Car Parts quiz

More questions about Car Parts

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Which parts rub against brake discs to slow a car?

   Answer: Brake pads

   Why: Most modern brake pads feature built-in metal wear indicators that emit a high-pitched squeal when worn down.

2. 2 Medium

   What steering component converts rotational motion into linear motion?

   Answer: Rack and pinion

   Why: The pinion stays fixed while the toothed rack slides past it, a sharper setup that Citroën adopted for the Traction Avant in 1936.

3. 3 Hard

   What is the primary function of a limited-slip differential?

   Answer: Prevents one wheel spinning

   Why: An open differential feeds torque to whichever wheel slips first, so one spinning wheel strands the car; Packard's 1956 Twin Traction was an early cure.

4. 4 Easy

   To warm a cold engine quickly, which part blocks coolant flow?

   Answer: Thermostat

   Why: A wax pellet inside melts at a set temperature, typically 70 to 90 °C, and swells to push the valve open.

5. 5 Medium

   What component converts low battery voltage into high voltage sparks?

   Answer: Ignition coil

   Why: The coil stores energy in a magnetic field; cutting the primary current collapses it and turns 12 volts into up to 40,000.

6. 6 Hard

   Which joint transmits power at a constant velocity through varying angles?

   Answer: CV joint

   Why: A plain universal joint speeds up and slows twice per turn; Ford engineer Alfred Rzeppa cured that in 1926 with six balls in curved races.