Steering and Suspension

When testing a power steering system, if you test the maximum pump pressure too long:

the relief valve will weaken.

the flow will be reduced.

the oil will overheat.

there will be no ill affects.

Correct! Wrong!

What is the cause of wheel tramp?

static balance.

dynamic balance.

faulty shocks.

faulty springs.

Correct! Wrong!

The main purpose for shock absorbers is to:

provide a smooth ride.

prevent bumps from affecting the steering.

reduce spring oscillation.

prevent reverse steering.

Correct! Wrong!

When checking the king pins for wear:

move the wheel in and out at the front with the brakes applied.

move the wheel in and out the front with brakes released.

move the wheel in and out at the top with the brakes applied.

move the wheel in and out at the top with the brakes released.

Correct! Wrong!

The first adjustment when assembling a manual steering box is to:

set the bearing preload of the worm shaft.

set the bearing preload of the sector shaft.

set the worm and sector backlash.

set the total travel stops.

Correct! Wrong!

When an axle is set so that the king pin tilts toward the rear at the top, you are said to have:

negative camber.

negative caster.

positive camber.

positive caster.

Correct! Wrong!

When a wheel leans out at the top (away from the vehicle center line), you are said to have:

negative camber

negative caster

positive camber

positive caster

Correct! Wrong!

When adjusting axle stops:

the steering box should relieve when the axle stops are 1/16 to 1/8 of an inch from touching the axle stop.

the steering box should relieve 1/16 to 1/8 of an inch after the axle stops have contacted the axle stop.

the tires should come no closer than 1/4 inch to vehicle components.

the wheels should be removed.

Correct! Wrong!

Feather edging of both steering tires is caused by excessive:

camber

caster

toe

KPI

Correct! Wrong!

Excessive positive caster will cause:

overheating of tires.

tire wear on the outside edges.

tire wear on the inside edges.

road shock to be felt at the steering wheel.

Correct! Wrong!

Hard or difficult to turn steering can be caused by:

worn tie-rod ends.

worn king pins.

lack of lubricant.

excessive toe-in or toe-out.

Correct! Wrong!

A power-assist steering system in which the hydraulic assist is incorporated into the steering box gear is known as:

integral

linkage

full power

hydraulic

Correct! Wrong!

The type of power steering system that has the control valve in the drag link is:

full power

linkage

integral

hydrostatic

Correct! Wrong!

The part of the steering which acts as a pivot and allows the wheels to turn is the:

Pitman arm

drag link

king pin

sector

Correct! Wrong!

The part which synchronizes the right and left steering wheels is the:

Pitman arm

tie-rod

king pin

sector

Correct! Wrong!

The purpose of a spring shackle is to:

allow the spring to change length.

let the differential move back and forth under load.

make it easier to remove the spring.

all of the above.

Correct! Wrong!

The spring leaves may be held together by:

spot welding.

a center bolt.

shackles.

gears.

Correct! Wrong!

The inward or outward tilt of the top of the wheel from vertical is called:

caster

camber

toe

king pin inclination

Correct! Wrong!

The alignment angle that is not a tire wearing angle is:

caster

camber

toe

Ackerman

Correct! Wrong!

If the caster angle is insufficient, the machine will:

steer hard.

wander at low speed.

pull to one side.

steer normally.

Correct! Wrong!

If the camber is unequal, the machine will:

steer normally.

pull to the side with the most negative camber.

pull to the side with the most positive camber.

wander from side to side.

Correct! Wrong!

The most effective and expensive method of finding cracks in spindles is:

the hammer method.

the dye method.

the electrolysis method.

the magna flux or X-ray method.

Correct! Wrong!

Technician A says to check steering components for excessive wear, you should compress the joints with a C-clamp or large pliers. Technician B says rotating or wiggling the steering left and right should be enough to identify excessive wear or lost motion, however, some of the vehicle weight may have to be removed from the axle to safely and correctly check some steering systems. Who is correct?

Technician A

Technician B

Both A and B

Neither A nor B

Correct! Wrong!

Sagging front springs on a solid front axle will normally _____________ the caster.

increase

decrease

Correct! Wrong!

Commercial transport vehicles with radial tires should have the toe-in set at:

0" toe-in.

1/16" toe-out.

1/8" toe-in.

1/16" toe-in.

Correct! Wrong!

Most truck and equipment power steering systems are open center type hydraulics.

True

False

Correct! Wrong!

Steering axis inclination gauges (gauges that clamp onto the end of the spindle magnetically) are used to measure.

toe-in and caster.

toe-in and camber.

caster and camber.

KPI and camber.

Correct! Wrong!

The included angle is the combined angle of:

King Pin inclination and toe in.

caster and camber.

caster and King Pin inclination.

camber and King pin inclination.

Correct! Wrong!

The angle that assists in maintaining the straight ahead position of the front wheels other than caster is:

camber.

ackerman.

included angle.

king pin inclination.

Correct! Wrong!

Toe out on turns is designated into the:

drag link.

pitman arm.

steering axis.

Ackerman arms.

Correct! Wrong!

After checking for equal turns, right and left, if toe-out on turns is still incorrect the fault would be:

incorrect toe-in.

an incorrect camber angle.

a bent or incorrect Ackerman arm(s).

an incorrect caster angle.

Correct! Wrong!

The drag link connects the:

steering knuckles together.

steering gear box to the across shaft.

Pitman arm to the tie rod.

Pitman arm to the steering arm.

Correct! Wrong!

Badly worm king pins and/or bushings will cause movement towards:

negative camber.

negative caster.

positive camber.

positive caster.

Correct! Wrong!

Besides setting the stop screws for maximum turning angle, centering the steering and setting the steering box reliefs, the only other adjustments that are possible on a heavy duty truck front axle steering are:

king pin inclination and camber.

caster and camber.

ackerman and toe-in.

toe-in and caster.

Correct! Wrong!

Which of the following items would NOT cause a hard steering complaint?

frozen king pins.

excessive steering gear box bearing preload.

tire pressure too low.

defective shock absorbers.

Correct! Wrong!

When changing a worn drag link with a new one, if the length is not adjusted correctly, or the wrong length is installed, you could end up with:

hard steering.

no toe out on turns.

turning sharper one way than the other.

incorrect toe-in.

Correct! Wrong!

Correctly installed tie rod ends will have left hand thread on the drivers side.

True

False

Correct! Wrong!

Steering box pressure relieving adjustment screws should contact prior to axle stops contact.

True

False

Correct! Wrong!

When checking steering linkages for wear, the best method is to check:

tire wear.

for lost motion.

toe-in.

for lack of grease.

Correct! Wrong!

A complaint of a truck always pulling to the left might indicate:

more positive caster on the left than the right.

negative camber on the right.

faulty shock absorbers.

too much toe-in.

Correct! Wrong!

A tractor/trailer combination always pulls randomly to the left and to the right. The technician finds no apparent problems with a steering system. The next item to check would be for:

fifth wheel binding because of lack of tube.

worn shock absorbers.

fore and aft sliding fifth wheel positioning.

trailer axle(s) thrust angles.

Correct! Wrong!

Worn shaft preload is the first adjustment when assembling a manual steering box.

True

False

Correct! Wrong!

If steering box stops (rack piston end of stroke relieving pins) are out of adjustment on a power steering box, the axle stops may be damaged by the power steering.

True

False

Correct! Wrong!

How can a loose rear axle cause someone to think they have a steering problem?

because the steering whines.

because the vehicle wanders.

because the steering will shimmy.

none of the above.

Correct! Wrong!

The first thing to check when a customer complains of "lack of power assist" is:

the fluid level.

if the flow control valve stuck shut.

the pulley is loose on the power steering pump''s drive shaft.

to check tire pressure.

Correct! Wrong!

High turning effort in both directions can be caused by:

low tire pressure.

seized or tight king pins.

a loose power steering pump belt.

all of the above.

Correct! Wrong!

If the caster angle is insufficient one result could be:

vehicle wandering.

tire wear.

wheel tramp.

all of the above.

Correct! Wrong!

When caster adjustment is required on a solid axle:

the axle must be bent.

a tapered caster shim is placed between the leaf spring and axle.

spring shackles must be adjusted.

any one of the above.

Correct! Wrong!

If a complaint of wander is encountered, the problem could be:

tire balance.

toe-out on turns incorrect.

toe-in incorrect.

faulty shock absorbers.

Correct! Wrong!

When removing a pitman arm from a sector shaft, it is recommend that you use a:

proper puller.

hammer to strike the shaft end.

torch to heat the pitman arm.

chisel to spread the clamp.

Correct! Wrong!

When testing a power steering system, if you test the maximum pump pressure too long:

What is the cause of wheel tramp?

The main purpose for shock absorbers is to:

When checking the king pins for wear:

The first adjustment when assembling a manual steering box is to:

When an axle is set so that the king pin tilts toward the rear at the top, you are said to have:

When a wheel leans out at the top (away from the vehicle center line), you are said to have:

When adjusting axle stops:

Feather edging of both steering tires is caused by excessive:

Excessive positive caster will cause:

Hard or difficult to turn steering can be caused by:

A power-assist steering system in which the hydraulic assist is incorporated into the steering box gear is known as:

The type of power steering system that has the control valve in the drag link is:

The part of the steering which acts as a pivot and allows the wheels to turn is the:

The part which synchronizes the right and left steering wheels is the:

The purpose of a spring shackle is to:

The spring leaves may be held together by:

The inward or outward tilt of the top of the wheel from vertical is called:

The alignment angle that is not a tire wearing angle is:

If the caster angle is insufficient, the machine will:

If the camber is unequal, the machine will:

The most effective and expensive method of finding cracks in spindles is:

Sagging front springs on a solid front axle will normally _____________ the caster.

Commercial transport vehicles with radial tires should have the toe-in set at:

Most truck and equipment power steering systems are open center type hydraulics.

Steering axis inclination gauges (gauges that clamp onto the end of the spindle magnetically) are used to measure.

The included angle is the combined angle of:

The angle that assists in maintaining the straight ahead position of the front wheels other than caster is:

Toe out on turns is designated into the:

After checking for equal turns, right and left, if toe-out on turns is still incorrect the fault would be:

The drag link connects the:

Badly worm king pins and/or bushings will cause movement towards:

Besides setting the stop screws for maximum turning angle, centering the steering and setting the steering box reliefs, the only other adjustments that are possible on a heavy duty truck front axle steering are:

Which of the following items would NOT cause a hard steering complaint?

When changing a worn drag link with a new one, if the length is not adjusted correctly, or the wrong length is installed, you could end up with:

Correctly installed tie rod ends will have left hand thread on the drivers side.

Steering box pressure relieving adjustment screws should contact prior to axle stops contact.

When checking steering linkages for wear, the best method is to check:

A complaint of a truck always pulling to the left might indicate:

A tractor/trailer combination always pulls randomly to the left and to the right. The technician finds no apparent problems with a steering system. The next item to check would be for:

Worn shaft preload is the first adjustment when assembling a manual steering box.

If steering box stops (rack piston end of stroke relieving pins) are out of adjustment on a power steering box, the axle stops may be damaged by the power steering.

How can a loose rear axle cause someone to think they have a steering problem?

The first thing to check when a customer complains of "lack of power assist" is:

High turning effort in both directions can be caused by:

If the caster angle is insufficient one result could be:

When caster adjustment is required on a solid axle:

If a complaint of wander is encountered, the problem could be:

When removing a pitman arm from a sector shaft, it is recommend that you use a:

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Heavy-Duty Mechanic - Trucks & Equipment