ASVAB: Auto and Shop Information Questions and Answers Already Passed

ASVAB: Auto and Shop Information Questions and Answers Already Passed What is the purpose of a spark plug in an internal combustion engine? A spark plug ignites the air-fuel mixture in the engine’s cylinders, enabling combustion. What is the role of the radiator in a vehicle’s cooling system? The radiator cools the engine by dissipating heat from the coolant that circulates through the engine. What does the oil filter do in a car’s engine? The oil filter removes dirt, metal particles, and other contaminants from the engine oil to keep the engine running smoothly. What is the purpose of the timing belt? The timing belt ensures the precise synchronization of the engine’s camshaft and crankshaft, enabling proper engine valve operation. What does the fuel injector do in an engine? 2 The fuel injector delivers fuel directly into the combustion chamber of the engine at the correct pressure and timing. What is the purpose of the brake master cylinder? The brake master cylinder converts force from the brake pedal into hydraulic pressure to activate the brakes. What is the difference between a disc brake and a drum brake? A disc brake uses a rotor and caliper to stop the wheel, while a drum brake uses a rotating drum and brake shoes. What is the function of a car’s catalytic converter? The catalytic converter reduces harmful emissions by converting toxic gases into less harmful substances before they exit the exhaust system. What is the purpose of a clutch in a manual transmission? The clutch disconnects the engine from the transmission, allowing the driver to change gears. What is the difference between a fuse and a circuit breaker? 3 A fuse melts when overloaded to break the circuit, while a circuit breaker trips to stop the current flow without being destroyed. What is the purpose of the power steering system? The power steering system uses hydraulic or electric power to assist the driver in turning the steering wheel with less effort. What is the purpose of the differential in a car’s drivetrain? The differential allows the wheels to rotate at different speeds, especially when turning, to ensure smooth motion. What is the role of a shock absorber in a vehicle? The shock absorber dampens the impact and reduces vibrations from the road to ensure a smooth ride. What is the difference between a front-wheel drive and a rear-wheel drive vehicle? In front-wheel drive, the engine’s power is delivered to the front wheels, while in rear-wheel drive, the power goes to the rear wheels. 4 What is the function of a car’s alternator? The alternator charges the battery and powers the electrical system while the engine is running. What does the term “horsepower” measure