Joints are needed to allow the front wheels to turn
To save cost
Ball Joints are a pivot between the frame and control arm
Ball joints can be found on the rear suspension system if the car has 4 wheel steering.
Having a control arm in the suspension systems makes it a _____________.
Dependent Suspension System
Independent Suspension System
Which of the following would best describe the ride of a vehicle with no or worn shock absorbers?
Bouncy
Stiff
Rigid
Soft
Besides poor ride quality what do you think would be a sign of a worn shock?
Leaking Fluid
More road noise
Alignment change
Stiffer ride quality
Which of the following body movements does the Stabilizer Bar (Sway Bar) try to prevent?
Body Dive
Body Roll (Sway)
Body Squat
By looking at the last image what is the main difference between SLA and MacPherson?
All of these act as common indicators for the problems in the suspension systems except:
a bouncy ride
a reduction in steering control
noises when going over a bump
improper transmission shifting
The components that are part of the sprung weight of a vehicle are:
axles
brakes
steering parts are not supported by springs
suspension parts supported by springs
The suspension system performs all of the following functions except:
absorbing the large road forces generated while driving on non-perfect roads
holding the wheels and tires in the proper orientation
monitoring the tread wear of each tire
supporting the weight of the chassis, drivetrain, passenger compartment, occupants, and any additional load
The movement around an imaginary line drawn down the center of the vehicle from front to back is called:
yaw
roll
pitch
rock
Which of the following dampen spring oscillations by forcing oil through small holes in a piston?
Springs
Shock Absorbers
Control Arms
Axles
Tech A says that one purpose of the suspension system is to keep the tires in contact with the road. Tech B says that the heavier the weight of the unsprung components, the smaller the reaction force they will generate. Who is correct?
Tech A
Tech B
Both A and B
Neither A nor B
A ________ bushing allows the suspension unit or component to comply with a controlled amount of movement in the direction of the void.
Select one:
Control arm
Rubber-bonded
Spring shackle
Compliance
The ________ is all the parts of the vehicle that are not supported by springs, including the components that follow the road contours, such as wheels, tires, axles, and outboard brake assemblies.
Select one:
Reaction force
Sprung mass
Unsprung mass
Weightless area
Vehicle ride and handling can be improved by keeping the unsprung mass as high as possible.
Select one:
True
False
The progressive rate spring provides a softer ride when the vehicle is lightly loaded.
Select one:
True
False
An unloaded ball joint supports the weight of the vehicle.
Select one:
True
False
The nonindependent, solid axle system is fairly expensive and complicated.
Select one:
True
False
In a solid axle suspension, when one wheel goes over a bump, the other wheel tilts.
Select one:
True
False
The ________ axle is one that does not transmit drive to the wheel, acting only to support it.
Select one:
Dead
Straight
Full-floating
Semi-floating
Rubber ________ and ________ stops are used to prevent direct metal-to-metal contact between the control arms and the frame if the suspension should reach its maximum limit of travel.
Select one:
Pivot; jounce
Jounce; rebound
Rebound; pivot
Pins; jounce
What type of spring is mounted on a strut suspension system?
Select one:
Leaf spring
Coil spring
Torsion bar
None of the above
The front wheels of a vehicle can have a different type of suspension system than the rear wheels.
Select one:
True
False
Tech A states that the main function of the rear suspension system is to keep the rear tires in contact with the road and aligned with the front tires. Tech B states that all-wheel drive rear suspension systems are very simple in construction and design. Who is correct?
Select one:
Tech A
Tech B
Both A and B
Neither A nor B
Tech A says on some independent rear axles, the half-shafts are the upper link of the suspension. Tech B says a rear independent suspension may have upper and lower control arms. Who is correct?
Select one:
Tech A
Tech B
Both Techs A and B
Neither Tech A nor B
In ________ vehicle suspensions, the coil spring is mounted between the axle housing and the vehicle body.
Select one:
Rigid-axle leaf-spring
Rigid non-drive axle
Rigid-axle coil-spring
None of the above
Which of the following do the sensors in an active suspension system NOT monitor?
Select one:
Pitch
Suspension height
Tire pressure
Vertical and horizontal acceleration
On some vehicles, adaptive air suspension is activated when the door is open and the key is turned on.
Select one:
True
False
Tech A states that adaptive air suspension systems are more sophisticated than active systems. Tech B states that adaptive air suspension systems can only change the dampening effect but cannot actively raise or lower the wheel. Who is correct?
Select one:
Tech A
Tech B
Both A and B
Neither A nor B
If the adaptive air suspension control system determines that the vehicle's ride height is too ______, it will command that air be added to the appropriate adaptive shock absorbers.
Select one:
High
Low
Fast
Slow
The movement around an imaginary line drawn down the center of the vehicle from front to back is called:
Select one:
yaw.
roll.
pitch.
rock.
One of the main purposes of a car suspension is to maximise the friction between
The tires and the road surface
The engine and the transmission
The wheels and the axle
The steering wheel and the steering column
A bump, or imperfection, on the roadway causes the vehicle's wheel to move up and down perpendicular to the road surface. What is this motion called?
Vertical Acceleration
Vibration
Oscillation
Lateral acceleration
Match the types of springs used in automotive suspension systems
Leaf Spring
Coil Spring
Torsion Bar
Air Spring
Rubber Spring
The term that describes the vehicle's ability to absorb road shock from the passenger compartment is
Road Isolation
Road Holding
Acceleration Control
Cornering Efficiency
Identify this component
Control arm
Sway bar
Steering knuckle
Strut Fork
A ___________ has a large amount of energy when it is compressed. So much care should be taken during disassembly.
Insulator
Coil spring
Shock
Control arm
All modern shock absorbers are (a) the faster the suspension moves, the more (b) the shock absorber provides.
Hydro Gas uses a capsule of ______ as its springing medium
Nitrogen
Carbon dioxide
Helium
Propane
The mass between the road and the suspension springs is ________
Unsprung Mass
Axle Weight
Wheel Mass
Sprung Mass
Identify the types of available Independent Suspensions
Platform Suspension
Fishbone Suspension
Vertical Guide Suspension
Trailing Link Suspension
Swinging Half Axles Suspension
A disadvantage of a solid front axle on a vehicle is_________ .
the wheels cannot be turned
lack of ride quality
poor load capacity
all of these
Two technicians are discussing suspension bushings. Technician A says that replacing control arm bushings usually requires special tools. Technician B says using high-performance urethane bushings may cause excessive noise to be transferred to the passenger compartment. Which technician is correct?
Tech A
Tech B
Both Tech A and Tech B
Nether Tech A nor Tech B
What should the technician do when replacing stabilizer bar links?
The stabilizer bar should be removed from the vehicle before replacing the links
The links can be replaced individually, yet the manufacturer often recommends that the links at both ends and be replaced together
The stabilizer bar must be compressed using a special tool before removing or installing stabilizer bar links
Both b and c are correct
Unusual noise during a test-drive can be caused by___________ .
defective wheel bearings or stabilizer bar links
defective or worn control arm bushings or ball joints
worn or defective CV joints
all of the above
A vehicle is equipped with a SLA front suspension. What do the letters mean?
Single long arm
Side-lateral angle
short-long arm
solid link assembly
A noise and a pull toward one side during braking is a common symptom of a worn or defective_____________
shock absorber
Strut rod bushing
stabilizer bar link
track rod bushing
Two technicians are discussing non-indicator-type ball joint inspection. Technician A says that the vehicle should be on the ground with the ball joints loaded, then checked for freeplay. Technician B says that the ball joints should be unloaded before checking for freeplay. Which technician is correct?
Tech A
Tech B
Both Tech A and Tech B
Neither Tech A nor Tech B
Most manufacturers specify a maximum axial play for ball joints of about________ .
0.003 inch (0.076 mm)
0.010 inch (0.25 mm)
0.030 inch (0.76 mm)
0.050 inch (1.27 mm)
A light film of oil is observed on the upper area of a shock absorber. Technician A says that this condition should be considered normal. Technician B says that a rod seal may bleed fluid during cold weather, causing the oil film. Which technician is correct?
Tech A
Tech B
Both Tech A and Tech B
Neither Tech A nor Tech B
Before the strut insert can be removed from a typical MacPherson strut assembly, which operation is necessary to prevent possible personal injury?
The brake caliper and/or brake hose should be removed from the strut housing.
The coil spring should be compressed
The upper strut mounting bolts should be removed
The lower attaching bolts should be removed
