Automotive ServiceModern Auto Tech Study Guide

Chapter 1

Pages 1 - 21

The Automobile

65 Points

Automotive Service1. An understanding of the whole automobile is important since failure of

one_______________ can affect the operation of seemingly unrelated systems.

It’s good to know for owners as well as technicians.

System

Bolt

Nut

Automotive Service2. An ______________ is a set of fitted parts or components used to

complete a function.

A __________ is a group of related parts and assemblies used to perform a

specific job in the vehicle.

Vehicle, Fluid

Component, System

Assembly, System

Read the whole statement over again

after writing in your answer!

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…Why would this be important for your learning?

Direct Answer

vs.

Paraphrase

Automotive Service3. A vehicle can be organized into ten major systems:

Automotive ServiceMnemonic Device for Remembering Engine Systems

ME FEEL ICE Mechanical

Electrical

Fuel

Exhaust

Emission Control

Lubrication

Ignition

Cooling

Electronic Engine Control

“A mnemonic device, is any learning technique that aids information retention”

Automotive Service4. __________________ construction uses inner body sections as an integral part

of the vehicle framework.

Texturized

Unibody (Unitized)

Structurized

Automotive Service5. Name 4 common body types:

Automotive Service5. Name 4 common body types:

Sedan

Coupe

Convertible

Hatchback

3-Door

Station Wagon

Mini Van

SUV

Pick-up

MPV

Automotive Service6. The engine ______________ and the cylinder ___________ (s) are

the two main castings of the engine.

Block & Heads

Block & Threads

Block & Tackle

Automotive Service7. The _______________________ and the ____________________ are the

two main shafts of the engine.

Crankshaft

&

Camshaft

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When comparing a cast crank (left) to a forged

crank (right), it’s obvious why the forged unit

fetches a higher price tag. The cast crank’s rough

surface shows that very little finishing machine

work is required, as the casting process yields a

shape that closely resembles the end product. The

forged crank’s smoother and more refined

appearance reveals the extensive machining

operations required after the crank leaves the

forging die.

Automotive Service8. Engines can be mounted either ____________________ (sideways)

or _____________________ (long way)

and can be located in either the __________, the __________, or the

________ of the vehicle.

Transversely

or

Longitudinally

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Front, Middle, & Rear Mounted Engines

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Transverse

Longitudinal

Automotive Service9. Most engines in vehicles are of the ________-____________ _________ type

where four different movements of each piston are used repeatedly in a

complete series of events to change fossil fuel energy to motion.

www.grc.nasa.gov/WWW/K-12/airplane/powert.html

Two-Stroke cycle

Three-Stroke Cycle

Four-Stroke Cycle

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10. In order, the 4 strokes are:

Intake, Compression, Power, Exhaust

Automotive Service10. In order, the 4 strokes are: Intake, Compression, Power, Exhaust

Automotive Service11. Most engines are _________-________________, with more than

one piston & cylinder for the purposes of providing more ___________ &

________________ operation w/ less time between power strokes.

Multi-Cylinder,

Power,

Smoother

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• 4 Basic Vehicle Divisions

– Body

– Chassis

– Drive Train

– Engine

Mnemonic Device for

Remembering

4 Basic

Vehicle Divisions

B C D E

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• 4 Basic Vehicle Divisions

– Body

– Chassis

– Drive Train

– Engine

Automotive Service12. The 3 main parts of any computer system (including the computer

network on a vehicle) are the:

___________, which are electrical/electronic input devices to monitor motion,

pressure, temperature, etc.

_____________ ____________, (known as PCM) which reads sensor data

and directs actions to be taken.

_________________, which are output devices that operate system

components such as motors or relays

Automotive Service13. Fuel systems use either carburetors or can be fuel ________________.

Gasoline (blends) & diesel are common fuels.

Injected

Infected

Inserted

Automotive Service14. Vehicles have extensive ___________________ systems. These systems

control lighting & accessories as well as operating the ignition (spark),

cranking (starting), and the charging subsystems (smaller circuits).

Chemical

Mechanical

Electrical

Automotive Service15. Cooling systems use a liquid mixture of _______ & _________________

(50%/50%) to remove excess combustion heat & to maintain the most

efficient engine operating temperature for mpg & performance.

Alcohol & Water

Water & Acid

Water & Anti-Freeze

Automotive Service16. ______________ systems use oil to reduce friction & wear between

internal engine parts.

Lubrication,

Braking

Steering

Automotive Service17. The Environmental ______________ __________ (EPA) requires vehicles to

meet strict limits for noise level and air pollution levels.

[dB, HC, CO, NOx, & recycling of parts & fluids are all monitored by the EPA]

Automotive Service18. ___________ ____________ configurations may be __________ wheel drive,

________ wheel drive, ________ wheel drive, or ________ wheel drive.

(Abbreviated RWD, FWD, 4WD, & AWD)

Drive Train, Rear, Front, Four, All

Automotive Service19. Transmissions or transaxles may be either __________________ or

_______________________ shifted.

Manually

or

Automatically

Automotive Service20. A transaxle consists of the ___________________ and the

____________________ all in a single unit.

Transmission

&

Differential

Automotive Service21. _________________ systems make the vehicle’s ride smooth.

________________ systems allow the driver to control the direction the vehicle

is moving in.

Suspension

&

Steering

Automotive Service22. The ______________ system parts work together to

develop friction to slow or stop the vehicle.

Brake

Quake

Shake

Automotive Service23. Brake systems may be either __________ or __________ in basic design,

with extras like power assist, antilock, automatic traction control, and

stability control available as popular options. (Service vs. Parking Brakes)

Drum Disc

Automotive Service24. ______ ______________________ is one of the most popular vehicle

accessory systems - found on over 90% of new vehicles. Although powered

by the engine, A.C. is not considered an “engine system”.

Air Conditioning

Navigation

Sonar Braking

Automotive Service25. Occupant safety systems like _______ ________ are known as

Supplemental Inflatable Restraint systems, or just SIR or SRS.

Sun Roofs

Seat Belts

Air Bags

Automotive Service26. A ____________ vehicle uses 2 methods of propulsion; an internal

combustion engine & an electric motor-generator (MG).

___________ braking produces energy to recharge the battery in a hybrid.

Hypoid

High Bird

Hybrid

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Automotive Service26. A ____________ vehicle uses 2 methods of propulsion; an internal

combustion engine & an electric motor-generator (MG).

___________ braking produces energy to recharge the battery in a hybrid.

Regenerative

Radioactive

Rotisserie

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Engine Oil

Engine Coolant

Manual Transaxle Fluid

*Clutch Fluid

*Brake Fluid

Power Steering Fluid Auto Transmission Fluid

Differential Fluid

Windshield Washer Fluid

Battery Electrolyte

Refrigerant

Fuel

*Which, if any of these fluids can be interchanged without causing damage?