Vocab

Question 1

ABS

Answer 1

Antilock brake system
Electronically monitors wheel speed and prevents wheels from locking up by rapidly cycling brakes during hard stopping or slippery surfaces

Question 2

Actuator

Answer 2

Device delivers mechanical action to a vacuum or electrical signal

Question 3

aeration

Answer 3

the process of air mixing with liquid

Question 4

SRS

Answer 4

Safety Restraint System includes air bags and seat belts

Question 5

Air Gap

Answer 5

gap between spark plug electrodes

Question 6

air-fuel ratio

Answer 6

the proportion of air to fuel by weight in fuel mixture drawn into motor

Question 7

air lock

Answer 7

a bubble of air trapped in a fluid circuit that interferes with normal operation

Question 8

alignment

Answer 8

adjustment to bring into line

Question 9

AWD

Answer 9

All Wheel Drive method of providing traction to any wheel on a vehicle, depending on system may be part or full time

Question 10

ambient temperature

Answer 10

temperature of air around an object

Question 11

ammeter

Answer 11

tool to measure electrical current flow in a circuit

Question 12

amp

Answer 12

unit of measument for electrical current

Question 13

arcing

Answer 13

electrical energy jumping across a gap

Question 14

automatic locking hubs

Answer 14

4 wheel drive hubs that can engage and disengage themselves

Question 15

atomization

Answer 15

breaking a fluid down to a fine mist lighter than air

Question 16

axial

Answer 16

being parallel to the axis of rotation

Question 17

axial load

Answer 17

load placed on bearing that is parallel to axis of the rotating axle shaft

Question 18

backfire

Answer 18

combustion of gases in intake or exhaust manifold resulting in a loud bang

Question 19

backing plate

Answer 19

component which brake shoes and wheel cylinder are attached to

Question 20

backpressure

Answer 20

pressure created by restriction in exshaust system

Question 21

ballast resistor

Answer 21

resistor in primary ignition system which reduces voltage by 4-5 volts

Question 22

ball bearing

Answer 22

an antifriction bearing that uses steel ball held between inner and outer races

Question 23

ball joint

Answer 23

suspension component thar provides a pivot point allowing the steering knuckle to move up and down and turn in response to steering input

Question 24

barometric pressure

Answer 24

pressure of the atmosphere

Question 25

battery

Answer 25

device that produces electricity by electrochemical action

Question 26

battery acid

Answer 26

sulfuric acid solution used as the electrolyte in a battery

Question 27

bearing clearance

Answer 27

amount of space between shaft and bearing for lubricating oil to enter

Question 28

blowby

Answer 28

unburned fuel from combustion that leaks past piston rings and into crankcase as last part of combustion stroke

Question 29

boot

Answer 29

rubber cover over cv axles or rack and pinion assembly to contain lubricant and keep dirt out

Question 30

brake bleeding

Answer 30

purging air from hydralic brake system

Question 31

brake drum

Answer 31

cast iron housing brake shoes press against when braking

Question 32

camber

Answer 32

when viewed from the front the distance between the top and bottom of the tires are different

Question 33

castellation

Answer 33

slots cut in a bolt head or nut which a cotter pin can be used

Question 34

caster

Answer 34

Caster is the angle that identifies the forward or backward slope of a line that is drawn through the upper and lower steering pivot points

Question 35

catalytic convertor

Answer 35

emmisons control device that reduce hydocarbons, carbonmonoxide and nitogen oxidies in exshaust gases

Question 36

center link

Answer 36

steering linkage that attaches pitman arm to idler arm or tie rod ends together.

Question 37

center support bearing

Answer 37

bearing with a rubber insulator that supports the driveshaft

Question 38

check valve

Answer 38

a gate or valve that allows one way flow of gas or fluid

Question 39

circuit

Answer 39

path which electricity flows before returning to its source

Question 40

circuit breaker

Answer 40

heat sensitive spring that breaks contact in an overload condition, automotive circuit breakers reset themselves

Question 41

closed loop

Answer 41

electronic feedback system in which sensors provide constant information on the state of the engine