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Exam 6: Front Suspension Systems

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Question 21

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On a vehicle equipped with rear parallel leaf springs and a solid rear axle, the customer is complaining that the vehicle reacts erratically (it darts) during turns. What is the most likely cause of this complaint?

A) Incorrect ride height
B) Incorrect drive line angle
C) Loose rear axle U-bolts
D) Missing jounce/rebound bumpers

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Question 22

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Explain caster angle.

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Caster angle is the tilt of a line that ...

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Question 23

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The most likely cause of excessive body lean and sway while cornering is:

When measuring ball joint wear on a short-and-long arm front suspension system with the coil springs between the lower control arms and the chassis, a floor jack should be placed under the frame to lift the suspension.

A MacPherson strut front suspension requires more mounting space than a short-and-long arm front suspension.

Identify the  components  1 through  7 in the image below:   

When one front wheel strikes a road irregularity, what component helps to reduce body roll?

Types of ball joint mounting in the lower control arm include all of these EXCEPT:

Describe the differences between heavy-duty and regular-duty coil springs.

Some current vehicles have aluminum steering knuckles to reduce unsprung weight.

If a front spring is sagged, front wheel camber will move toward what direction?

Technician A says that a problem with the vehicle ride (curb) height does not affect a vehicle's alignment. Technician B says that incorrect rear (curb) ride height could be corrected by installing new springs. Who is correct?

Define camber angle.

The ball joint nut should not be backed off to install the cotter pin though the castle nut.

Technician A says that in some short-and-long arm front suspension systems, the coil springs are mounted between the lower control arm and the chassis. Technician B says that in this type of suspension system, the upper ball joints are the load-carrying ball joints. Who is correct?

A vehicle has sagged rear springs and reduced rear curb riding height. This problem results in:

Monoleaf springs may be manufactured from fiberglass.

Explain torsion bar action during wheel jounce and rebound.

The most likely cause of repeated front coil spring breakage is:

Technician A says heavy-duty and regular coil springs have the same wire diameter. Technician B says a heavy-duty coil spring has a shorter free height than a regular-duty coil spring. Who is correct?