Engine systems, brakes, and electrical diagnostics concepts tested on entry-level ASE automotive technician certification.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the typical voltage output of a fully charged 12-volt automotive battery?
- 13.5 to 14.5 volts when the engine is running
- What is the primary function of an alternator?
- Convert mechanical energy from the engine into electrical energy to charge the battery and power electrical systems
- What is spark plug gap?
- The space between the center and ground electrodes where the spark jumps to ignite the fuel mixture
- Define engine compression ratio.
- The ratio of the volume of the cylinder when the piston is at the bottom compared to when it is at the top
- What does SAE viscosity rating measure?
- The thickness or resistance to flow of engine oil at different temperatures
- What is a cylinder head gasket?
- A seal that prevents coolant and oil from leaking between the cylinder head and engine block
- What is the purpose of an air filter in an engine?
- To prevent dirt and dust from entering the engine through the intake system
- What type of fluid is used in hydraulic brake systems?
- Brake fluid, typically DOT 3, DOT 4, or DOT 5
- What is the function of a master cylinder in a brake system?
- To convert the pressure from the brake pedal into hydraulic pressure that applies the brakes
- What is brake pad wear indicated by?
- A wear indicator pin that contacts the rotor and makes a squealing noise when pads are worn
- What is a brake caliper?
- A component that houses the brake pads and applies pressure to the rotor to stop the wheel
- Describe the function of an ABS (Anti-lock Braking System) sensor.
- To detect wheel rotation speed and signal the ABS control module to prevent wheel lockup during braking
- What is brake fluid hygroscopic?
- It absorbs moisture from the air, which lowers its boiling point and can cause brake fade
- What is the purpose of a starter motor?
- To turn the engine crankshaft fast enough to start the engine by combustion
- What is a ground connection in an automotive electrical system?
- A path back to the negative terminal of the battery that completes an electrical circuit