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WorksheetsA.S.E. G1 VOCAB created by jb
Total questions: 85
Worksheet time: 43mins
What is the definition of "abrasion"?
The process of mixing air with liquid.
Rubbing away or wearing of a part.
A material added to the engine oil.
A bubble of air trapped in a fluid circuit.
What does "ABS" stand for?
Anti-lock brake system
Automatic braking system
Air brake system
Anti-bounce system
What is the function of an "actuator"?
To measure electrical current.
To deliver mechanical action in response to a signal.
To add material to engine oil.
To mix air with liquid.
What is "amplify" used for in electronics?
To measure air temperature.
To enlarge or strengthen original characteristics.
To mix air with liquid.
To add material to engine oil.
What is "antifreeze" used for?
To increase the voltage of a signal.
To lower the freezing point of water.
To measure electrical current.
To add material to engine oil.
What is the term for the sudden combustion of gases in the intake or exhaust manifold, resulting in a loud explosion?
Backlash
Backfire
Balance shaft
Barometric pressure
Which component is used to reduce voltage by approximately 4-5 volts in the ignition system?
Ballast resistor
Battery cell
Bearing clearance
Bolt head
What is the purpose of a balance shaft in some engines?
To increase speed
To reduce vibration
To enhance fuel efficiency
To improve braking
What is the term for the unburned fuel and products of combustion that leak past the piston rings?
Backpressure
Blowby
Brake fluid
Base circle
What is the function of a bearing race?
To measure bolt diameter
To provide a surface for roller or ball bearings
To adjust brake balance
To store electrical energy
What is the purpose of brake flushing?
To increase the speed of the vehicle
To clean the brake hydraulic system with fresh fluid
To replace the brake pads
To adjust the brake shoes
What does a brake hose connect?
The brake pedal to the master cylinder
The brake lines on the chassis with the calipers or wheel cylinders
The brake shoes to the brake drum
The brake fluid to the reservoir
What is the function of a catalytic converter?
To increase the speed of the vehicle
To reduce hydrocarbons, carbon monoxide, and nitrogen oxides in the exhaust gases
To enhance the vehicle's fuel efficiency
To improve the vehicle's braking system
What is the role of a circuit breaker in a vehicle?
To increase the vehicle's speed
To break contact in an overload condition
To enhance the vehicle's fuel efficiency
To improve the vehicle's braking system
What is carbon monoxide?
A nonmetallic element
A colorless, odorless gas that is highly poisonous
A type of brake fluid
A component of the vehicle's suspension system
What is the function of a clutch in a manual transmission?
To provide electronic feedback
To engage and disengage the engine from the drivetrain
To measure engine compression
To ignite the air/fuel mixture
What does the term "compression" refer to in an engine?
The ability to engage the clutch
The ability to trap air and reduce its volume to create pressure
The ability to provide electronic feedback
The ability to mix two or more ingredients
What is the purpose of a combustion chamber?
To measure the coefficient of friction
To provide a mixture of water and antifreeze
To ignite the compressed air/fuel mixture
To support the vehicle weight
What does "coefficient of friction" measure?
The amount of cranking amperes
The friction developed between two objects in contact
The ratio of the volume in the cylinder
The ability to maintain constant velocity
What is a "control arm" used for in a vehicle?
To provide electronic feedback
To connect the vehicle frame to the steering knuckle or axle housing
To ignite the air/fuel mixture
To measure engine compression
What is the function of a cooling system in a vehicle?
To increase the engine temperature
To remove excess heat from an engine
To decrease the air pressure in tires
To enhance fuel efficiency
What is the purpose of a counterweight in a vehicle?
To increase fuel efficiency
To reduce vibration
To enhance braking power
To improve aerodynamics
What does a diagnostic trouble code (DTC) represent?
A code for vehicle speed
A code for fuel efficiency
A code for identifying a malfunction
A code for tire pressure
What is the function of a diaphragm in a mechanical system?
To increase fuel efficiency
To produce mechanical movement
To enhance sound quality
To reduce air resistance
What is the role of a diode in an electrical circuit?
To store electrical energy
To permit flow of electricity in one direction
To increase voltage
To decrease current
What is the function of direct injection in an automotive system?
It deactivates the system.
It sprays fuel directly into the combustion chamber.
It measures the engine's efficiency.
It controls the engine operation.
What does the term "disc brake" refer to?
A system that uses drum brakes.
A system that uses cast iron discs mounted on the wheel hubs.
A system that deactivates the engine.
A system that measures crankshaft rotation.
What is the role of a disc brake caliper?
It sprays fuel into the combustion chamber.
It conducts electrical current on a spark plug.
It provides clamping force of the brake pads on the disc.
It measures the ratio of energy input to output.
What does the term "efficiency" refer to in automotive terms?
The degree of crankshaft rotation.
The ratio of energy input to energy output of the engine.
The ability to absorb dirt.
The ability to stretch a bolt.
What is an electromagnet?
A device that measures crankshaft rotation.
A magnet formed by electrical flow through a conductor.
A material whose atoms become ionized in solution.
A portion of a transistor from which electrons are emitted.
What does the engine coolant temperature (ETC) sensor do?
Measures the speed of the vehicle
Sends a signal to the ECM regarding the temperature of the engine coolant
Controls the flow of fuel to the engine
Monitors the oil level in the engine
What is the purpose of the exhaust gas recirculation (EGR) system?
To increase the engine's horsepower
To prevent the formation of oxides of nitrogen (NOx)
To cool down the engine
To improve fuel efficiency
What is a feeler gauge used for?
Measuring temperature
Measuring clearances
Measuring speed
Measuring pressure
What is the function of a flywheel in an engine?
To increase fuel efficiency
To smooth the engine's power delivery
To reduce engine noise
To control exhaust emissions
What does the term "ferrous metal" refer to?
Metal that contains copper
Metal that contains iron or steel
Metal that is non-magnetic
Metal that is lightweight
What is the function of a fuel injector?
To draw fuel from the fuel tank
To spray atomized fuel into the intake air stream
To measure the specific gravity of a solution
To seal between parts that would otherwise leak
What is a fuse used for in a circuit?
To connect fuel injectors to the fuel pump
To measure the specific gravity of a solution
To protect the circuit by melting when overloaded
To provide a rigid connection between camshaft and valves
What does a hydrometer measure?
The specific gravity of a solution
The amount of fuel injected into the engine
The pressure in a hydraulic system
The temperature of the engine
What is the purpose of a heatsink?
To measure the specific gravity of a solution
To dissipate heat and protect parts
To spray fuel into the intake air stream
To provide a rigid connection between camshaft and valves
What is the function of an idle air control (IAC) valve?
To control the amount of air allowed to bypass the closed throttle
To measure the specific gravity of a solution
To provide a rigid connection between camshaft and valves
To dissipate heat and protect parts
What is the function of an ignition coil?
To measure the position of the piston
To transform the 12-volt primary current into a high-voltage secondary current
To hold work and guide the operation
To store information on input failure
What does an intercooler do in a turbocharged engine?
It ignites the air/fuel mixture
It cools the compressed air
It measures crankshaft degrees
It prevents circumferential movement
What is the purpose of a jig?
To transform electrical current
To hold work and guide the operation
To detect preignition
To balance radial forces
What is the role of a knock sensor (KS) in an engine?
To detect preignition, detonation, and knocking
To balance radial forces
To insulate wires in an electrical circuit
To open the intake port at the correct time
What is a light-emitting diode (LED) used for?
To insulate wires
To display images
To act as an indicator or in a lighting system
To rebore engine blocks
What is the function of a MacPherson strut in a vehicle?
It reduces friction between moving parts.
It is a principal device in the suspension system.
It measures the mass of air flowing into the intake manifold.
It controls the amount of fuel passing into an injector.
What does a mass air flow (MAF) sensor measure?
The pressure in the hydraulic system.
The degree of vacuum within an intake manifold.
The mass (weight/density) of air flowing into the intake manifold.
The amount of fuel passing into an injector.
What is the purpose of a metering valve in a vehicle?
To measure the degree of vacuum within an intake manifold.
To provide a simultaneous application of front and rear friction materials.
To reduce friction between moving parts.
To fit together as gear teeth.
What does the term "octane" refer to in the context of fuel?
The work an engine must do under load.
The rating indicating a fuel's tendency to resist detonation.
The part of a computer that stores programs and data.
The expected wear when operating under normal conditions.
What is the function of a microprocessor in a vehicle?
It measures the mass of air flowing into the intake manifold.
It receives sensor input and handles calculations.
It controls the amount of fuel passing into an injector.
It is used to monitor the position of a rotating part.
What is the unit of measured electrical resistance?
Volt
Ampere
Ohm
Watt
What does an ohmmeter measure?
Voltage
Current
Electrical resistance
Power
What is the function of on-board diagnostics (OBD)?
Measures fuel efficiency
Monitors computer inputs, outputs, and engine operations
Controls air conditioning
Adjusts tire pressure
What is an open circuit?
A circuit with a complete path for electrons
A circuit with a break preventing electron flow
A circuit with multiple paths for electrons
A circuit with no resistance
What does a piezoelectric sensor generate?
Light
Heat
Voltage
Sound
What is the purpose of a PCV valve?
Controls fuel injection
Meters crankcase vapors into the intake manifold
Measures tire pressure
Adjusts engine timing
What is the function of a parking brake?
Increases vehicle speed
Applies brakes when a vehicle is stopped
Controls steering
Adjusts suspension
What does an oxygen sensor (O2S) enable?
Measures engine temperature
Enables air/fuel mixture control
Adjusts tire pressure
Controls air conditioning
What is the function of a positive crankcase ventilation (PCV) system?
To increase engine power
To filter air entering the engine
To control airflow and prevent engine oil leaks
To cool the engine
What does a potentiometer do?
Measures temperature
Changes voltage by varying internal resistance
Increases engine speed
Controls fuel flow
What is the purpose of a purge system in a vehicle?
To increase fuel efficiency
To clean the air filter
To remove gasoline fumes
To lubricate engine parts
What is the role of a powertrain control module (PCM)?
To control the air conditioning system
To determine engine operation based on sensor inputs
To manage the vehicle's lighting system
To regulate tire pressure
What is the function of a pressure bleeder?
To increase engine power
To externally pressurize the hydraulic system to bleed out air
To cool the engine
To lubricate moving parts
What does the term "rebound" refer to in automotive terminology?
Up-and-down motion
Expansion of a suspension spring after compression
Change of voltage type
Voltage signal from the crankshaft position sensor
What is the function of a "relay" in an automotive system?
Measures variables like coolant temperature
Electromagnetic switch for low amperage circuits
Device to shift the transmission
Expansion of a suspension spring
What does "self-adjusting clutch" mean?
A clutch that requires manual adjustment
A clutch linkage system with automatic pedal play adjustment
A clutch that increases engine speed
A clutch that decreases engine speed
What is the purpose of a "servo" in a vehicle?
To measure engine speed
To control engine speed by adjusting throttle position
To change voltage type
To provide a surplus after separation
What does "shudder" refer to in automotive terms?
A type of brake shoe
A momentary shake or quiver
A surplus after separation
A high-voltage side of the ignition system
What is smog?
Air pollution created by the reaction of nitrogen oxides to sunlight
A swirling of the air/fuel mixture in a corkscrew pattern
A condition in which the engine speeds up and slows down
A ceramic honeycomb grid structure
What is the function of a solenoid?
To join electrical wires by soldering
To perform a mechanical function when energized
To attach the wheel assembly on non-drive axles
To create the spark for the combustion process
What is a spark plug?
A shaft used to attach the wheel assembly
A device connected to a high voltage source that creates the spark for combustion
A suspension component that supports the vehicle
A projecting piece of metal used to rotate the oil pump
What does the term "stoichiometric" refer to?
A swirling of the air/fuel mixture
A chemically correct air/fuel mixture
A condition in which the engine speeds up
A ceramic honeycomb grid structure
What is a subframe?
A removable part of the vehicle frame
A shaft used to attach the wheel assembly
A temperature sensitive variable resistor
A projecting piece of metal used to rotate the oil pump
What is the function of a three-way catalytic converter?
To increase the speed of a vehicle
To reduce exhaust gas emission levels
To improve fuel efficiency
To enhance engine power
What does a throttle position (TP) sensor provide input for?
Engine temperature control
Fuel level monitoring
Computer control system regarding throttle position
Tire pressure monitoring
What is the purpose of a tire pressure monitoring system (TPMS)?
To alert when tire pressure is not within specifications
To measure fuel efficiency
To monitor engine temperature
To control vehicle speed
What is a transfer case used for in a four-wheel drive vehicle?
To increase engine power
To transfer power to the front wheels
To monitor tire pressure
To regulate fuel consumption
What is the function of a vacuum booster?
To increase engine power
To reduce brake pedal effort
To enhance fuel efficiency
To monitor tire pressure
What is the function of a voltmeter in an electrical system?
To measure the current flow
To measure the voltage available
To measure the resistance
To measure the power consumption
What does vortex flow refer to?
A straight flow of fluid
A swirling, twisting motion of fluid
A rapid increase in fluid speed
A decrease in fluid pressure
What is the purpose of a warning light on the instrument panel?
To indicate the speed of the vehicle
To illuminate the interior of the car
To indicate the status of the ABS or brake system
To show the fuel level
What is the role of a water pump in an engine?
To circulate oil through the engine
To circulate air through the engine
To circulate coolant through the engine
To circulate fuel through the engine
What does wheel alignment involve?
Adjusting the tire pressure
Adjusting the suspension and steering components
Balancing the weight of the vehicle
Changing the tires
What is wheel balance important for?
Increasing tire pressure
Preventing vibration at high speeds
Enhancing fuel efficiency
Improving brake performance
What does a wheel cylinder do in a braking system?
It measures the brake fluid level
It activates the brake shoes
It controls the brake lights
It adjusts the brake pedal height
