Ch.1&2: The Automobile, Automotive Careers, and ASE Certification Research Study With Verified Answers.

accessory system - correct answer systems that are not vital to a vehicle's operation, including the air conditioner, sound system, power seats, and rear window defogger. aerodynamics - correct answer study of the motion of air as it interacts with a moving object. It is a major concern for automotive designers when creating a vehicle body. air-fuel ratio - correct answer ratio by weight between the air and fuel that makes up an engine's fuel charge all-wheel drive - correct answer type of drive system that transmits power to all four wheels at all times. A special internal clutch in the transfer case diverts more or less power to the front wheels depending on road conditions. assembly - correct answer a set of fitted parts designed to complete a specific function. automobile - correct answer term derived from the Greek word "autos", which means self, and the French word "mobile", which means moving. Modern "self-moving" vehicles combine engineering and technology in a safe, reliable means of transportation. body - correct answer a steel, aluminum, fiberglass, plastic, or composite (carbon fiber) skin forming the outside of a vehicle. body-over-frame construction - correct answer vehicle design in which the body is installed over the frame and held in place by large bolts. This design is still used on some large passenger cars, larger vans, pickup trucks, and sport utility vehicles. brake system - correct answer a collection of components that work together to stop a vehicle charging system - correct answer System that consists of battery, alternator, drive belt, voltage regulator, charge indicator and charging harness. The job of the system is to reenergize the battery as the engine is running and provide electricity to the various vehicle electrical systems. chassis - correct answer framework of a vehicle without its body panels Coefficient of drag (Cd) - correct answer the numerical value that represents the resistance of an object through air or water component - correct answer the smallest removable item on a vehicle. Can also be referred to as a part. computer system - correct answer electric and electronic devices that control specific vehicle systems cooling system - correct answer radiator and other components that allow a coolant to circulate and maintain a constant engine operating temperature. They are also necessary to control operating temperatures of an HV battery, motor-generator, or HV ECM circuit in hybrid/electric vehicles. direct gasoline injection system - correct answer fuel injection system that, in addition to an electric fuel pump, uses a mechanical fuel pump and high-pressure injectors to spray fuel straight into an engine's combustion chambers; also called direct electronic fuel injection. drive train - correct answer all of the collective parts (engine, transmission, drive shaft, differential, drive axles, etc.) that generate power and transmit it to the wheels. emission control system - correct answer a system that is used to reduce the amount of harmful substances emitted into the atmosphere by an automobile. engine - correct answer A device that converts energy into useful mechanical motion. exhaust system - correct answer components that quiet and carry exhaust emissions to the rear of a vehicle. These components include the muffler, exhaust pipes, catalytic converter, and exhaust manifold. frame - correct answer the steel structure that supports or is part of the vehicle's body front-wheel drive - correct answer configuration with the drive wheels located in the front of a vehicle, with the engine and transaxle placed directly above. All of this weight in the front of a vehicle provides superior traction. fuel efficiency - correct answer EPA numerical test rating for the distance a vehicle can travel on one gallon of fuel fuel system - correct answer vehicle system and set of components to store fuel and deliver a combustible air-fuel mixture to the engine cylinders as needed. Hybrid electric vehicle (HEV) - correct answer vehicle that uses two different sources of propulsion to power the vehicle drive train ignition system - correct answer Components that produce a spark to ignite the air-fuel mixture in the engine. lighting system - correct answer the system that provides illumination inside and outside a vehicle lubrication system - correct answer method of distributing lubricant (oil) to moving parts to minimize friction mid-engine drive train - correct answer rear-wheel drive configuration with the engine located right behind the driver's seat with a transaxle mounted behind it. Equal weight is distributed to each tire for high cornering capabilities multi-cylinder engine - correct answer engines that have more than one piston and cylinder. Automotive engines are classified as this. rear-wheel drive - correct answer configuration with the engine in the front of a vehicle and the drive wheels in the rear. Due to vehicle weight being more evenly dispersed, his drive train configuration offers more precise steering than front-engine, front-wheel drive vehicles. regenerative braking - correct answer braking system in a hybrid vehicle that uses the energy from slowing the rotational force of the vehicle's drive axles to spin the motor generator, causing the motor generator to produce electrical energy to recharge the battery. safety system - correct answer systems that provide protection for vehicle passengers, including seat belts, airbags, and security systems. semi-automatic transmission - correct answer type of transmission that often uses paddle shift buttons on the steering wheel instead of a console shift lever. Electric actuators switch gear locations semi-automatically based on signals sent to a computer control system from the paddle shifters. starting system - correct answer electric motor and other components used to rotate the engine until it starts steering system - correct answer components that let the driver change the direction of a vehicle