Automobile Maintenance Study Notes

Questions and Answers

Toe can cause tire wear if not within manufacturer's specifications.

True

Camber can cause tire wear if not within manufacturer's specifications.

True

Caster can cause tire wear if not within manufacturer's specifications.

False

Technician A says that a PAX run-flat tire uses a special wheel. Technician B says that a standard tire can be used to replace a PAX run-flat tire. Which technician is correct?

Technician A only Signup and view all the answers

Wheel back spacing is also called?

Rear spacing Signup and view all the answers

A tire is labeled 215/60R15 92T; the 92 indicates what?

Load rating Signup and view all the answers

What do the letters 'JJ' mean in a wheel designation size labeled 14 x 7JJ?

The shape of the flange area Signup and view all the answers

A tire is labeled 215/60R15 92T; the T indicates what?

Speed rating Signup and view all the answers

When purchasing replacement tires, do not change tire width from the stock size by more than?

10 mm Signup and view all the answers

Which type of disc brake caliper may leak brake fluid more often?

Fixed disc brake caliper Signup and view all the answers

Brake fluid boiling point can be measured using?

A Boiling Point Tester Signup and view all the answers

What principle is used to create high voltage from low voltage?

Electromagnetic induction Signup and view all the answers

The Aspect Ratio of a tire means?

The ratio of height to width Signup and view all the answers

The pickup coil or trigger is usually electrically connected to the?

Ignition Module Signup and view all the answers

Semi-metallic brake pads are made by a process called?

Sintering Signup and view all the answers

Which of these takes place during regeneration in a Diesel Particulate Filter (DPF)?

Soot is being burned Signup and view all the answers

The brake pad edge code letters 'FF' mean what?

Coefficient of Friction Rating Signup and view all the answers

Engine oil level should be checked?

With the vehicle parked on level ground Signup and view all the answers

A quick-take-up master cylinder is required when what type of caliper design is used on a vehicle?

Low-Drag caliper Signup and view all the answers

What part should be removed to test cylinder compression on a diesel engine?

Glow plug or injector Signup and view all the answers

Technician A says that maintenance-free batteries use a large amount of water. Technician B says that maintenance-free batteries use materials that reduce the amount of water used by the battery. Which technician is correct?

Technician B only Signup and view all the answers

What part causes the disc brake caliper piston to retract when the brakes are released?

The Square-Cut O-ring Signup and view all the answers

Adding a chemical to make ethylene glycol bitter to the taste is called?

Embittered Signup and view all the answers

All safety glasses should meet standards set by?

ANSI (American National Standards Institute) Signup and view all the answers

A potentiometer, a three-wire variable resistor, is used in which type of sensor?

Throttle Position Sensor (TPS) Signup and view all the answers

Technician A says that galvanic activity is the result of a poor ground connection. Technician B says that electrolysis can occur with a poor ground connection. Which technician is correct?

Technician B only Signup and view all the answers

Where is the fuel-pressure regulator located on a vacuum-biased port fuel-injection system?

At the outlet of the fuel rail Signup and view all the answers

Oil viscosity indicates what?

Tendency of oil to resist flowing Signup and view all the answers

Technician A says that with self-adjusting clutch systems, the release bearing constantly rotates. Technician B says the ball bearing portion of the release bearing should be lubricated with high-temperature grease during routine maintenance. Which technician is correct?

Technician B only Signup and view all the answers

Hydroplaning can occur at speeds as low as?

30 mph Signup and view all the answers

Battery hold-down clamps or brackets help reduce ____________, which can greatly reduce the capacity and life of any battery.

Vibration Signup and view all the answers

A starter can be constructed in a smaller size due to the use of ________________ and permanent magnets.

Gear reduction Signup and view all the answers

Two technicians are discussing the need for the history of the vehicle. Technician A says that an accident could cause faults due to hidden damage. Technician B says that some faults could be related to a previous repair. Which technician is correct?

Both Technician A and B Signup and view all the answers

Technician A says the gear reduction occurs when the drive gear turns faster than the driven gear. Technician B says that overdrive occurs when the driven gear turns faster than the drive gear. Which technician is correct?

Both Technician A and B Signup and view all the answers

Technician A says that the cooling system should be tested for leaks using a pressure-operated pump. Technician B says that the freezing and boiling point of the coolant can be tested using a thermometer. Which technician is correct?

Neither Technician A nor B Signup and view all the answers

Technician A says that a wye-wound stator produces more maximum output than the same alternator equipped with a delta-wound stator. Technician B says that an alternator equipped with a delta-wound stator produces more maximum output than a wye-wound stator. Which technician is correct?

Technician B only Signup and view all the answers

Technician A says that adjustable wrenches should be used when torquing fasteners. Technician B says that adjustable wrenches can round the edges of fasteners. Which technician is correct?

Technician B only Signup and view all the answers

Polyglycol brake fluid is what color?

Clear/amber Signup and view all the answers

Technician A says that the ASE tests are based mainly on General Motors products. Technician B says that the ASE exam has an essay portion that is graded by a panel of experts. Which technician is correct?

Neither Technician A nor B Signup and view all the answers

Series wound electric motors produce maximum power at?

0 RPM Signup and view all the answers

The Environmental Protection Agency does not include corrosive materials in its hazardous waste list published in the Code of Federal Regulation.

False Signup and view all the answers

There are ________ millimeters in one centimeter.

10 Signup and view all the answers

ASE certification are valid for how long?

Five (5) years Signup and view all the answers

What is the color of the warning light that indicates hydraulic system failure?

Red Signup and view all the answers

An alternator stator with three windings usually has how many diodes?

6 Signup and view all the answers

The proper term for Vise Grips is?

Locking Pliers Signup and view all the answers

When one synchronizer is shifted into gear, the movement of the other shifter forks is blocked by the?

Interlocks Signup and view all the answers

If an insulated wire rubbed through a part of the insulation and the wire conductor touched the steel body of a vehicle, this type of failure would be called?

Short to ground Signup and view all the answers

Technician A says that two U-joints are used on a driveshaft to prevent vibration. Technician B says that the more equal the U-joint angles, the less chance of driveshaft vibration. Which technician is correct?

Both Technician A and B Signup and view all the answers

Which rating is the ACEA (European Automobile Manufacturers Association) rating specified for use by many European vehicle manufacturers?

A3/B3 Signup and view all the answers

Two technicians are discussing torsion bars. Technician A says that many torsion bars are adjustable to allow for ride height adjustment. Technician B says that torsion bars are usually marked left and right and should not be switched side to side. Which technician is correct?

Both Technician A and B Signup and view all the answers

Electromotive force is another term for?

Voltage Signup and view all the answers

Exhaust hoses should be used because one of the exhaust gases can be deadly in high concentrations. This gas is?

Carbon Monoxide (CO) Signup and view all the answers

Which component is NOT needed in a typical overhead cam engine?

Push Rod Signup and view all the answers

Technician A says that leather shoes offer more protection than canvas shoes. Technician B says that steel-toed boots are essential to protecting your feet from injury. Which technician is correct?

Technician B only Signup and view all the answers

Semiconductors have how many electrons in their valance rings?

Four (4) Signup and view all the answers

On a vehicle equipped with a stop/start system, the engine stops when the vehicle is stopped at a traffic light and then restarts when the driver releases the?

Brake pedal Signup and view all the answers

Vehicles with a bin number of 3 create more of what than vehicles with a bin number of 1?

Emissions Signup and view all the answers

Which component is not part of the chassis system?

Electrical System Signup and view all the answers

Technician A says that automotive air-conditioning refrigerants can be vented into the air if a recovery machine is not available. Technician B says that used automotive air-conditioning oils are considered hazardous. Which technician is correct?

Technician B only Signup and view all the answers

If the brake pedal linkage is not adjusted correctly, brake fluid may not be able to expand back into the reservoir through the _____________ of the master cylinder when the brakes get hot.

Vent port (forward hole) Signup and view all the answers

A vehicle is brought in to have an unusual problem repaired. A valuable source of information that may help the technician repair the problem is?

The vehicle service records Signup and view all the answers

Technician A says to always push heavy objects. Technician B says to always pull heavy objects. Which technician is correct?

Technician B only Signup and view all the answers

Technician A says that fuel tank accident and rollover protection devices include check valves and inertia switches. Technician B says that most fuel lines are made of ABS plastic. Which technician is correct?

Technician A only Signup and view all the answers

Which vehicles use a transfer case?

4WD Signup and view all the answers

Who is responsible for finding the correct part needed by the service technician?

Counter person Signup and view all the answers

An oil filter should be hot drained for how long before disposing of the filter?

12 hours Signup and view all the answers

Technician A says that vehicles with less unsprung weight have better handling. Technician B says that the wheel and tire assembly are considered sprung weight. Which technician is correct?

Technician A only Signup and view all the answers

When jump-starting a vehicle, which of these connections is the last connection to be made?

Engine block Signup and view all the answers

What term describes the weight of the vehicle with all fluids filled but no passengers or cargo?

Curb weight Signup and view all the answers

A service advisor is also called a?

Service Writer Signup and view all the answers

What is not included on a work order?

Customer's mother's maiden name Signup and view all the answers

New vehicle preparation is usually an entry-level vehicle service position and usually involves what duties?

All of the above Signup and view all the answers

All of the following are usual duties of a lube technician EXCEPT?

Inspecting the brake system Signup and view all the answers

Technician A says that the shop foreman diagnoses vehicle problems. Technician B says that the service manager usually repairs vehicles. Which technician is right?

Technician A only Signup and view all the answers

Who is the person that greets the customer and completes the work order?

Service Advisor / Service Writer Signup and view all the answers

What is NOT a duty of a general service technician?

Have the Customer sign the work order Signup and view all the answers

Which person would be concerned with the maintenance of shop equipment?

Service Foreman Signup and view all the answers

Which description best fits the role of the service advisor?

Communicating with customers about service needs Signup and view all the answers

Which person would be concerned with assigning work hours and pay?

Service Manager Signup and view all the answers

A resume should be how many pages long?

One (1) Signup and view all the answers

What personal information should NOT be included on the resume?

Age Signup and view all the answers

Why is having a good driving record good for the shop?

Lowers insurance costs Signup and view all the answers

What should you not wear to a job interview?

Jeans Signup and view all the answers

During an interview, try to show what?

Enthusiasm Signup and view all the answers

Ten dollars per hour is about how much income per year?

$20,000 Signup and view all the answers

One of the deductions from a paycheck is for Social Security. This item is usually shown on the pay stub as?

FICA (Federal Insurance Contributions Act) Signup and view all the answers

Technician A says that the net pay amount is usually higher than the gross pay amount. Technician B says that the gross pay amount is usually higher than the net pay. Which technician is right?

Technician B only Signup and view all the answers

A beginning service technician earns $400 per week. How much should the technician spend on a vehicle payment?

$100 Signup and view all the answers

Which activity does not allow a person to perform any work while at the shop?

Job shadowing Signup and view all the answers

The first self-propelled vehicle that used an OTTO cycle four-stroke gasoline engine was produced when?

1885 Signup and view all the answers

Early vehicles were constructed mostly of what material?

Steel Signup and view all the answers

Early engines were called Flat Head design because they did what?

Used valves beside the chamber Signup and view all the answers

What component regulates the temperature of the coolant in an engine?

Thermostat Signup and view all the answers

A malfunction indicator light (MIL) on the dash may be labelled what else?

Check Engine Signup and view all the answers

To retrieve stored DTC's (Diagnostic Trouble Codes), a service technician needs to use what?

Scan Tool Signup and view all the answers

Automotive service systems are generally separated into how many content areas?

Eight (8) Signup and view all the answers

Fire-extinguishers designed for use on general combustibles, such as cloth, paper, and wood are what classification?

Class A Signup and view all the answers

Fire-extinguishers designed for use on flammable liquids and greases, including gasoline, oil, thinners, and solvents are what classification?

Class B Signup and view all the answers

Fire-extinguishers designed for use on electrical fires are what classification?

Class C Signup and view all the answers

Study Notes

General Automobile Maintenance Study Notes

Proper alignment affects tire wear; both toe and camber adjustments must meet manufacturer specifications.
Caster does not directly influence tire wear.
Only Technician A is correct regarding PAX run-flat tires needing special wheels.
Wheel backspacing is also referred to as rear spacing.
Load rating is indicated by the number in the tire size, with "92" representing the load capacity.
"JJ" in a wheel size refers to the shape of the flange area.
Speed rating is represented by the letter at the end of the tire size; "T" indicates a specific maximum speed.
When replacing tires, do not vary the width by more than 10 mm from stock size.
Fixed disc brake calipers are more prone to leaking brake fluid.
A boiling point tester measures the boiling point of brake fluid.
High voltage from low voltage is created through electromagnetic induction.
The aspect ratio of a tire is the ratio of its height to width.
The ignition module, connected to the pickup coil, is crucial for ignition systems.
Semi-metallic brake pads are produced using a sintering process.
During regeneration of a Diesel Particulate Filter (DPF), soot is being burned.
"FF" brake pad edge code letters indicate a coefficient of friction rating.
Engine oil levels should be checked with the vehicle parked on level ground.
Low-drag calipers require a quick-take-up master cylinder.
Testing cylinder compression in a diesel engine requires removing the glow plug or injector.
Only Technician B is correct about maintenance-free batteries using materials to minimize water usage.
The square-cut O-ring causes the caliper piston to retract when brakes are released.
Adding a bitter chemical to ethylene glycol is referred to as embittered.
Safety glasses must meet ANSI standards.
The throttle position sensor (TPS) uses a potentiometer in its design.
Galvanic activity and electrolysis are both consequences of poor ground connections; only Technician B is correct here.
The fuel-pressure regulator is located at the fuel rail outlet in vacuum-biased port injection systems.
Oil viscosity denotes the oil's resistance to flow.
Only Technician A is correct regarding self-adjusting clutch systems having a continuously rotating release bearing.
Hydroplaning can start at speeds as low as 30 mph.
Battery hold-down clamps prevent vibration, enhancing battery longevity.
Gear reduction allows for a smaller starter size using permanent magnets.
Both technicians are correct about the need for vehicle history regarding hidden damage and previous repairs.
Both Technicians A and B are correct about gear reduction and overdrive concepts.
Neither technician is correct about the methods for testing cooling systems.
Only Technician B is right about the output potential of alternator stator configurations.
Using adjustable wrenches can damage fasteners, so only Technician B is correct.
Polyglycol brake fluid is typically clear or amber in color.
The ASE tests are not primarily focused on General Motors products; thus, neither technician is correct.
Series wound electric motors reach maximum power at 0 RPM.
The EPA does include corrosive materials in its hazardous waste guidelines, rendering the statement false.
There are 10 millimeters in one centimeter.
ASE certifications are valid for five years.
Hydraulic system failure is indicated by a red warning light.
An alternator stator with three windings has six diodes.
Vise Grips are properly known as locking pliers.
Synchronizer interlocks prevent simultaneous shifting of gears.
Insulation failures that touch the vehicle's steel body are described as short to ground.
Both technicians are correct about U-joint functionality preventing driveshaft vibrations.
The ACEA rating for European vehicles often is A3/B3.
Torsion bars are typically marked to avoid side-switching, with both technicians correct.
Electromotive force is synonymous with voltage.
Carbon monoxide (CO) in exhaust can be deadly at high concentrations.
Push rods are not necessary in overhead cam engines.
Both technicians are correct regarding footwear safety in the workplace.
Semiconductors have four valence electrons.
In vehicles equipped with stop/start systems, the brake pedal restarts the engine upon release.
Vehicles with a bin number of 3 are higher in emissions than those with a bin number of 1.
The chassis system does not include the electrical system.
Used automotive air-conditioning oils are considered hazardous, making only Technician B's statement correct.
The master cylinder vent port is essential for facilitating fluid movement during heat expansion.
Vehicle service records are invaluable for diagnosing problems.
Technician A’s statement about moving heavy objects is correct; pushing is preferred over pulling.
Fuel tank protections include check valves and inertia switches; only Technician A is correct.
Transfer cases are utilized in 4WD vehicles.
The counter person facilitates the technicians by sourcing the necessary parts.
An oil filter should be hot drained for 12 hours before disposal.
Vehicles with less unsprung weight improve handling characteristics, leaving only Technician A correct in that conversation.
When jump-starting, the last connection is made to the engine block.
Curb weight is defined as the vehicle's weight with full fluids but empty of occupants or cargo.
A service advisor is also called a service writer.
Customer's personal information, like mother's maiden name, should not appear on work orders.
New vehicle preparation tasks include tire pressure adjustments, removal of protective covering, and installation of dealer options.
Water pump replacement is generally not a lube technician duty.
The shop foreman is responsible for diagnosing vehicle problems; technician A's assertion is correct.
The service advisor greets customers and handles the work order.
General service technicians do not have the responsibility of getting customer signatures on work orders.
Maintenance of shop equipment typically falls to the service foreman.
The service advisor's role closely resembles that of a customer service representative.
Assigning work hours and pay responsibilities is handled by the service manager.
A resume should ideally be one page long.
Age is among personal information that should be excluded from resumes.
A clean driving record benefits shops by lowering insurance costs.
Jeans are inappropriate attire for job interviews.
Showing enthusiasm is crucial during an interview.
Ten dollars hourly translates to approximately $20,000 annually.
Social Security deductions appear on pay stubs as FICA.
Only Technician B is correct about net pay being lower than gross pay.
A technician earning $400 weekly should not spend more than $160 on a vehicle payment.
Job shadowing is an activity without active participation in work.
The first self-propelled vehicle with an Otto cycle engine was produced in 1885.
Early vehicles primarily utilized steel in their construction.
Flathead engine designs featured used valves beside the combustion chamber.
The thermostat is the component that controls coolant temperature in engines.
"Check Engine" may also be labeled as the malfunction indicator light (MIL) on dashboards.
A scan tool is necessary for retrieving stored diagnostic trouble codes (DTCs).
Automotive service systems are categorized into eight content areas.
Fire extinguishers for general combustibles are classified as Class A.
Class B extinguishers are designated for flammable liquids and greases.
Class C extinguishers are intended for electrical fires.

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Description

This quiz covers essential concepts of general automobile maintenance, focusing on tire specifications, alignment, and braking systems. It includes details on tire measurements, like load rating and speed rating, along with the importance of proper adjustments to ensure vehicle safety and performance.