Auto 1101

chassis

Skeleton of the car

electrical system

your cars nervous system - battery charged - spark for engine - and runs computers for eveything.

cooling system

antifreeze - coolant jackets - water pump - radiator - thermostat MVP

Fuel system

Gas fuel injection - Programmable spice dispenser.

Diesel fuel injection - extremely hot compressed air, heat does the job

engine lucubration system

oil pump - oil filter - distribution - oil clean, keeps oil good

exhaust system

Get rid of waste & clean emissions & keep noise down.

Exhaust manifold - pipes - catalytic converter - muffler resonator

transmission

• Manual = you shift gears with a stick and use a clutch pedal

• Automatic = shifts gears on its own using a torque converter instead of a clutch

clutch - manual only

Connects/disconnects engine power when you press the clutch pedal

Torque converter - automatic only

Does the same job as clutch, but uses fluid instead of mechanical connection.

front wheel drive (fwd)

front wheels only, better space & fuel economy

Rear wheel drive (RWD)

Rear wheels only, separate transmission

All wheel drive (AWD)

Power on all 4 wheels, best traction in bad weather.

What is the name of the automotive chassis design that has a floorpan and a small subframe section in the front and rear?

uni body design

When air and fuel are compressed, they become very blank

flammable

The valve is opened by a blank on the camshaft.

a lobe

What are the names of the parts that seal the combustion gases between the piston and the cylinder?

Piston rings

The movement of the piston from the top of its travel to the bottom of its travel is called a blank .

A stroke (down stroke / power intake / exhaust stroke)

List the four strokes of the four-stroke cycle in order.

1. intake stroke - piston moves down

2. compression stroke - piston moves down

3. power stroke - spark plug ignites mixture

4. exhaust stroke - Piston moves up, exhaust valve opens to push the burnt gases out of the combustion chamber

catalytic converter

an exhaust emission control device transforms toxic gases from combustion engine into less harmful substances.

The air–fuel mixture is blank as the piston moves up on the compression stroke.

The air–fuel mixture is compressed (or compressed / squeezed) as the piston moves up on the compression stroke.

1. The air–fuel ratio on gasoline engines ranges from about what 1:1 to what 2:1.

What is the name of the butterfly valve that controls the amount of air entering the engine?

Throttle valve — more commonly called the throttle plate or simply the throttle.

the what allows the rear wheels to rotate at different speeds as the vehicle goes around corners?

Differential

The starter motor pinion drives the what gear on the crankshafts flywheel

The ring gear.

Parts of a computer system content in the exhaust system that react to temperature, airflow, engine load, speed, and oxygen content in the exhaust stream are called..?

Sensors

Person A - Says the INTAKE valve is CLOSED during the POWER stroke.

Person B - says the EXHAUST valve is CLOSED during the COMPRESSION stroke.

who is correct?

Both are correct.

Which of the following the true about diesel engines?

A - diesel engines don’t compress the air in the cylinder as much as gasoline engines do.

B - Disel timing is controlled by when the fuel is injected into the cylinder.

Diesel timing is controlled by when the fuel is injected into the cylinder. [1]

Technician A says that an ignition spark is 12 volts. Technician B says that the spark happens just after the power stroke begins. Who is right?

1. Technician A

2. Technician B

3. Both A and B

4. Neither A nor B

Neither A nor B

1. Technician A says that most rear-wheel-drive cars have a transaxle. Technician B says that front-wheel-drive cars have two driveshafts. Who is right?

   1. Technician A

   2. Technician B

   3. Both A and B

   4. Neither A nor B

Neither A nor B

Only fancy cars (like some Porsches) put a transaxle in the back.

Front-wheel-drive cars definitely don't have two driveshafts.

person A - says that gears are changed to increase or decrease engine torque.

Person B - says that the majority of new cars have automatic transmissions.

Both A and B

Person a - says that a STEAM engine is an EXTERNAL COMBUSTION engine.

Person b - says that a FOUR STROKE PISTON engine is an INTERNAL COMBUSTION engine.

Both are right

1. Steam engine = campfire

2. FOUR STROKE PISTON engine = like a car engine.

All of the following are true about FOUR STROKE cycle gasoline engine EXCEPT:

• It is called an Otto-cycle engine.

• During the compression stroke, both valves are closed.

• It is a compression-ignition engine.

• Piston movement from the top of the cylinder to the bottom is called a stroke.

NOT TRUE (answer) - its a COMPRESSION IGNITION engine

gasoline engine = spark plug for fuel

Diesel engine = COMPRESSION - IGNITION no spark plug needed.

Person A says - CAFE standards can change VEHICLE EMISSIONS

Person B says - CAFE standards can change FUEL ECONOMY

1. Person A. - Vehicle emissions are governed by separate emissions (EPA)

2. CAFE = fuel economy (MPG miles. per. gallon.)

First left?

engine

First one to the right?

CV joint

second to the left?

Clutch

Second right?

Drive axle

Third left?

Trans axle

Third right?

Differential

Top first?

engine

Top second?

Transmission

Top third?

Differential

Top fourth?

Rear axle shaft

Bottom first?

Clutch

Bottom second?

Propellor shaft.

Bottom third?

Rear axle housing