Tires, Wheels and Hubs
Steering
Frame and Suspension
100

What is the maximum allowable runout on a cast spoke wheel?

What is 1/8th of an inch.

100

What is camber?

What is the outward or inward angle of the wheel.

100

Why must a truck not be over loaded?

It will cause damage to the frame and suspension, as well as other components.

200

On a hub piloted wheel, what must be done to the nuts before installation?

What is oil the flanges.

200

What connects the Pitman Arm to the Steering Control Arm?

What is the Drag Link.

200

What attaches the leaf spring to the front spring hanger?

What is a pin.

300

What type of drive axle has an inner and outer nut?

What is stud piloted.

300

What is used to retain a straight Kingpin in a steering knuckle assembly?

What is a Draw Key.

300

What is the most common frame on a class 8 truck?

What is C channel frames.

400

What must be done when a unitized hub has been damaged or worn beyond specifications? 

What is replace the hub assembly.

400

Where should you see the grease when greasing a new kingpin assembly?

What is above and below the axle eye.

400

What reduces the bouncing in the front end of a truck?

What is the shock absorbers.

500

On a 12R 24.5 - .75 tire, what does the - .75 stand for?

What is Aspect Ratio.

500

What tool should be used to check the kingpin freeplay?

What is a dial indicator.

500

Why shouldn't aluminum parts directly contact the steel frame or suspension?

Because Galvanic Corrosion may occur. 
600

What must you do before removing a wheel assembly from a truck?

What is remove the air from the tires.

600

How is are the ends Tie Rod Crosstube threaded?

What is left hand thread on one side right hand on the other.

600

What does RBM mean when referring to frames or leaf springs?

What is Resisting Bending Movement.

700

What is the last step when using the TMC method of adjusting Drive Axle wheel bearings?

What is torque the outer nut to 350 lbs.

700

What is the typical peak pressure of the hydraulic steering assist system on a highway truck?

What is around 2000 PSI

700

When a highway truck is fully loaded, what is are the ideal toe-in and camber specifications?

The ideal end goal is for a loaded truck to sit at 0 toe in and camber.

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