1. transfers power to the flywheel
   transfers power from engine to wheels
2. creates a rotational motion in the engine's crankshaft
   creates small explosions in the transmission

The drivetrain is what moves the torque (that's what powers the car) from the car's engine to its wheels.

1. transfers driveline power to the axles
   transfers driveline power to the engine
2. transfers driveline power to the transmission
   transfers driveline power to the fuel pump

It splits the driveline power between the axles, and allows them to rotate at different speeds, which they need to do during cornering.

1. the front wheels
   the rear wheels
2. the driver's side front and rear wheels
   the passenger's side front and rear wheels

The "non-driven wheels" on a front-wheel drive car are the rear wheels. It's the opposite for a rear-wheel drive car.

1. front-wheel drive (FWD)
2. rear-wheel drive (RWD)

Front-wheel drive cars have better wet-weather traction than rear-wheel.

1. transmission
   differential
2. crankshaft
   axles

The components of the transaxle are the transmission, differential and axles.

1. death wobble
   oversteer
2. torque steer

When the rear wheels lose control in a turn, it's called oversteer.

1. it takes the place of the brakes
   it takes the place of a manual clutch
2. it takes the place of shock absorbers
   it takes the place of the throttle

The torque converter in an automatic transmission stands in for the clutch used with a manual transmission.

1. transmission fluid is injected into the gears
   the transmission is separated from the differential
2. the engine is separated from the transmission
   it engages the onboard computer

Pressing the clutch in a car with a manual transmission will separate the engine and the transmission.

1. fourth
   second
2. first

You might think the lowest gear is your best option, as it often is, but starting out in second gear has less torque -- and that's good because it lowers the odds of spinning your car's wheels.

1. difficult shifting
   noisy shifting
2. you step on the gas but your car doesn't accelerate
   any of these symptoms

Difficult shifting, noisy shifting and no acceleration when you step on the gas (although your engine speeds up) are all signs of a problem with a component in your car's drivetrain.

1. clear
   black
2. red

If you notice a red liquid leaking on the ground under your car's transmission, it could mean there's a problem with the drivetrain.

1. the number of gears
   the car's top-end speed
2. the relationship between gears
   the length of the idle gear

The gear ratio is the fixed relationship between the initial and the final gears.

1. all-wheel drive
   front-wheel drive
2. four-wheel drive
   rear-wheel drive

Because of the layout of the drivetrain, front-wheel drive vehicles have more legroom and more trunk space than other layouts.

1. city
   highway
2. very dry

Cities, or anywhere else without long, open stretches of high-speed driving.

1. driving uphill
   driving downhill
2. stopping
   turning a corner

Turning a corner is a common reason why your left and right rear (or front) wheels would move at different speeds: the inside wheel, as you corner, rotates faster than the outside wheel.

1. driveshaft
   universal "U" joint
2. wheel assembly
   axle

The driveshaft is the spinning tube that connects the transmission to the differential.

1. Hotchkiss
   torque tube
2. both of these

A driveshaft comes in two types, torque tube or Hotchkiss.

1. differential
   driveshaft
2. powertrain

The battery and electric motor of a hybrid car are considered components of the powertrain.

1. all-wheel drive
   four-wheel drive
2. front-wheel drive
   rear-wheel drive

Rear-wheel drive has been around the longest.

1. car wheels spin at different speeds
   car wheels travel at different distances
2. front wheels travel a different distance than rear
   all of these are true

All of these statements about your car's differential are true statements.

1. a smooth ride
   four wheel drive
2. the difference in speed between the front and rear axles

In a four-wheel drive vehicle, the transfer case doesn't allow for the speed between the front and rear axles to be different -- a helpful feature if you drive off road.

1. automatic transmission
   continuously variable transmissions
2. manual transmission

The gear ratios in a continuously variable transmission (CVT) continuously change based on how fast or slow the car is going.

1. it would make turning difficult
   it would make driving straight difficult
2. it would make braking difficult

If your car didn't have a differential, the wheels would be locked in the same rotation, and it would be difficult for the car to turn.

1. all-wheel drive
   front-wheel drive
2. rear-wheel drive

All-wheel drive is known to have worse fuel economy than four-wheel drive and other drive systems.

1. yes
   no
2. only in certain cars
   only in the warranty

No, a drivetrain and a powertrain are not the same thing.

1. engine oil
   gasoline
2. transmission fluid
   water

Your car's torque converter uses transmission fluid.

1. death wobble
   oversteer
2. torque steer
   understeer

It's called understeer when a front-wheel car's front wheels lose traction while turning.

1. better steering and handling
   better braking
2. better acceleration
   all of these are benefits

The benefits of rear-wheel drive include better steering and handling, better braking and better acceleration.

1. in a rear-wheel drive car
   in a car with spider gears
2. in a front-wheel drive car

You'd find a half-shaft on a front-wheel drive car.

1. a longitudinally-mounted engine
   a belt and two pulleys
2. a changing ratio between input and output shafts

A continuously variable transmission (CVT) uses a belt between two pulleys to determine gear ratios.

1. better off-road handling
   better fuel economy
2. better traction in snowy conditions

Benefits of sending power to just the rear wheels includes better fuel economy than all-wheel drive.

1. 5
   3
2. 1

Three. AWD vehicles have a differential for each set of wheels, a front differential and a rear differential, and, unlike 4-wheel drive vehicles, a center differential between the front and back wheels, as well.

1. banging or clunking
   buzzing
2. a loud, whistling sound

A symptom of a drivetrain problem is a clunking sound that speeds up or slows down depending on how fast or slow you're driving.

1. 2008
   1610
2. 227-239 B.C.

The first verifiable account of a differential gear used in a vehicle goes all the way back to chariots used in the Kingdom of Wei in China, 227-239 B.C.

1. yes
2. no

The suspension system is considered part of a car's drivetrain.