Chapter 4 Common Suspension System Components

An A-arm type control arm is attached to a vehicles's body at how many places? _______ At how many places is it attached to the spindle? ________

2, 1

Some torsion bars are: (A) adjustable (B) used on the rear (C) really a kind of leaf spring (D) made of fiberglass

A

Define Spring Rate.

A measure of the amount a spring compresses under a given load & time it takes to do so

Spring shackles are used with __________. (A) coil springs (B) leaf springs (C) torsion bars (D) none of the above

B

Strut rods keep the control arms from moving ____________. (A) up and down (B) backward and forward (C) in and out (D) none of the above

B

Transverse leaf springs are being discussed. Technician A says transverse leaf springs are sometimes used on front-wheel drive vehicles. Technician B says transverse leaf springs are often made of a material other than metal. Who is right?

Both A and B

A control arm connected to the frame at two points does not need a ___________. (A) stabilizer bar (B) shock absorber (C) strut rod (D) spring

C

How is a ball joint lubricated if it has no grease fitting? (A) by lifting up the seal and squirting in grease (B) using a needle to puncture the seal (C) drilling a small hole and adding grease by hand (D) none of the above

D

Describe the purpose of a leaf spring shackle.

It allows the leaf spring to change lengths over bumps

Springs convert sharp jolts into soft ___________.

Oscillations

What two factors determine the Spring Rate?

Size, shape

What three ways can a ball joint be attached to the control?

Threaded, pressed, rivets

A driving knuckle has a center hole that allows the ____________ to pass through.

axle

Gas filled shock absorbers tend to ____________ less than conventional shock absorbers.

balance

In an air spring system, air operated ___________ are used in place of coil springs or leaf springs.

bellows

The ball joint connects the ________ ____________ to the _________ ___________.

control arm, steering knuckle

An elastic material can be bent or stretched without being permanently _________.

deformed

All modern shock absorbers are _________ ______________.

direct acting

The gas used in air shock absorbers is usually ____________.

nitrogen

A shock absorber damps road shocks and ocillations by forcing hydraulic fluid through small ____________.

orifices

A transverse spring is mounted ____________ to the vehicle's centerline.

perpendicular

Adding air to an air shock increases pressure on the _________ ___________, causing it to raise the vehicle.

piston rod

The body and control arm depressions used to hold coil springs in place are called spring _____________.

pockets

Torsion bar adjustments change vehicle ____________ _____________.

ride height

Shock absorbers are generally mounted to the suspension and frame through ____________.

rubber bushings

A two-piece ball joint provides an extra __________ surface.

sliding

Preloading keeps the ball joint surfaces from _________ each other when the suspension moves. This reduces __________ _________ and ____________.

striking, shock loading, vibration

A stabilizer bar is sometimes called a _________ bar.

sway

A ________ bushing works by twisting.

torsion

Oscillations are a series of ________ and _________ movements that use up ___________.

up, down, energy

The steering knuckle may be called the __________ ____________.

wheel spindle