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Mechanical & Electrical Components Flashcards

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

Read the first 7 Mechanical & Electrical Components flashcards as text

  1. Excessive crankshaft endplay is typically measured with a:

    Answer: Dial indicator

    A dial indicator measures axial crankshaft movement (endplay).

  2. A wheel bearing that produces a humming noise that changes when turning the vehicle indicates:

    Answer: A worn hub/wheel bearing

    Wheel bearing noise commonly changes with cornering load.

  3. The purpose of the voltage regulator in the charging system is to:

    Answer: Control field current to maintain proper output voltage

    The regulator adjusts rotor field current to keep system voltage in range.

  4. Which measurement tool checks cylinder bore for taper and out-of-round?

    Answer: Bore gauge (dial bore gauge)

    A dial bore gauge measures bore diameter at several points to find taper and out-of-round.

  5. A relay's control circuit (coil) typically operates on what compared to the load circuit?

    Answer: Low current to switch a high-current load

    A relay uses a small control current to energize a coil that switches a larger load current.

  6. Worn valve guides most commonly cause:

    Answer: Oil consumption and blue exhaust smoke

    Worn guides let oil enter the combustion chamber, causing blue smoke and oil use.

  7. When testing a battery with a carbon pile load tester, the load is typically applied at:

    Answer: One-half the CCA rating for 15 seconds

    A standard load test applies half the cold cranking amps for about 15 seconds.