Auto and Diesel Tech Quiz

What is the purpose of engine diagnostics in auto and diesel tech?

• To make the engine louder

• To improve fuel efficiency

• To identify and troubleshoot issues with the engine's performance and emissions.

• To change the color of the engine

How are engine diagnostics performed in auto and diesel tech?

• Guessing and trial/error

• Magic spells and incantations

• Specialized diagnostic tools and software

• Asking the engine nicely to tell you what's wrong

What are the main components of a fuel system in an automobile?

• Spark plugs, air filter, radiator

• Tire pressure, windshield wiper fluid, coolant

• Fuel tank, fuel pump, fuel filter, fuel injectors, and fuel lines

• Engine oil, transmission fluid, brake fluid

Explain the working principle of a diesel fuel injection system.

• The diesel fuel injection system relies on a spark plug to ignite the fuel in the combustion chamber.

• The diesel fuel injection system uses a carburetor to mix air and fuel before injecting it into the combustion chamber.

• The diesel fuel injection system injects fuel into the combustion chamber at high pressure using a fuel injector.

• The diesel fuel injection system does not play any role in the combustion process.

What are the common electrical problems in automobiles?

• Tires, brakes, steering wheel

• Air conditioning, radio, windshield wipers

• Battery, alternator, starter, fuses, and wiring

• Radiator, exhaust system, fuel pump

How is the electrical system diagnosed in auto and diesel tech?

• Using a hammer to hit the electrical components

• Guessing and randomly replacing parts

• Diagnostic tools such as multimeters, scan tools, and wiring diagrams are used to test and troubleshoot electrical components and circuits.

• Pouring water on the engine to see if it sparks

What are the main components of a brake system in an automobile?

• Radio, speakers, and GPS navigation system

• Windshield wipers, headlights, and air conditioning

• Brake pads, brake calipers, brake rotors, brake lines, and brake fluid

• Steering wheel, tires, and engine

Explain the working principle of an anti-lock braking system (ABS).

• The ABS works by increasing the braking force to stop the wheels from turning completely.

• The ABS functions by adjusting the suspension system to prevent skidding during braking.

• The ABS works by monitoring the speed of each wheel and preventing them from locking up during braking, which helps the driver maintain control of the vehicle.

• ABS operates by reducing the pressure on the brake pedal to prevent wheel lock-up.

What are the different types of transmission systems used in automobiles?

• Hydraulic transmission

• Electric transmission

• Pneumatic transmission

• The different types of transmission systems used in automobiles are manual transmission, automatic transmission, and continuously variable transmission (CVT).

Describe the process of diagnosing transmission problems in auto and diesel tech.

• Replacing the windshield wipers

• Adding air freshener to the car

• Checking for fluid leaks, inspecting the transmission fluid, performing a road test, and using diagnostic tools to scan for error codes.

• Changing the tires and brakes