Deck 9: Suspension Systems

Question 1

________ refers to the lateral movement of the axle housing during turning.

A) Cornering force
B) Driving thrust
C) Braking torque
D) Deflecting force

Answer 1

A

Question 2

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.

A) Reaction force
B) Sprung mass
C) Unsprung mass
D) Weightless area

Answer 2

C

Question 3

Preventing or reducing oscillations is called ________.

A) Reduction
B) Prevention
C) Dampening
D) Bouncing

Answer 3

C

Question 4

The coils used on the front suspension of vehicles may be evenly spaced, called ________, or unevenly spaced.

A) Spring eyes
B) Even pitch
C) Uniform pitch
D) Uniform flexibility

Question 5

________ used in vehicles store very large amounts of energy; thus, extreme caution is required when removing and installing them.

A) Coil springs
B) Coil spring insulators
C) Suspension systems
D) Shock absorbers

Question 6

In ________ axles, the axle bearing is placed on the outside of the axle housing.

A) Straight
B) Full-floating
C) Dead
D) Semifloating

Question 7

In the ________ axle, the axle bearing is placed between the axle and the axle housing.

A) Straight
B) Full-floating
C) Dead
D) Semifloating

Question 8

A ________ not only holds the vehicle's wheels in position, but it also drives them.

A) Compliance bushing
B) Dead axle
C) Live axle
D) Strut rod

Question 9

The hydraulic shock absorber and the hydraulic strut provide their ________ action by transferring oil under pressure through valves in the piston, which restrict the oil flow.

A) Resistance
B) Dampening
C) Pressure
D) Absorption

Question 10

The ________ (beam axle) provides a simple means of mounting the hub and wheel units.

A) MacPherson strut
B) SLA suspension
C) Independent axle
D) Solid axle

Question 11

The ________ suspension system uses either a coil spring or torsion bar connected to one of the control arms to support the weight of the vehicle.

A) MIL
B) DTC
C) SLA
D) MacPherson

Question 12

The coil spring can be mounted on the _________.

A) Rear shock
B) Upper control arm
C) Both A and B
D) Neither A nor B

Question 13

In ________ vehicle suspensions, the coil spring is mounted between the axle housing and the vehicle body.

A) Rigid-axle leaf-spring
B) Rigid nondrive axle
C) Rigid-axle coil-spring
D) None of the above

Question 14

A(n) ________ adjustable-rate shock absorber has a manual, external damper rate adjustment.

A) Magnetic
B) Automatic
C) Electronic
D) Manual

Question 15

The ________ consists of a flexible rubber bladder, which seals the outside of the upper and lower halves of the shock absorber.

A) Passageway
B) Piston
C) Rubber spring
D) Air spring

Question 16

All of the following are true, EXCEPT:

A) driver complaints of a bouncy ride, poor steering control, and weird noises when going over bumps indicate problems in the suspension system.
B) regular inspections of each suspension system component is helpful in identifying wear before it causes big problems.
C) every 75,000 miles is a good interval for regular steering system inspections.
D) even if all the suspension and steering system components are in good condition they need to be aligned with each other and the vehicle centerline to function properly.

Question 17

Coil springs are available in all of the following designs, EXCEPT:

A) variable pitch spring.
B) uniform pitch spring.
C) constant rate spring.
D) random rate spring.

Question 18

All of the following are true about multileaf springs, EXCEPT:

A) they use rebound clips to keep the leaves in alignment.
B) they have a main leaf with spring eyes rolled at each end for connection to the frame.
C) they are held together with a center bolt.
D) they are best for vehicles carrying light loads.

Question 19

Technician A says both live axles and dead axles can support the weight of the vehicle. Technician B says only live axles can support the weight of the vehicle and propel the vehicle also. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 20

Technician A says that in full-floating axles, the axle shaft supports the weight of the vehicle. Technician B says that in semi-floating axles, the axle shaft supports the weight of the vehicle. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 21

Technician A says a shock absorber dampens spring oscillation. Technician B says there is oil in the shock that heats up as it absorbs the energy of the motion. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 22

Some shock absorbers:

A) use hydrogen gas to provide cushioning.
B) use pressurized nitrogen gas to reduce aeration of the hydraulic fluid.
C) use argon gas to cool the fluid.
D) use inert gas to aerate the hydraulic fluid to provide more cushioning.

Question 23

Technician A says a control arm can be formed in a wishbone design. Technician B says some control arms can be formed in a flexible design referred to as fore-arms. Who is correct?

A) Technician A
B) Technician B
C) Both Technician A and Technician B
D) Neither Technician A nor Technician B

Question 24

All of the following are true about control arms, EXCEPT:

A) they come in several designs, such as wishbone and single-point control arms.
B) some designs require rods or struts to work with the control arm.
C) some designs include transverse and trailing control arms.
D) controls arms are classified as non load-bearing suspension parts.

Question 25

Which of the four parts listed below is not an example of an elastic part in the suspension system?

A) Coil springs
B) Leaf springs
C) Control arms
D) Torsion bars

Question 26

Which of the following can be forged as one piece, and can be referred to as a steering knuckle?

A) Steering arm
B) Stub axle knuckle
C) Stub-axle carrier
D) All of the answers listed

Question 27

All of the following are true about electronic adjustable-rate shock absorbers, EXCEPT:

A) they are part of the electronic ride-control system that allows the driver to select the suspension mode.
B) typical modes include sport, touring, or automatic,
C) the shocks have hydraulically controlled valves.
D) they can be controlled by the PCM in the most advanced electronic ride control designs.

Question 28

Unsprung mass is all these EXCEPT:

A) wheels.
B) axles.
C) frame.
D) outboard brake assemblies.

Question 29

The _______ connect(s) the wheels to the suspension and steering system.

A) Pitman arm
B) Inner tie rods
C) Steering knuckle
D) Idler arm

Question 30

What type of shock is the most common?

A) Gas pressurized
B) Twin-tube type
C) Air shock
D) None of the above

Question 31

Tech A says all ball joints are loaded. Tech B says on a short/long-arm suspension system, the upper ball joint is normally a follower ball joint. Who is correct?

A) Tech A
B) Tech B
C) Both Techs A and B
D) Neither Tech A nor B

Question 32

What type of spring is mounted on a strut suspension system?

A) Leaf spring
B) Coil spring
C) Torsion bar
D) None of the above

Question 33

Today the most common design for the construction of passenger vehicle bodies is which of these?

A) Full frame construction
B) Partial frame construction
C) Unibody construction
D) None of the above

Question 34

Which of the following shock absorbers is also called as self-leveling?

A) Automatic load-adjustable shock absorber
B) Electronic adjustable-rate shock absorber
C) Manual adjustable-rate shock absorbers
D) Gas-pressurized shock absorbers

Question 35

Technician A says that the unibody construction is the most common design for passenger vehicles today. Technician B says that the full frame construction is commonly used on light-duty trucks and SUVs. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 36

A __________ design uses sheet metal to give a vehicle structure support and rigidity.

A) unibody
B) full frame
C) perimeter frame
D) none of the above

Question 37

Most FWD vehicles use a removable __________ that is bolted to the unibody to support the engine and transaxle along with the front suspension.

A) crumple zone
B) complete heavy metal frame
C) subframe
D) unibody

Question 38

Technician A says that crumple zones are built into the structure of a full frame vehicle. Technician B says that crumple zones are built into a unibody vehicle to absorb energy from a collision. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 39

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?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 40

A(n) ________ suspension system acts independently of the driver, to fully control the actions and responses of each individual wheel while the vehicle is being driven.

A) Adaptive
B) Semi-active
C) Active
D) Passive