RRHS Auto Exam: Trivia Quiz!

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

Both of these are options for brake pad wear indication.

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.

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.

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.

The torque wrench ensures each lug is tightened exactly as much as each other lug.

If found to be damaged, wheel studs and lugs should never be reused or repaired.

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.

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.

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.

Always use a star pattern to ensure the wheel is uniformly tightened to the hub.

Each of these are examples of how a stud could be damaged.

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.

The rotor would need to be replaced in both of these circumstances.

Slotted and drilled will help with both heat removal and water removal, but it reduces the friction area of the pad with the rotor.

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.

Excessive thickness variation will cause surging and may lead to a shimmy in the steering wheel.

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.

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.

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.

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.

Both of these will cause brake pedal pulsation, but when the ABS operates, it's considered normal.

Water dissipation is an advantage of the disc braking system.

Axel grease is not used on braking components.

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.

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.

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.

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.

Disc rotors are available in both a hub and hubless-style configuration.

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.

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.

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.

There is no brake fluid used on the Model A. The system is operated by levers, rods, and mechanical actuators.

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.

Never wear gloves while working with rotating equipment. Your hands could get caught and pulled into the machinery.