Automotive Fundamentals Assessment

What are the main components of an internal combustion engine?

• Radiator, coolant, thermostat

• Transmission, differential, axle

• Cylinder, piston, crankshaft, camshaft, valves, spark plug, fuel injector

• Alternator, battery, starter motor

Explain the function of the crankshaft in an engine.

• The crankshaft generates electrical power for the engine.

• The crankshaft cools the engine by circulating coolant.

• The crankshaft regulates the fuel injection process.

• The crankshaft converts linear motion from the pistons into rotational motion to power the vehicle.

What is the purpose of regular oil changes in vehicle maintenance?

• To improve fuel efficiency by changing the air filter.

• The purpose of regular oil changes is to keep the engine lubricated and functioning efficiently.

• To increase the resale value of the car.

• To enhance the vehicle's exterior appearance.

Describe the difference between a full service and a basic service.

• A full service is cheaper than a basic service.

• A basic service includes all features of a full service.

• A full service is only available for premium customers.

• A full service provides comprehensive features and support, while a basic service offers only essential functionalities.

What are the signs that indicate brake pads need replacement?

• Brake pads need replacement only if they are visibly cracked.

• Brake pads should be replaced every 10,000 miles regardless of condition.

• Signs that indicate brake pads need replacement include squeaking or grinding noises, reduced braking performance, vibration in the brake pedal, and a warning light on the dashboard.

• Brake pads will always change color when they need replacement.

How does a disc brake system work?

• A disc brake system operates by using electric motors to spin the brake pads away from the disc.

• A disc brake system uses air pressure to inflate rubber pads against a stationary disc.

• A disc brake system uses hydraulic pressure to push brake pads against a rotating disc to create friction, slowing down the vehicle.

• A disc brake system relies on mechanical levers to push brake shoes against the wheel rim.

What is the role of the suspension system in a vehicle?

• The suspension system increases engine power.

• The suspension system controls the vehicle's speed.

• The suspension system supports the vehicle's weight, absorbs shocks, and maintains tire contact with the road.

• The suspension system is responsible for fuel efficiency.

List the common types of suspension systems used in cars.

• MacPherson strut, double wishbone, multi-link, leaf spring, coil spring

• automatic transmission

• disc brakes

• hydraulic brakes

What diagnostic tools are commonly used to identify engine problems?

• Windshield wipers

• OBD-II scanners, multimeters, compression testers, vacuum gauges

• Tire pressure gauges

• Oil filters

How can you tell if a vehicle has a fuel system issue?

• The vehicle's color changes unexpectedly.

• The radio stops working intermittently.

• The tires make a loud noise while driving.

• Symptoms of difficulty starting, stalling, poor acceleration, or fuel leaks indicate a fuel system issue.