Auto 02 - I'm Trying Not To Scream Here.....

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Auto 02 - Im Trying Not To Scream Here..... - Quiz


Batteries, and vehicle charging systems and service are the topic of this quiz.


Questions and Answers
  • 1. 

    A vehicle battery converts what type of energy into electrical energy?

    • A.

      Positive

    • B.

      Negative

    • C.

      Kinetic

    • D.

      Chemical

    Correct Answer
    D. Chemical
    Explanation
    Car batteries use a chemical reaction between an electrolyte (sulfuric acid) and lead to create current.

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  • 2. 

    Once the engine is running, what provides all the electrical power for the vehicle?

    • A.

      The alternator

    • B.

      Solar flares

    • C.

      The battery

    • D.

      The magneto

    Correct Answer
    A. The alternator
    Explanation
    The alternator, driven by the vehicle's crankshaft, generates all the electrical power used by the car while the engine is running.

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  • 3. 

    How many volts of electricity should come from a charged automotive battery?

    • A.

      13.5

    • B.

      9.6

    • C.

      14.5

    • D.

      12.6

    Correct Answer
    D. 12.6
    Explanation
    A car battery gets charged if it is fed 13.5 - 14.5 volts, and a battery that can only provide 9.6 volts will not reliable start an vehicle engine.

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  • 4. 

    What does CCA stand for?

    • A.

      Can't Crank Anything

    • B.

      Car Cranking Amps

    • C.

      Colossal Chemical Amperage

    • D.

      Cold Cranking Amps

    Correct Answer
    D. Cold Cranking Amps
    Explanation
    CCA stands for Cold Cranking Amps. This term refers to the amount of current that a battery can deliver at 0 degrees Fahrenheit (-17.8 degrees Celsius) for 30 seconds while maintaining a voltage of at least 7.2 volts. It is a measure of a battery's ability to start an engine in cold weather conditions.

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  • 5. 

    A car battery’s electrolyte is what type of acid?

    • A.

      Sulfuric

    • B.

      Muratic

    • C.

      Acetic

    • D.

      Nitric

    Correct Answer
    A. Sulfuric
    Explanation
    The correct answer is sulfuric acid. Car batteries typically use sulfuric acid as the electrolyte because it is a strong acid that can efficiently conduct electricity. Sulfuric acid is also commonly used in other industrial applications due to its corrosive properties and ability to react with a wide range of substances.

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  • 6. 

    When disconnecting from a car battery, which terminal should you disconnect first?

    • A.

      Positive

    • B.

      Negative

    • C.

      Alternator

    • D.

      Starter relay

    Correct Answer
    B. Negative
    Explanation
    When disconnecting a battery, always remove NEGATIVE connection first. When reconnecting battery, always connect positive connection first.

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  • 7. 

    If the electrolyte level is low in a battery, what liquid should you top it up with?

    • A.

      Distilled water

    • B.

      Sulfuric acid

    • C.

      Baking soda solution

    • D.

      Lead acid

    Correct Answer
    A. Distilled water
    Explanation
    Clean water is all you need to top up your battery fluid levels, anything else will damage the lead plates.

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  • 8. 

    Load testing tells you what about a battery?

    • A.

      How heavy the battery is

    • B.

      How much the battery can carry

    • C.

      The general condition of the battery

    • D.

      Whether the alternator is providing a charging voltage

    Correct Answer
    C. The general condition of the battery
    Explanation
    Load testing shows how much power (voltage x current) a battery can provide - it shows whether the battery's chemical reaction is strong enough to do what it is meant to (ie; start the engine)

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  • 9. 

    What is the first step for charging an automotive battery?

    • A.

      Connect the charger cables

    • B.

      Plug the charger in

    • C.

      Set the timer for 60 minutes

    • D.

      Service the battery

    Correct Answer
    D. Service the battery
    Explanation
    Servicing the battery cleans the battery and its terminals so that it is in optimal condition to be charged.

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  • 10. 

    When ‘jumping’ a weak car battery, after you’ve connected the positive terminals to one another, the negative (black) cable goes...

    • A.

      From the negative terminal of the weak battery to the negative terminal of the good battery.

    • B.

      From the negative terminal of the good battery to the other car’s frame or engine block.

    • C.

      From the negative terminal of the good battery to the weak car’s alternator.

    • D.

      From the negative terminal of the weak battery to the frame or engine block of the good battery’s car.

    Correct Answer
    B. From the negative terminal of the good battery to the other car’s frame or engine block.
    Explanation
    Jumping a weak battery generates hydrogen gas, which is explosive. Connecting the negative cable to the car's body or frame keeps the spark that will happen when you disconnect the cables away from the battery and its hydrogen gas.

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  • 11. 

    The size of a wrench or socket describes...

    • A.

      The size of the square drive

    • B.

      The size of the bolt

    • C.

      How long the socket is

    • D.

      The size of the bolt head or nut

    Correct Answer
    D. The size of the bolt head or nut
    Explanation
    The size of a wrench or socket describes the size of the bolt head or nut that it can fit onto. This is important because different bolts and nuts come in various sizes, and using the wrong size wrench or socket can result in damage to the bolt or nut, or the tool itself. Therefore, knowing the size of the bolt head or nut is crucial in order to select the correct wrench or socket for the job.

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  • 12. 

    If you are working on a really stubborn fastener what combination is preferable?

    • A.

      1/4” ratchet + six point socket

    • B.

      3/8” ratchet + twelve point socket

    • C.

      !/2” ratchet + six point socket

    • D.

      1/2” flex bar + six point socket

    Correct Answer
    D. 1/2” flex bar + six point socket
    Explanation
    Using a 1/2" flex bar with a six-point socket is preferable when working on a stubborn fastener. The flex bar provides added leverage and flexibility, allowing for more torque to be applied to the fastener. The six-point socket provides better grip and reduces the risk of slipping or stripping the fastener. This combination is ideal for tackling tough fasteners that require extra force to loosen or tighten.

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  • 13. 

    Most imported vehicles use what type of fasteners ( and therefore, sockets & wrenches)?

    • A.

      8-point

    • B.

      12-point

    • C.

      Imperial

    • D.

      Metric

    Correct Answer
    D. Metric
    Explanation
    Most imported vehicles use metric fasteners, which means that they require metric sockets and wrenches. Metric fasteners are measured in millimeters and are more commonly used in countries outside of the United States. This is because the metric system is the standard measurement system in most countries, while the United States primarily uses the imperial system. Therefore, when working on imported vehicles, it is important to have metric tools to properly tighten or loosen the fasteners.

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