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Automotive Technology Flashcards

7 cards from real NOCTI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Automotive Technology flashcards as text

  1. What type of system uses hydraulic pressure transmitted through brake fluid to actuate wheel brakes?

    Answer: Hydraulic brake system

    Automotive hydraulic brake systems use incompressible brake fluid to transmit force from the master cylinder to the wheel cylinders or calipers.

  2. What is the purpose of the ABS (Anti-lock Braking System) in a vehicle?

    Answer: Prevent wheel lockup during hard braking to maintain steering control

    ABS rapidly modulates brake pressure to prevent the wheels from locking, allowing the driver to maintain steering control during emergency stops.

  3. A vehicle pulls consistently to one side during normal braking. Which component is the MOST likely cause?

    Answer: Seized or sticking brake caliper on the pulling side

    A seized or dragging caliper applies uneven braking force, causing the vehicle to pull toward the side with more brake clamping force.

  4. Which suspension component directly connects the wheel hub/steering knuckle to the vehicle frame and controls wheel travel?

    Answer: Control arm

    The control arm links the steering knuckle to the vehicle frame, allowing controlled up-and-down wheel movement while maintaining proper alignment geometry.

  5. What causes brake fade in a heavily used drum brake system?

    Answer: Heat buildup reducing friction between shoes and drum

    Brake fade occurs when excessive heat from repeated braking reduces the coefficient of friction between the brake shoes and drum, decreasing stopping power.

  6. What is the recommended action when a disc brake rotor measures below the manufacturer's minimum thickness specification?

    Answer: Replace the rotor

    A rotor below minimum thickness specification must be replaced because it cannot safely absorb and dissipate heat, risking brake failure.

  7. Which type of wheel bearing is most commonly found on the front non-drive axle of modern front-wheel-drive vehicles?

    Answer: Ball bearing hub assembly

    Modern front-wheel-drive vehicles commonly use sealed ball bearing hub assemblies that require no adjustment or periodic greasing.