RRHS Auto Exam: Trivia Quiz!

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RRHS Auto Exam: Trivia Quiz! - Quiz


Are you ready for the RRHS Auto Exam? This quiz can help with that. According to this quiz, you must understand what method to use to tighten the lug nuts, what to look for when inspecting wheel studs for anything wrong with them, a typical disc rotor, and how often you should brake fluid be changed on the 1931 model A. This quiz will get you ready for the RRHS Auto Exam. You can do it.


Questions and Answers
  • 1. 

    On a vehicle with 5 lug nuts per wheel, once all of the lug nuts have been torqued, go around them again, in a _______________ to ensure that you did not miss any in the previous tightening sequence.

    • A.

      Star pattern

    • B.

      Circular pattern

    • C.

      Alternating pattern

    • D.

      None of the above

    Correct Answer
    A. Star pattern
    Explanation
    Always use a star pattern to ensure the wheel is uniformly tightened to the hub.

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  • 2. 

    When installing wheels on a vehicle that a technician just finished servicing, the technician should use a(n) __________________________ to tighten each wheel lug nut.

    • A.

      Impact gun

    • B.

      Air ratchet

    • C.

      Torque wrench

    • D.

      None of the above

    Correct Answer
    C. Torque wrench
    Explanation
    The torque wrench ensures each lug is tightened exactly as much as each other lug.

    Rate this question:

  • 3. 

    When inspecting wheel studs for damage, a technician should look for which of the following?

    • A.

      Necked-down or thinned-out sections

    • B.

      Cross-threading

    • C.

      Seizing of the lug nut on the stud

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    Each of these are examples of how a stud could be damaged.

    Rate this question:

  • 4. 

    Which of the following is a typical disc rotor?

    • A.

      Hub-style

    • B.

      Hubless-style

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    C. Both A and B
    Explanation
    Disc rotors are available in both a hub and hubless-style configuration.

    Rate this question:

  • 5. 

    Removing the rotor is usually required when the rotor:

    • A.

      Is under the specified minimum thickness.

    • B.

      Would be under the minimum thickness after machining.

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    C. Both A and B
    Explanation
    The rotor would need to be replaced in both of these circumstances.

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  • 6. 

    True or False. Rotors that are too thin cannot handle as much heat and will experience brake fade.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Rotors that are too thin do not have the same mass as those that are thicker. As a result, they hold onto more heat and fade is experienced.

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  • 7. 

    Excessive brake disc rotor thickness variation will cause:

    • A.

      Steering wheel shimmy.

    • B.

      A brake surging feeling.

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    C. Both A and B
    Explanation
    Excessive thickness variation will cause surging and may lead to a shimmy in the steering wheel.

    Rate this question:

  • 8. 

    Which of the following is a type of disc brake pad wear indicator?

    • A.

      Scratcher type

    • B.

      Sensor type

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    C. Both A and B
    Explanation
    Both of these are options for brake pad wear indication.

    Rate this question:

  • 9. 

    Which of the following can cause brake pedal pulsation?

    • A.

      Rotors with excessive lateral run out

    • B.

      Anti-lock braking system operation

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    C. Both A and B
    Explanation
    Both of these will cause brake pedal pulsation, but when the ABS operates, it's considered normal.

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  • 10. 

    If the ________________ anti-lock braking system warning lamp illuminates, it typically means the vehicle's power train control module has observed a fault in the anti-lock brake system and will need to be checked for diagnostic trouble codes.

    • A.

      Red

    • B.

      Blue

    • C.

      Yellow

    • D.

      None of the above

    Correct Answer
    C. Yellow
    Explanation
    The ABS warning light is most often yellow. It is a less threatening situation for the vehicle occupants, than low brake fluid.

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  • 11. 

    Disc brake rotors with holes or slots machined into their surface can help:

    • A.

      Dissipate heat more quickly.

    • B.

      Remove water more quickly

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    C. Both A and B
    Explanation
    Slotted and drilled will help with both heat removal and water removal, but it reduces the friction area of the pad with the rotor.

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  • 12. 

    All of the following are disadvantages of disc brake systems, EXCEPT:

    • A.

      Water dissipation.

    • B.

      Rotor warpage.

    • C.

      Squeals.

    • D.

      Squeaks.

    Correct Answer
    A. Water dissipation.
    Explanation
    Water dissipation is an advantage of the disc braking system.

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  • 13. 

    Which of the following is/are LEAST likely to be used. or should not be used, to reduce disc brake squeal?

    • A.

      Shims

    • B.

      Spacers

    • C.

      Axle grease

    • D.

      Bendable tangs

    Correct Answer
    C. Axle grease
    Explanation
    Axel grease is not used on braking components.

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  • 14. 

    Tech A says that a wheel stud that shows signs of cross-threaded lug nuts should be rethreaded with a die and put back in service. Tech B says that a wheel stud that shows signs of cross-threaded lug nuts should be replaced. Who is correct?

    • A.

      Tech A

    • B.

      Tech B

    • C.

      Both Techs A and B

    • D.

      Neither Tech A nor B

    Correct Answer
    B. Tech B
    Explanation
    If found to be damaged, wheel studs and lugs should never be reused or repaired.

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  • 15. 

    Parking brakes use a _______________________ to maintain tension on the parking brake cables and assembly when applied.

    • A.

      Ratcheting mechanism with cables

    • B.

      Scrum mechanism with belts and pulleys

    • C.

      Both A and B

    • D.

      None of the above

    Correct Answer
    A. Ratcheting mechanism with cables
    Explanation
    Parking brakes use a ratcheting mechanism with cables to maintain tension on the parking brake cables and assembly when applied. This mechanism allows the parking brake to hold the vehicle in place by preventing the cables from loosening or releasing tension. The ratcheting mechanism ensures that the tension is maintained until the brake is released, providing a secure parking brake system. The use of cables in conjunction with the ratcheting mechanism allows for effective and reliable operation of the parking brake.

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  • 16. 

    Excessive braking can cause which of the following brake conditions?

    • A.

      Warped brake rotors

    • B.

      Warped brake drums

    • C.

      Brake fade

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    Excessive braking can cause all of the mentioned brake conditions. When brakes are applied forcefully for extended periods of time, it generates excessive heat, which can lead to warped brake rotors and drums. This heat also causes brake fade, where the brakes lose their effectiveness due to the overheating of brake pads and fluid. Therefore, all of the mentioned brake conditions can occur as a result of excessive braking.

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  • 17. 

    Tech A says that disc brakes are used on the front of most vehicles built since the early 1970s and on the rear wheels of many vehicles. Tech B says that a disc brake operates by squeezing brake pads on both sides of a rotor or disc that is attached to the wheel. Who is correct?

    • A.

      Tech A

    • B.

      Tech B

    • C.

      Both Techs A and B

    • D.

      Neither Tech A nor B

    Correct Answer
    C. Both Techs A and B
    Explanation
    Both Techs A and B are correct. Disc brakes have been commonly used on the front of most vehicles built since the early 1970s, and they are also used on the rear wheels of many vehicles. A disc brake operates by squeezing brake pads on both sides of a rotor or disc that is attached to the wheel.

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  • 18. 

    Which of the following is MOST likely to be part of the hydraulic brake system?

    • A.

      Brake hoses

    • B.

      Wheel cylinder

    • C.

      Disc brake caliper

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    All of the options listed - brake hoses, wheel cylinder, and disc brake caliper - are commonly found components in a hydraulic brake system. Brake hoses are used to carry brake fluid between the master cylinder and the wheel cylinders or calipers. Wheel cylinders are responsible for applying the brake shoes to the brake drum, while disc brake calipers apply pressure to the brake pads against the brake disc to slow down or stop the vehicle. Therefore, it is most likely that all of these components would be part of a hydraulic brake system.

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  • 19. 

    The fire extinguishers we use in our class room and shop are designated as ___________ type.

    • A.

      DOT

    • B.

      Y2K

    • C.

      ABC

    • D.

      CBS

    Correct Answer
    C. ABC
    Explanation
    ABC Fire Extinguishers are designed to put out Type A (Wood Paper Trash), Type B (Oil, grease, flammable liquids) and Type C (electrical) fires.

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  • 20. 

    Locations you will find fire extinguishers in our class and shop include:

    • A.

      By the sink in the shop

    • B.

      By the front door of the class room

    • C.

      By the rear door of the shop

    • D.

      All the above

    Correct Answer
    D. All the above
    Explanation
    The correct answer is "All the above." This means that fire extinguishers can be found in all of the mentioned locations, which include by the sink in the shop, by the front door of the classroom, and by the rear door of the shop.

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  • 21. 

    What should you never try to put out a gas, grease or flammable liquid fire with?

    • A.

      An ABC Fire Extinguisher

    • B.

      H2O

    • C.

      Baking Soda

    • D.

      Dirt

    Correct Answer
    B. H2O
    Explanation
    Water should never be used to put out a gas, grease, or flammable liquid fire because water can spread the fire and cause it to become more dangerous. When water is applied to these types of fires, it can cause the flammable liquid to splash and spread, potentially causing the fire to grow larger and become more difficult to control. Additionally, water can react with certain chemicals and cause an explosion or release toxic fumes. Therefore, it is important to use the appropriate fire extinguisher, such as an ABC fire extinguisher, which is designed specifically for these types of fires.

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  • 22. 

    The electrical system on the 1931 Model A out in the shop is a ______________ ground system.

    • A.

      Negative

    • B.

      Earth

    • C.

      Above

    • D.

      Positive

    Correct Answer
    D. Positive
    Explanation
    The electrical system on the 1931 Model A is a positive ground system. This means that the positive terminal of the battery is connected to the car's chassis, while the negative terminal is connected to the electrical components. This was a common setup in older vehicles, where the positive terminal was grounded to prevent corrosion and improve electrical performance.

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  • 23. 

    Originally, the 1931 Model A came with a 6 volt ___________________.

    • A.

      Battery

    • B.

      Generator

    • C.

      Starter

    • D.

      All of the above.

    Correct Answer
    D. All of the above.
    Explanation
    The correct answer is "All of the above" because the 1931 Model A originally came with a 6 volt battery, generator, and starter. These components were necessary for the proper functioning of the vehicle's electrical system. The battery provided the initial power to start the engine, the generator produced electricity to charge the battery and power the vehicle's electrical systems, and the starter was responsible for initiating the engine's combustion process. Therefore, all three options are correct.

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  • 24. 

    The brakes on the Model A is a ___________________ brake system.

    • A.

      Hydraulically operated drum

    • B.

      Disc and Drum

    • C.

      Mechanically operated Drum

    • D.

      Snare drum

    Correct Answer
    C. Mechanically operated Drum
    Explanation
    The correct answer is "Mechanically operated Drum." This means that the brakes on the Model A are operated by mechanical mechanisms rather than hydraulic or disc systems. In a mechanically operated drum brake system, when the brake pedal is pressed, a mechanical linkage activates the brake shoes, causing them to press against the drum and create friction, which slows down or stops the vehicle. This type of brake system was commonly used in older vehicles like the Model A.

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  • 25. 

    Brake Fluid on the 1931 Model A should be changed _________________________. 

    • A.

      Every 4 years or 48,000 miles

    • B.

      Every 3 years or 36,000 miles

    • C.

      Every 4 years regardless of mileage due to moisture contamination.

    • D.

      Never, water can't get inside the actuating system.

    Correct Answer
    D. Never, water can't get inside the actuating system.
    Explanation
    There is no brake fluid used on the Model A. The system is operated by levers, rods, and mechanical actuators.

    Rate this question:

  • 26. 

    A standard lead-acid car battery when fully charged should read ___________ volts when checked with the engine not running with a voltmeter connected to the positive and negative battery terminals.

    • A.

      12

    • B.

      12.2 to 12.4

    • C.

      12.6 to 12.7

    • D.

      12.9

    Correct Answer
    C. 12.6 to 12.7
    Explanation
    When a standard lead-acid car battery is fully charged, it should read between 12.6 to 12.7 volts when checked with a voltmeter connected to the positive and negative battery terminals. This voltage range indicates that the battery is at its optimal charge level and is ready to provide power to the vehicle's electrical system.

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  • 27. 

    If you are testing the voltage at the battery with the vehicle running and observe a voltage of approximately 14 volts, the resulting diagnosis would be:  ____________________.

    • A.

      The voltage regulator is bad causing high voltage.

    • B.

      The voltage indicates the alternator is most likely operating correctly.

    • C.

      There is voltage back feeding through the system causing the battery voltage to increase.

    Correct Answer
    B. The voltage indicates the alternator is most likely operating correctly.
    Explanation
    A working charging system will put out close to 14 volts when the vehicle is running to maintain a charge in the battery and provide enough energy to run the lights and accessories.

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  • 28. 

    If a group of lights on your car all go out at one time, and your fuse isn't blown, the most likely reason would be:

    • A.

      The lights are wired in a parallel circuit, so if one light burns out, they all go out.

    • B.

      The lights are wired in a series-parallel circuit, so if one light burns out, they all go out.

    • C.

      The lights are wired in a series circuit, so if one light burns out, they all go out.

    • D.

      The lights are wired in a closed circuit, so if one light burns out, they all go out.

    Correct Answer
    C. The lights are wired in a series circuit, so if one light burns out, they all go out.
    Explanation
    The correct answer is that the lights are wired in a series circuit, so if one light burns out, they all go out. In a series circuit, the components are connected in a single path, so the current flows through each component one after the other. If one light burns out and breaks the circuit, the current cannot flow through the other lights, causing them all to go out.

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  • 29. 

    If one light in a group of lights on your car quits working, but no other lights in the same circuit are affected, the most reasonable explanation would be:

    • A.

      The lights are wired in a series circuit, so if one light burns out, the rest will remain illuminated.

    • B.

      The lights are wired in a parallel circuit, so if one light burns out, the rest will remain illuminated.

    • C.

      The lights are wired in an open circuit, so if one light burns out, the rest will remain illuminated.

    • D.

      The lights are wired in a main circuit, so if one light burns out, the rest will remain illuminated.

    Correct Answer
    B. The lights are wired in a parallel circuit, so if one light burns out, the rest will remain illuminated.
    Explanation
    The most reasonable explanation for the given answer is that the lights are wired in a parallel circuit. In a parallel circuit, each light has its own separate path to the power source. Therefore, if one light burns out, the current can still flow through the other lights, allowing them to remain illuminated. This is different from a series circuit, where the lights are connected in a chain, and if one light burns out, the circuit is broken and the other lights will not work.

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  • 30. 

    The proper Personal Protective Equipment to be worn when using an air wrench to remove lug nuts on a car would be:

    • A.

      Leather gloves

    • B.

      Leather apron

    • C.

      Safety glasses

    • D.

      All the above

    Correct Answer
    C. Safety glasses
    Explanation
    When using an air wrench to remove lug nuts on a car, safety glasses should be worn. This is because the air wrench can cause debris or fragments to fly off, posing a risk to the eyes. Safety glasses provide protection against such hazards and help prevent eye injuries. While leather gloves and a leather apron may be useful in other situations, they are not specifically necessary for using an air wrench on lug nuts.

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  • 31. 

    The type of screwdriver in the image is called a ________________ screwdriver.

    • A.

      Torx

    • B.

      Phillips

    • C.

      Cross

    • D.

      Double slot

    Correct Answer
    B. pHillips
    Explanation
    The type of screwdriver in the image is called a Phillips screwdriver. This type of screwdriver has a cross-shaped tip that is designed to fit into Phillips head screws, which have a corresponding cross-shaped recess. The Phillips screwdriver is commonly used in many applications, including electronics, woodworking, and automotive industries. It provides a secure grip and reduces the risk of cam-out, making it a popular choice for various screwdriving tasks.

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  • 32. 

    This is a ___________________ hammer, which comes in many sizes and is the most common hammer found in a mechanics tool box.

    • A.

      Round tip

    • B.

      Sledge

    • C.

      Ball peen

    • D.

      Dead blow

    Correct Answer
    C. Ball peen
    Explanation
    A ball peen hammer is a type of hammer that has a rounded end on one side and a flat end on the other. It is commonly used in mechanic's toolboxes because it is versatile and can be used for various tasks such as shaping metal, driving pins, and riveting. The round tip allows for more precise striking and shaping, making it a useful tool for mechanics.

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  • 33. 

    This common tool is found in most people's tool box. It is called a(n) _________________ wrench.

    • A.

      Pipe

    • B.

      Adjustable

    • C.

      Monkey

    • D.

      Sliding

    Correct Answer
    B. Adjustable
    Explanation
    An adjustable wrench is a common tool found in most people's toolboxes. It is a versatile tool that can be adjusted to fit different sizes of nuts and bolts. This makes it useful for a wide range of tasks, such as tightening or loosening various fasteners. The adjustable wrench has a movable jaw that can be adjusted by sliding it along a worm gear. This allows the user to easily change the wrench's size to fit different nuts or bolts.

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  • 34. 

    This tool is often referred to as ___________________ pliers, but really only the pliers originally made by this company have the right to use that name.

    • A.

      Channellock

    • B.

      Vice Grip

    • C.

      Crescent

    • D.

      Craftsman

    Correct Answer
    B. Vice Grip
    Explanation
    The correct answer is "Vice Grip" because the question is referring to a specific type of pliers that is commonly known by this name. Although other companies may produce similar pliers, only the original company, Vice Grip, has the right to use that name.

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  • 35. 

    This meter measures Volts, Ohms, Amps, Diodes, and does so on DC or AC electrical circuits. It is called a ________________________________.

    • A.

      DMM or Digital Multi-Meter

    • B.

      DVOM or Digital Volt Ohm Meter

    • C.

      DCT or Digital Circuit Tester

    • D.

      ESCT or Electrical SCan Tool

    Correct Answer
    A. DMM or Digital Multi-Meter
    Explanation
    This meter is capable of measuring various electrical quantities such as volts, ohms, amps, and diodes. It can be used for both DC and AC electrical circuits. The term "DMM" or "Digital Multi-Meter" accurately describes this device as it is a digital instrument that can measure multiple electrical parameters.

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  • 36. 

    This is called a _____________________ wrench, and comes in multiple sizes, both metric (10, 12, 14, 17 mm, etc.) and fractional (1/2, 9/16, 3/4 inch, etc.)

    • A.

      Open/Closed End

    • B.

      Combination

    • C.

      Box end

    • D.

      Multi-

    Correct Answer
    B. Combination
    Explanation
    This type of wrench is called a combination wrench because it has both an open end and a closed end. The open end is used for quick tightening or loosening of nuts and bolts, while the closed end provides a more secure grip on the fastener. Combination wrenches are available in various sizes, both metric and fractional, to accommodate different types of nuts and bolts.

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  • 37. 

    What is this tool called?

    • A.

      A ratchet wrench

    • B.

      An adjustable wrench

    • C.

      A Breaker bar

    • D.

      A torque wrench

    Correct Answer
    D. A torque wrench
    Explanation
    A torque wrench is a tool used to apply a specific amount of torque or rotational force to a fastener, such as a nut or bolt. It helps ensure that the fastener is tightened to the correct specifications, preventing over-tightening or under-tightening. Unlike the other options listed, a torque wrench is specifically designed for this purpose and has a mechanism that allows the user to set the desired torque level. This makes it a more precise and accurate tool for tasks that require specific torque settings, such as automotive or mechanical work.

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  • 38. 

    This is a set of _______________ .

    • A.

      Hex key wrenches

    • B.

      Allen Wrenches

    • C.

      Both names are correct

    • D.

      Only answer A

    • E.

      Only answer B

    Correct Answer
    C. Both names are correct
    Explanation
    Both names, Hex key wrenches and Allen Wrenches, are correct because they refer to the same type of tool. These wrenches have a hexagonal-shaped head and are commonly used to tighten or loosen bolts and screws with hexagonal sockets. The term "Hex key wrenches" is more generic, while "Allen Wrenches" is a specific brand name that has become synonymous with this type of tool. Therefore, both names can be used interchangeably to describe this set of wrenches.

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  • 39. 

    The best description of the tool in the picture would be:

    • A.

      Deep well sockets

    • B.

      Spark plug sockets

    • C.

      6 point sockets

    • D.

      Impact sockets

    Correct Answer
    B. Spark plug sockets
    Explanation
    The tool in the picture is most likely spark plug sockets. This can be inferred from the fact that spark plug sockets are specifically designed to fit and remove spark plugs from engines. The tool shown in the picture appears to have a narrow opening, which is characteristic of spark plug sockets. Additionally, spark plug sockets are often labeled with the size of the spark plug they are intended for, and the tool in the picture does not have any such labels.

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  • 40. 

    If you happen upon a spill on the floor, It is your responsibility to do the safe thing for yourself and others and clean it up before someone is injured by slipping and falling.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that if you come across a spill on the floor, it is your responsibility to ensure the safety of yourself and others. Cleaning up the spill promptly is necessary to prevent anyone from slipping and falling, which could potentially lead to injuries. By taking the initiative to clean up the spill, you are actively preventing accidents and promoting a safe environment.

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  • 41. 

    It's OK to drape cords and hoses across a walkway, as long as they are brightly colored so people will see them and not trip and fall.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Draping cords and hoses across a walkway, even if they are brightly colored, is not safe because it can still pose a tripping hazard. It is important to keep walkways clear and free from any obstacles to prevent accidents and ensure the safety of individuals. Therefore, the statement is false.

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  • 42. 

    Of the following, which are a(n) approved item(s) to wear as a Personal Protective Equipment when using a drill press, grinder, or sander?

    • A.

      Cotton work gloves

    • B.

      Vinyl work gloves

    • C.

      Leather work gloves

    • D.

      All of the above are acceptable

    • E.

      None of the above are acceptable

    Correct Answer
    E. None of the above are acceptable
    Explanation
    Never wear gloves while working with rotating equipment. Your hands could get caught and pulled into the machinery.

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  • 43. 

    If a fuse is blown and you don't have a replacement, it is OK to make a temporary connection for a week or two with a paper clip, wire , or tin foil.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Making a temporary connection with a paper clip, wire, or tin foil is not safe if a fuse is blown and you don't have a replacement. Fuses are designed to protect electrical circuits from overloading and prevent fires. Using makeshift materials like paper clips, wire, or tin foil can cause the circuit to overload, leading to electrical damage, fire hazards, or even electrocution. It is always recommended to use the correct replacement fuse or consult a professional electrician to ensure safety.

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  • 44. 

    In the event of a power outage, one should always turn off and/or unplug any electrical equipment they were using, so an unexpected restart doesn't cause injury.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    During a power outage, it is important to turn off and unplug electrical equipment to prevent any potential harm or injury. When the power is restored, there can be a sudden surge or fluctuation in electricity, which can damage the equipment or cause injury if someone is in contact with it. Therefore, it is advisable to turn off and unplug electrical devices during a power outage to ensure safety.

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  • 45. 

    If you need to research information to diagnose a problem, or learn the steps to performing a repair, where would you look?

    • A.

      Alldata

    • B.

      Textbook

    • C.

      Blogs

    • D.

      YouTube

    • E.

      Google

    • F.

      You could use all of the above, but try to find several sources that are in agreement before you arrive at a conclusion, and proceed to verify the problem is the same.

    Correct Answer
    F. You could use all of the above, but try to find several sources that are in agreement before you arrive at a conclusion, and proceed to verify the problem is the same.
    Explanation
    The answer suggests that when researching information to diagnose a problem or learn the steps to performing a repair, it is recommended to use multiple sources such as Alldata, textbook, blogs, YouTube, and Google. However, it is important to find several sources that are in agreement before arriving at a conclusion. Additionally, it is advised to verify that the problem is the same before proceeding with any repair.

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  • 46. 

    All of the following are common components of a modern charging system EXCEPT:

    • A.

      Serpentine Drive Belt

    • B.

      Voltage regulator or controller

    • C.

      Alternator

    • D.

      Pulse Width Modulator

    • E.

      Charging System Relay

    • F.

      Fusible Link or Mega Fuse

    • G.

      Battery, cables, and wiring harness

    Correct Answer
    D. Pulse Width Modulator
    Explanation
    A pulse width modulator is not a common component of a modern charging system. The other components listed are commonly found in a charging system. A serpentine drive belt is responsible for driving the alternator, voltage regulator or controller regulates the voltage output of the alternator, alternator generates electrical power, charging system relay controls the flow of electricity, fusible link or mega fuse protects the system from overload, and the battery, cables, and wiring harness connect all the components together. A pulse width modulator is typically used in other systems such as motor control or power electronics, but not in a charging system.

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  • 47. 

    Battery cables to jump start a vehicle should be connected in this order:

    • A.

      Positive Cable to good battery; Positive Cable to weak battery; Negative cable to good battery; Negative cable to bare metal away from battery on car with weak battery.

    • B.

      Positive Cable to Weak battery; Positive Cable to good battery; Negative cable to good battery; Negative cable to bare metal away from battery on car with weak battery.

    • C.

      Positive Cable to Weak battery; Positive Cable to good battery; Negative cable to bare metal away from battery on car with weak battery. Negative cable to good battery;

    • D.

      Negative cable to good battery; Negative cable to bare metal away from battery on car with weak battery; Positive Cable to good battery; Positive Cable to weak battery

    Correct Answer
    B. Positive Cable to Weak battery; Positive Cable to good battery; Negative cable to good battery; Negative cable to bare metal away from battery on car with weak battery.
    Explanation
    The correct order for connecting battery cables to jump start a vehicle is as follows: First, connect the positive cable to the weak battery. Then, connect the positive cable to the good battery. Next, connect the negative cable to the good battery. Finally, connect the negative cable to bare metal away from the battery on the car with the weak battery. This order ensures that the electrical current flows properly and reduces the risk of sparks or electrical damage.

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  • 48. 

    For a fire to exist, it needs __________, heat, and fuel.

    • A.

      Carbon Dioxide

    • B.

      Carbon Monoxide

    • C.

      Hydrogen

    • D.

      Oxygen

    Correct Answer
    D. Oxygen
    Explanation
    A fire needs three elements to exist: fuel, heat, and oxygen. Fuel provides the material that can burn, heat is the energy required to start and sustain the combustion process, and oxygen acts as the oxidizer that allows the fuel to burn. Without oxygen, a fire cannot occur because it is necessary for the chemical reaction of combustion to take place. Carbon dioxide, carbon monoxide, and hydrogen are not sufficient to sustain a fire on their own.

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  • 49. 

    Technician A says carbon monoxide is a colorless, odorless, and poisonous gas. Technician B says proper ventilation is required when running a vehicle in a garage. Who is correct?

    • A.

      Technician A

    • B.

      Technician B

    • C.

      Both Technician A & Technician B

    • D.

      Neither Technician A or Technician B

    Correct Answer
    C. Both Technician A & Technician B
    Explanation
    Both Technician A and Technician B are correct. Carbon monoxide is indeed a colorless, odorless, and poisonous gas. Proper ventilation is also necessary when running a vehicle in a garage to prevent the buildup of carbon monoxide, which can be deadly.

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  • 50. 

    This federal agency was created to prevent work-related deaths, illnesses, and injuries.

    • A.

      OSHA (Occupational Safety & Health Administration)

    • B.

      IIHS (Insurance Institute for Highway Safety)

    • C.

      National Institute fro Automotive Service Excellence (ASE)

    • D.

      Department of Workplace Safety (DWS)

    Correct Answer
    A. OSHA (Occupational Safety & Health Administration)
    Explanation
    The correct answer is OSHA (Occupational Safety & Health Administration). OSHA is a federal agency that was created to prevent work-related deaths, illnesses, and injuries. They set and enforce standards for workplace safety and provide training, education, and assistance to employers and workers to ensure a safe and healthy work environment.

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Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 24, 2018
    Quiz Created by
    Carl Schlegel

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