Deck 63: Suspension Fundamentals

Question 1

3)Torsion bars are made of heat-treated alloy steel with a hex head or splines at each end.

Answer 1

True

Question 2

4)Some vehicles made since the early 1980s have used composite springs made of reinforced fiberglass or graphite-reinforced plastic.

Answer 2

True

Question 3

18)Some trucks have one or more ____________________ leaves that do not work until the other leaves have deflected enough under load to allow them to come into contact.

Answer 3

overload

Question 4

2)Springs support the load of the vehicle, absorbing the up-and-down motion of the wheels that would normally be transmitted directly to the frame and body.

Question 5

17)A(n) ____________________ spring is made of a long, flat strip of spring steel or composite fiber rolled at both ends to accept a pressed-fit rubber insulating bushing.

Question 6

13)All of the following statements are true EXCEPT:

A) gas shocks were invented to control aeration, cavitation, and foaming of the hydraulic fluid.
B) pressurizing the oil column in the shock absorber keeps the bubbles in the solution.
C) some gas shocks have a pressurized gas-filled cell.
D) twin-tube gas shocks are pressurized with nitrogen gas at 30-90 psi, depending on the manufacturer and the damping force desired.

Question 7

12)The term MOST-Likely used to describe the event that occurs when hydraulic fluid becomes mixed with air is:

A) aeration
B) squat
C) active suspension
D) gas shock

Question 8

16)____________________ is the weight that is supported by the car springs.

Question 9

10)All of the following statements are true EXCEPT:

A) double wishbone suspensions have improved directional stability and steering control.
B) a Macpherson strut has an upper control arm and upper ball joint.
C) double wishbone suspensions react to body roll more easily than any other type of independent suspension.
D) multilink suspensions allow the designer more options in suspension tuning.

Question 10

11)While having a discussion, Technician A says that shock absorbers are responsible for absorbing a good deal of road shock. Technician B says that the tires are a vehicle's primary shock absorbers. Who is correct?

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

Question 11

1)A rear subframe includes the engine, transaxle, and steering/suspension system.

Question 12

8)Rather than compressing, a(n) ____ is a straight rod that twists.

A) ball joint
B) shock absorber
C) shackle
D) torsion bar spring

Question 13

20)A(n) ____________________ shock usually has the reserve chamber in the same column as the working piston.

Question 14

14)Normal suspension systems are MOST-Likely referred to as:

A) shackles
B) passive systems
C) load carriers
D) adaptive systems

Question 15

5)Independent suspension systems have more unsprung weight than rigid axle suspensions.

Question 16

15)Which of the following statements is LEAST-Likely true?

A) During hard acceleration, the front of the vehicle lifts and the rear lowers. This is called squat.
B) An active suspension system works with sensors, a computer, and activators to solve problems.
C) An active suspension requires conventional shock absorbers or springs.
D) Sensors provide the computer with necessary information regarding extension and compression of each actuator and how heavily the vehicle is loaded.

Question 17

6)Which of the following is LEAST-Likely a component of the suspension system?

A) Springs
B) Shock absorbers
C) Bearings
D) Control arms

Question 18

9)While having a discussion, Technician A says that SLA suspensions maintain precise wheel position under all driving conditions. Technician B says that they can have a large amount of vertical travel without scrub. Who is correct?

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

Question 19

7)The ____ is the most common spring type used in passenger cars.

A) coil spring
B) jounce
C) leaf spring
D) wishbone

Question 20

19)A(n) ____________________ allows motion in two directions, moving with the same up-and-down motion as the bushings on the other end of the control arm.

Question 21

24)What is the purpose of height sensors?

Question 22

23)What is the purpose of a stabilizer bar?

Question 23

25)What is the purpose of speed sensors?

Question 24

21)Why are shock absorbers referred to as double-acting?

Question 25

22)What is the purpose of compression damping?