atasa 5 automotive systems

ATASA 5 TH Study Guide Chapter 3 Pages 37 58 Automotive Systems 53 Points

ATASA 5 th Automotive Systems Please Read The Summary

1. The history of the automobile dates back in the 1800’s. Changes have been based on concerns for ________ and the environment. As new __________________ was developed improvements have been made. Social and political pressures concerning the environment have also driven change.

Safety, Technology Economy, Technology Children, Technology

ATASA 5 th Automotive Systems

2. Manufacturers who do not meet ________ _______ _______ _______ (CAFE) standards face heavy fines. CAFÉ standards, established in 1975, have been tightened regularly.


Cooperative Average Future Economy Corporate Average Fuel Economy Cumulative Average Finite Economy

3. Most cars today do not use bodyoverframe construction, but rather a _____________ which is a stressed hull structure with each of the body parts supplying structural support & strength.

Unibody Full Frame Box Frame


4. Most unibodies are constructed from __________, but a few use aluminum instead.


Magnesium Iron Steel

5. Most frontwheeldrive unibody vehicles have a ____________ or partial frame that is used to support the power train and suspension for the front wheels.


Cradle Stroller Cart

6. Body shapes include: ____________, coupes, convertibles, lift backs, station wagons, __________, sport utility vehicles, and crossover vehicles.


7. All automobile engines are classified as internal ______________ engines (ICE) and burn a variety of fuels in their cylinders to create heat for power. Gasoline & diesel fuel are very popular fuels.


Combustion Hemorrhage Bleeding

8. Gasoline engines are known as _________ ignition engines. ATASA 5 th Automotive Systems

Spark Compression Stratified

9. Diesel engines are known as _________________ ignition engines. ATASA 5 th Automotive Systems

Spark Compression Stratified

10.The ________ is the main casting of an engine. The ________________ is the main shaft.


11. The cylinder ________ forms the top of the combustion chamber. Passageways called ________ are designed into the cylinder head for air flow, fuel flow, and exhaust flow.


12. ___________ reciprocate in the cylinders to complete the 4stroke cycle. The four strokes are, in order: _______, _________, _________, ________.


13. The ______________ motion of the pistons is converted into __________ motion of the crankshaft. The _______________ ______ provides the link to get this motion change done.


14. The _______ ______ is a series of parts used to open & close the valves. ATASA 5 th Automotive Systems

Power Train Drive Train Valve Train

ATASA 5 th Automotive Systems 15. The ________________controls the valves, opening & closing them at the

proper time.

16. Intake and exhaust ______________ direct the flow of gases in & out of the combustion chamber.


17. The lubrication system reduces _____________ in the engine. A liquid _____________ system provides the most efficient way to control engine operating temperature.


Spark, Friction Friction, Cooling Cooling, Reciprocation

18. The air & fuel delivery system controls the a/f __________ to meet changing operating conditions.


Mixture Recipe Stratified

19. Hydrocarbons ____, carbon monoxide ____, and oxides of nitrogen _____ are EPA regulated exhaust gases that require by law an emission control system with a variety of devices on vehicles.


20. The most common pollution control devices or systems found on engines are:

PCV ____________ _____________ ___________ dealing with blowby gases HC & CO

EVAP ________________ emission control system to stop HC fuel vapors

EGR _____________ ______ _______________ that lowers NOx by “cooling the burn”

CAT ____________ _____________ an exhaust system device lowering HC, CO, & NOx

AIR ______ ______________ system or secondary air system used to oxidize HC & CO


21. _______________ systems direct toxic fumes away from passengers and quiet the vehicle.


Steering Suspension Exhaust

22. The ________________ system is used to ignite the A/F mixture in the cylinders at exactly the right time.

The ________________ system rotates the crankshaft to initiate the 4 stroke cycle.

The _________________ system maintains the battery state of charge and provides electrical power for vehicle systems while the engine is running.

Ignition Cranking Charging


23. The _________________ ______________ ______________ system (EEC) continuously monitors the operation of the engine and makes adjustments that will keep it at peak efficiency.

Electronic Engine Control


24. EEC systems have 3 main types of components: input ___________, a _____________, and ___________ devices. Instructions/programs for operation are held in the computer memory.


Sensors Computer Output

25. ____ _______ ____________ (OBD) systems detect problems even before the driver notices a driveability symptom. The driver is alerted by the “check engine” light (MIL) that a problem exists. A ____________ ________ _______ (DTC) is then stored in memory.


OBD II DLC

26. The HVAC system uses engine ____________ and a _______________ to control passenger compartment temperatures. Coolant in the heater core & refrigerant in the evaporator.


Oil, Coolant Coolant, Refrigerant Coolant, Recombinant

27. The __________ __________ is all of the parts that transfer power from the engine to the wheels. Including: clutch, torque converter, manual or automatic transmission or transaxle, differential, drive axles, CV & Ujoints

Drive Train Valve Train Crazy Train


28. The ______________ ________ or chassis systems are all of the parts that control the vehicle. Including: wheels, tires, bearings, brakes, rack & pinion or recirculating ball steering, suspension system & brake systems.

Jogging Gear Running Gear Steering Gear


29. A ____________ _______________ ____________ (HEV) uses one or more electric motors and an engine (ICE) to propel the vehicle.


30. Hybrid vehicles often use _____________________ braking to capture the kinetic energy of the moving vehicle during braking and use it to charge the high voltage battery pack.


Regenerative Compressive Investigative

31. ________________ cycle engines are specially designed to match the needs of the hybrid vehicle.


The Miller Cycle engine and the Atkinson Cycle engine are both variations on the

traditional fourstroke spark ignition engine. These engines operate more efficiently, but

produce lower power outputs.

http://www.autolinedetroit.tv/journal/?p=822#a

Pakistan Atkinson Benson

31. ________________ cycle engines are specially designed to match the needs of the hybrid vehicle.


The Miller Cycle engine and the Atkinson Cycle engine are both variations on the

traditional fourstroke spark ignition engine. These engines operate more efficiently, but

produce lower power outputs. Pakistan Atkinson Benson

atasa 5 automotive systems

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