Auto Information Flashcards
If the shock absorbers are defective
the wheels will rebound excessively after the car hits a bump
Some cylinder heads are made of aluminum because
it is light and conducts heat well
Disk brakes are sometimes used only on the front wheels because
the front wheels provide most of the stopping force
In a 12-volt system, when the electirc current ins 12 volts, the battery is
discharging
In a hydraulic system, a 2-inch dieameter master cylinder drives a 1 inch diameter wheel cylinder, If we move the piston 3 inches into the master cylinder
the force will be reduced at the wheel cylinder
A higher viscosity rating is applied to oil that is
thicker
If a car has a fuel injector, it will not have
a carburetor
When the brake shoes wear down too much, you are likely to see ______ in the drums
scouring (gouges)
When you see blue smoke coming from the tailpipe, you should check the
piston rings
If a car suddenly stops responding to the starter and the headlights do not light, what would be the most likely problem
the battery terminals or cables are corroded
If a manual transmission is in neutral
the engine can run without moving the car
When you bolt a cylinder head into place you should
observe proper tightening torque
If the oil light comes on while you are driving
as soon as it is safe, pull over to find the problem
Which components are not found in a car with electronic ignition
coil wire and distributor
If it’s hard to shift gers in a car with manual transmission
check the free play on the clutch
To improve safety during sudden stops, many cars have an
antilock braking system (ABS)
_______uses sensors to detect wheel rotation
antilock brakes
If a wheel starts to skid during braking, the ABS ________ to that brake then starts pumping the brake
reduces pressure
_____ is a good feature on ice or snow
antilock brake system
Brakes that can not use hydraulics
parking brakes
__________ require a more complicated parking brake
disc brakes
A ___________ has a rotor, that revolves with the wheel and a pair of stationary pads that create friction when they press against the rotor
a disc brake
____ are a big improvement over drum brakes because of their shorter stopping distances and better control
disk brakes
The horseshoe-shaped _____ holds the pads
caliper
After being machined several times, disc brakes become too thin, risking a heat buildup and reduced stopping power called
fading
Drum brakes operate by
expanding two brake shoes inside a large cylinder called a drum
A _______ operates the brake by moving the shoes toward the drum
wheel cylinder
In drum brakes, friction between the ______ and the ____ creates stopping power
shoes and the drum
Wheel cylinders have ___________ that must be replaced when they wear out
rubber pistons
