The benefit of using different length control arms in SLA systems is what

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(CH 1,3,4,5)

Terms in this set (40)

Unitized vehicle bodies (Unibodies) have these special features and applications:
A. Are typically used in large rear-wheel- drive vehicles.
B. Have special steel plates in the hood and truck lid to protect the passengers.
C. All portions of the unibody are constantly load bearing.
D. Have a structured box like compartment to protect the passengers

D. Have a structured box like compartment to protect the passengers

The purpose of the upper control arm and the lower control arm in short and long arm suspension (SLA) is to...
A. Allow the steering knuckle to turn right and left.
B. Control spring action on irregular driving surfaces.
C. Reduce body sway.
D. Control lateral side to side wheel movement.

D. Control lateral side to side wheel movement.

A semi-independent rear suspension system has...
A. Rear axle with an inverted U-section containing a tubular stabilizer bar.
B. Upper and lower control arms
C. A one-piece rear-axle housing
D. A lower ball joint

A. Rear axle with an inverted U-section containing a tubular stabilizer bar.

Which of the following statements about wheel rims is NOT true?
A. Wheel rims must position the tires at the proper distance inward and outward form the vertical wheel mounting surface.
B. A wheel rim with a positive offset has the center of the tire positioned inboard from the vertical mounting surface.
C. A wheel rim with a neutral offset has the center of the tire positioned at the center of the brake rotor.
D. A wheel rim with a negative offset has the center of the tire positioned outboard from the vertical mounting surface.

C. A wheel rim with a neutral offset has the center of the tire positioned at the center of the brake rotor.

A thrust type bearing load is applied...
A. Horizontally
B. Vertically
C. Tangentially
D. Radially

A. Horizontally

Shock absorbers control spring action to help prevent...
A. Improper wheel and tire positions.
B. Wheel oscillations.
C. Excessive steering effort.
D. Slow steering wheel return after a turn.

B. Wheel oscillations.

In a parallelogram steering linkage, the tie rods are parallel to the...
A. Steering arms
B. Center link
C. Upper control arms
D. Lower control arms

D. Lower control arms

All of the statements about recirculating ball steering gears are true EXCEPT...
A. Ball Bearings are mounted between the steering gear and the ball nut.
B. The Lower end of the selector shaft is splined to the idler arm.
C. As the steering wheel is turned, the ball nut moves upward and downward on the worm gear.
D. The steering shaft is attached to the worm gear.

B. The Lower end of the selector shaft is splined to the idler arm.

Excessive rear wheel toe-out on the left rear wheel causes...
A. Excessive tire tread wear
B. Harsh ride quality
C. Reduced steering effort
D. Excessive wheel oscillations

A. Excessive tire tread wear

Proper wheel alignment is extremely important to provide all of the following EXCEPT...
A. Steering control
B. Ride quality
C. Minimizing suspension vibration
D. Normal tread life

C. Minimizing suspension vibration

All of the following statements are true EXCEPT...
A. Zero offset, the rim center line aligns with the mounting surface of the rim.
B. Positive offset, the rim center line is inboard of the mounting surface of the rim.
C. Positive offset, the rim center line is outboard of the mounting surface of the rim.
D. Negative offset, the rim center line is outboard of the mounting surface of the rim.

C. Positive offset, the rim center line is outboard of the mounting surface of the rim.

When did TPMS systems become federally mandated?
A. 1996
B. 2006
C. 2000
D. 2008

D. 2008

What is the maximum speed rating in MPH for a "T" rated tire?
A. 112
B. 124
C. 118
D. 130

C. 118

Dynamic wheel imbalance can result in...
A. Lateral wheel shimmy
B. Increased steering effort
C. Tire and wheel tramp
D. Normal tire tread life

A. Lateral wheel shimmy

When a tire has a conicity problem...
A. The tire has excessive lateral runout
B. The tire has excessive radial run out
C. The tire is cone shaped and is not level across the the tread area
D. The tire is separating between the the cord plies and the side wall

C. The tire is cone shaped and is not level across the the tread area

The Uniform Tire Quality Grading system provides consumers with useful information to help them purchase tires based on all of the following EXCEPT...
A. Temperature Rating
B. Traction Rating
C. Speed Rating
D. Tread Wear Rating

C. Speed Rating

Nitrogen tire inflation provides...
A. Increased tire rolling resistance
B. Improved puncture resistance
C. Improved ride quality
D. More stable tire pressure

D. More stable tire pressure

The tread wear indicator bar becomes even with the surface of the tread then the tire is worn to...
A. 4/32in
B. 2/32in
C. 2/16in
D. 7/32in

B. 2/32in

Static unbalance causes...
A. Cupped tire wear
B. Even wear on the edge of a tire tread
C. Even wear in the center of the tire tread
D. Feathered tire tread wear

A. Cupped tire wear

When installing replacement tires...
A. Different sized tires can be installed on the same axle
B. Snow tires can be different type and size than the original tires on the vehicle
C. If the tire size is different than the original tire size, ABS system operation can be affected
D. 4WD and AWD vehicles can have different sized tires on the front and rear

C. If the tire size is different than the original tire size, ABS system operation can be affected

A tapered roller bearing has...
A. Rollers that have the same diameter at both ends
B. Excellent ability to carry radial, thrust, and angular loads
C. Horizontal inner surfaces of the inner and out races
D. A separator that allows the rollers to lightly contact each other

B. Excellent ability to carry radial, thrust, and angular loads

A spring-loaded seal compensates for all of these conditions EXCEPT...
A. Seal lip wear
B. Shaft movement
C. Bore eccentricity
D. Wear on the seal bore

D. Wear on the seal bore

When two separate tapered roller bearings are located in a front steering knuckle on a FWD car, the wheel bearing endplay adjustment is provided by...
A. The bearing race position
B. Wheel nut torque
C. Hub nut torque
D. Wheel hub position

C. Hub nut torque

Greases are named for their thickening agent. All of these are common types of greases EXCEPT...
A. Lithium
B. Sodium
C. Teflon
D. Aluminum

C. Teflon

All of the following statements are true EXCEPT...
A. Greases are named for their thickening agent
B. NLGI classifies gear lubricants
C. The prefix GC is the highest designation for automotive wheel bearing greases
D. The prefix LB is the highest designation for automotive wheel chassis greases

B. NLGI classifies gear lubricants.

When inspecting and servicing bearings...
A. Some RWD vehicles have bearings that are sealed on both sides
B. In a sealed bearing, the seal is usually attached to the inner race
C. Endplay adjustment is not critical on tapered roller bearings
D. A roller bearing can be removed correctly by striking it with a steel hammer

A. Some RWD vehicles have bearings that are sealed on both sides

All of the following statements are true EXCEPT...
A. Tapered roller bearings have excellent capability to carry radial, thrust and angular loads
B. Ball bearings are used in most wheel bearings
C. A roller bearing has rollers with the same diameter at each end
D. In tapered roller bearings the openings in the separator groves match the curvature of the rollers

B. Ball bearings are used in most wheel bearings

While inspecting and servicing wheel hub seals...
A. You'll find many wheel hub seal lips made from a plastic compound
B. Springless seals may be used in applications where they must seal a light fluid
C. A spring loaded seal helps compensate for wheel hub boar eccentricity
D. The sealer on the outer surface of a seal housing improves seal and hub bore alignment

C. A spring loaded seal helps compensate for wheel hub boar eccentricity

When inspecting and servicing front wheel bearings on FWD vehicles...
A. Some one-piece front wheel bearing hubs are bolted to the front strut
B. In a one-piece front wheel bearing hub, the outer end of the drive axle is splined to the outer bearing race
C. When the steering knuckle contains two tapered roller bearings, the torque on the drive axle nut does not affect bearing endplay
D. Some front wheel bearings mounted in the steering knuckle contain two tapered roller bearings with a split inner race

D. Some front wheel bearings mounted in the steering knuckle contain two tapered roller bearings with a split inner race

When inspecting and servicing rear wheel bearings on RWD vehicles...
A. On some rear wheel bearings, a threaded adapter ring retains the bearing on the axle shaft
B. Roller type rear axle bearings may be lubricated from the oil supply in the differential
C. A GL-2 lubricant is recommended in hypoid-type differentials
D. An SAE 50 gear oil is recommend in many differentials

B. Roller type rear axle bearings may be lubricated from the oil supply in the differential

The main purpose of shock absorbers and struts is to...
A. Control spring action
B. Prevent fore and aft wheel movement
C. Reduce lateral wheel movement
D. Prevent wheel shimmy

A. Control spring action

All of the following about shock absorber design and operation are true EXCEPT...
A. The oil flow through the orifices and valves is matched to the spring's strength and deflection rate
B. A typical shock absorber may have 70% of the total control of the extension cycle
C. During jounce wheel travel the piston moves upward in the shock absorber's lower tube unit
D. A nitrogen gas charge inside of a shock absorber will prevent oil foaming

C. During jounce wheel travel the piston moves upward in the shock absorber's lower tube unit

Compared to a conventional shock absorber, a heavy duty shock absorber has...
A. Triple layers of steel in the lower tube unit
B. Higher viscosity oil
C. a larger diameter piston rod
D. a high quality seal for longer life

D. a high quality seal for longer life

All of the following statements about gas filled shock absorbers are true EXCEPT...
A. A hydrogen gas charge is used in most shock absorbers and struts
B. The gas charge creates a mild boost in spring rate
C. The primary function of the gas charge is to minimize aeration of the hydraulic fluid
D. A gas filled shock absorber provides continuous dampening action with very little wheel movement

A. A hydrogen gas charge is used in most shock absorbers and struts

The magneto-rheological fluid used in some shock absorbers and struts contains...
A. Transmission fluid
B. Small suspended metal particles
C. Antifoaming agents
D. A dye for lead detection purposes

B. Small suspended metal particles

During normal strut operation...
A. Downward wheel movement is called wheel jounce
B. the strut prevents excessive wheel oscillations
C. When the wheel moves upward the strut also moves upward
D. You Answered The strut prevents wheel shimmy

C. When the wheel moves upward the strut also moves upward

Travel sensitive struts...
A. Have an adjustment on the outside of the strut
B. Provide more resistance to oil movement when compressed
C. Provide more resistance to oil movement when driving on a smooth road surface
D. Bypass some of the oil past the piston when compressed

B. Provide more resistance to oil movement when compressed

Adjustable struts...
A. May be adjusted with a control knob from inside the passenger compartment of the vehicle or individually on the strut bodies
B. Vary oil movement based on temperature
C. Provide the softest ride quality at the highest numerical setting
D. Rotate the upper part of the strut to provide adjustable ride quality

A. May be adjusted with a control knob from inside the passenger compartment of the vehicle or individually on the strut bodies

All of the following are benefits of replacing faulty struts with a complete preassembled OEM replacement strut assembly EXCEPT...
A. Quicker installation times as there is no need to disassemble the existing strut
B. A new and coil spring is used and will provide the original spring rate desired by the manufacturer
C. A new strut mount and bearing is used to regain original steering quality
D. Lower cost than replacing the strut cartridge alone

D. Lower cost than replacing the strut cartridge alone

Electronically controlled shock absorbers and struts...
A. Contain an electronically controlled actuator in the top of each strut
B. Have 12 different modes of operation
C. Have an electronically controlled actuator that rotates the strut piston rod
D. Have an actuator that positions the strut valves to provide more oil restriction in the soft mode

A. Contain an electronically controlled actuator in the top of each strut

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What controls the amount of assist in most power steering systems?

A control valve then dictates how much hydraulic pressure is needed to move the wheels in either direction depending on the steering input. The hydraulics amplify the amount of load being applied to the steering rack, thus reducing the levels of effort needed to change direction.

Which of the following is not a component of a steering system *?

Explanation: In the linkage-type power steering system, the power cylinder is not a part of the steering system.

Which of the following is a feature of rack and pinion steering systems?

The rack and pinion gear set has two main functions: Conversion of the steering wheel's rotational motion into the linear motion needed for the vehicle's wheels to turn. Reduction of gears, which makes it easier for the steering wheel to turn the wheels.
Conventional Steering – This system uses a steering box, with fluid controlled by a spool valve on a torsion bar that responds to driver input. The steering box contains gears that transmit driver input to the Pitman arm. The Pitman arm is connected to the linkage and provides the movement required to turn the wheels.