Brakes And Braking Systems! Trivia Questions Quiz

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.

Wheel speed sensors are indeed responsible for sending electric signals to the electronic brake control module (EBCM) in order to determine the speed and rate of deceleration of each wheel. This information is crucial for the EBCM to apply the appropriate amount of brake pressure to each wheel during braking, ensuring optimal control and preventing wheel lock-up. Therefore, the statement that wheel speed sensors send electric signals to the EBCM to determine wheel speed and rate of deceleration is true.

Some anti-lock braking systems do require a scan tool that connects to the electronic brake control module or power train control module to read the fault codes. This is because the fault codes are stored in the module's memory and can only be accessed and interpreted using a scan tool. The scan tool helps in diagnosing and troubleshooting any issues with the anti-lock braking system by retrieving and analyzing the fault codes.

Some traction control systems have a function switch that allows the driver to temporarily deactivate the system. This switch is typically located on the dashboard or center console of the vehicle. By deactivating the traction control system, the driver can have more control over the vehicle's acceleration and tire spin, which can be useful in certain situations such as off-road driving or when stuck in snow or mud.

Many brake hoses use banjo fittings to connect the hose to the wheel unit. Banjo fittings are commonly used in automotive brake systems due to their ability to provide a secure and leak-free connection. The design of a banjo fitting includes a hollow bolt with a hole through the side and a banjo bolt that passes through the hole. The brake hose is then attached to the banjo bolt using a fitting, ensuring a tight seal. This design allows for flexibility and ease of installation, making banjo fittings a popular choice in brake systems.

If the yellow warning lamp is not illuminated and the brakes are not functioning properly on a vehicle with an electronic brake control module, it suggests that the problem is not being monitored or detected by the module. This means that the module is not aware of the issue and cannot provide any warning or assistance. Therefore, the correct answer is True.

A typical brake pedal inspection includes checking the brake pedal height, which ensures that it is at the correct level for easy reach and operation. Brake pedal free play is also inspected, which refers to the amount of movement or play in the pedal before the brakes start to engage. Lastly, brake pedal travel is examined, which measures the distance the pedal travels when applying the brakes. Therefore, all of the above options are included in a typical brake pedal inspection.

Brake hoses should never be pinched, kinked, or bent tighter than a specific radius. These actions can restrict the flow of brake fluid and affect the performance of the braking system. Pinching or kinking the brake hoses can lead to brake failure and compromise the safety of the vehicle. Similarly, bending the hoses tighter than the recommended radius can cause damage to the hose and result in leaks or loss of brake fluid. Therefore, it is important to ensure that the brake hoses are not subjected to any of these conditions.

The tone wheel used on an anti-lock braking system's wheel speed sensors should be checked for broken, damaged, and missing teeth. This is because any of these issues can affect the accuracy and reliability of the wheel speed sensor, which in turn can affect the performance of the anti-lock braking system. Therefore, it is important to inspect the tone wheel for all of these potential problems.

The dust shield will help is keep all of these contaminates from the disc braking system.

Composition of the lining effects the coefficient of friction. Brakes do lose their efficiency when they get hot.

The brake warning light can be turned on by multiple factors. When the parking brake is engaged, it can activate the brake warning light as a reminder to release it before driving. Additionally, if the brake fluid level is low, it can trigger the warning light to indicate a potential issue with the brake system. Lastly, if there is unequal pressure in the brake system, it can also cause the warning light to illuminate, signaling a problem that needs attention. Therefore, all of the mentioned factors can individually or collectively turn on the brake warning light.

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

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

All of the variables mentioned in the options, namely input force, working pressure, and output force, are related to pressure and force in a hydraulic system. Input force refers to the force applied to the hydraulic system, working pressure is the pressure exerted by the fluid within the system, and output force is the force generated by the system. Thus, all of these variables are interconnected and play a role in determining the pressure and force in a hydraulic system.

To ensure that a leak in one brake circuit will not affect the other circuit, master cylinder reservoirs have two separate chambers. This is true because having two separate chambers allows for the separation of the brake fluid for each circuit. In the event of a leak in one circuit, the other circuit will still have an adequate amount of brake fluid to function properly, ensuring the safety of the vehicle.

A special tool is required when retracting a piston on a caliper with an integrated parking brake.

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

All of the options listed are main components of a typical hydraulic brake system. The brake pedal is the input device that the driver uses to apply pressure to the brakes. Brake fluid is the medium that transfers the pressure from the brake pedal to the brakes themselves. The master cylinder is responsible for generating and regulating the hydraulic pressure in the system. Therefore, all of these components are essential for the proper functioning of a hydraulic brake system.

A brake shoe has all of these.

An electronic brake control module is responsible for controlling the braking system in a vehicle. It is likely to contain electronic circuitry, which is necessary for processing and controlling the brake signals. The module may also have computer memory to store important data and instructions related to the brake control. Additionally, it is expected to have output drivers that transmit the control signals to the braking system components. Therefore, all of the given options - electronic circuitry, computer memory, and output drivers - are likely to be present in an electronic brake control module.

Doubled-walled steel lines and rubber hoses are used to carry brake fluid from the master cylinder to the brake units. This combination of materials provides the necessary durability and flexibility to withstand the high pressure and extreme temperatures experienced in the braking system. The double-walled steel lines offer strength and resistance to corrosion, while the rubber hoses allow for flexibility and absorb vibrations. Together, they ensure the safe and efficient transfer of brake fluid throughout the braking system.

All of the options mentioned (brake hoses, wheel cylinder, and disc brake caliper) are commonly found components in a hydraulic brake system. The brake hoses are responsible for carrying the brake fluid to the wheel cylinders and calipers. The wheel cylinder is located in the drum brake system and applies pressure to the brake shoes, causing them to press against the brake drum. The disc brake caliper, on the other hand, applies pressure to the brake pads, causing them to clamp onto the brake rotor. Therefore, all of these components are essential parts of a hydraulic brake system.

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

Wheel speed sensors should be checked for open circuits, grounds, and high resistance using a DVOM (Digital Volt-Ohm Meter). An open circuit in the sensor wiring can cause the sensor to malfunction and not provide accurate wheel speed information. A ground issue can also affect the sensor's performance. High resistance in the sensor circuit can lead to inaccurate readings or complete failure of the sensor. Therefore, all of the mentioned options should be checked to ensure the proper functioning of the wheel speed sensors.

All of the options listed (drum brakes, disc brakes, and air brakes) are types of frictional brake systems that are used on vehicles today. Drum brakes and disc brakes are commonly used on cars and motorcycles, while air brakes are typically used on larger vehicles such as trucks and buses. Each type of brake system has its own advantages and disadvantages, but all three are widely used in the automotive industry to provide reliable and efficient braking performance.

Both of these are options for brake pad wear indication.

The brake switch is responsible for sending an electronic signal to both the brake lights and the electronic brake control module. This signal is crucial for activating the brake lights when the brake pedal is pressed, and also for providing input to the electronic brake control module to assist with braking functions such as anti-lock braking system (ABS) and traction control. Therefore, the correct answer is Both A and B.

Hold down springs hold the shoes to the backing plate.

The amount of friction between two moving faces in contact with each other is expressed as a ratio and is called the coefficient of friction. This term is used to quantify the frictional force between two surfaces and is a dimensionless value. It represents the relationship between the force required to move one surface over the other and the normal force pressing the surfaces together. The coefficient of friction is an important concept in physics and engineering as it helps in understanding and predicting the behavior of objects in contact with each other.

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

Rotating calipers do not exist.

The hydraulic control module executes the commands of the anti-lock braking system control module. This module is responsible for controlling the hydraulic pressure in the brake system, which is crucial for the proper functioning of the anti-lock braking system. The power train control module and transmission control module do not have direct control over the anti-lock braking system, making them incorrect options.

All of the above methods can be used to determine if brake fluid should be flushed. A test strip can be used to check the condition of the brake fluid by measuring its moisture content and acidity. The DVOM-galvanic reaction test involves measuring the voltage produced when the brake fluid comes into contact with a metal probe, which indicates the level of contamination. Finally, time and mileage can also be used as indicators, as brake fluid should typically be flushed every 2-3 years or every 30,000-60,000 miles, whichever comes first.

Water dissipation is an advantage of the disc braking system.

Two actions comprise the self energizing, duo-servo drum brake system.

Which way does a wheel turn when traveling forward? The leading shoe touches the drum first.

Wheel cylinders typically contain both one or two pistons and a spring and expander set. The pistons are responsible for applying hydraulic pressure to the brake shoes, which then press against the brake drum to slow down or stop the wheel. The spring and expander set help to retract the brake shoes when the brake pedal is released, allowing the wheel to rotate freely. Therefore, both options A and B are correct.

Banjo-type fittings typically include a banjo fitting, which is a hollow, cylindrical piece with holes on either end for fluid flow. They also include a banjo bolt, which is a threaded bolt that secures the banjo fitting in place. Additionally, two copper or aluminum washers are included to create a tight seal between the banjo fitting, banjo bolt, and the connecting components. Therefore, the correct answer is "All of the above" as all three components are typically included in banjo-type fittings.

Both Techs A and B are correct. If none of the brake lights illuminate when depressing the brake pedal, the problem could be caused by either the fuse or bulbs (as stated by Tech A) or the feed wire or ground (as stated by Tech B). Both possibilities should be checked in order to identify and resolve the issue.

Tech B is correct. A cracked brake hose that is not leaking may still be compromised and could potentially fail in the future, leading to a brake failure. On the other hand, a brake hose with a blister is a clear sign of damage and should be replaced immediately to ensure the safety and proper functioning of the braking system. Therefore, both Techs A and B are not correct, and only Tech B is giving the correct advice.

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

A substantial leak in the hydraulic system will prevent enough pressure from building to exert the necessary braking force. The hydraulic system plays a crucial role in transmitting force from the brake pedal to the brakes themselves. It uses hydraulic fluid to transfer pressure and amplify the force applied by the driver. If there is a leak in the system, the hydraulic fluid will escape and the pressure required for effective braking will not be achieved. As a result, the necessary braking force will not be exerted, compromising the vehicle's ability to stop efficiently.

Starting all fasteners by hand is best practice. Some hubcaps are held in place by the lug nuts.

Bearings that are serviceable should always be serviced when doing a brake job. Non-serviceable bearings should be inspected for excess play during maintenance inspections and brake jobs.

The correct answer is "All of the above." This means that all three sensors mentioned - the yaw sensor, steering angle sensor, and roll-rate sensor - are typical sensors used by the electronic stability control system. These sensors are essential in providing data and feedback to the system, allowing it to monitor and adjust the vehicle's stability and traction in various driving conditions.

Brake fluid used in automobile brake systems needs to have a high boiling point to prevent it from vaporizing under high temperatures, which could cause brake failure. It also needs to have a low freezing point to ensure that it remains in a liquid state even in cold temperatures. Additionally, brake fluid is hygroscopic, meaning it has a tendency to absorb moisture from the air. This is important because moisture can cause the brake fluid to become less effective and potentially lead to brake failure. Therefore, all of the given options are properties of typical brake fluid used in automobile brake systems.

Both a DVOM (Digital Volt-Ohm Meter) and an oscilloscope can be used to diagnose an anti-lock braking system (ABS) fault. A DVOM is used to measure voltage, resistance, and continuity, which can help diagnose electrical issues in the ABS system. An oscilloscope, on the other hand, can display waveforms and voltage patterns, allowing technicians to analyze signals from ABS sensors and identify any abnormalities. By using both tools, technicians can effectively diagnose and troubleshoot ABS faults.

Fixed calipers are rigidly bolted in place. Sliding calipers do only have one piston.

Both Techs A and B are correct. The wheel speed sensor operation can indeed be tested with a DVOM (Digital Volt-Ohm Meter) as well as checked with an oscilloscope. A DVOM can measure the voltage output of the sensor, while an oscilloscope can provide a visual representation of the sensor's waveform. Both methods can be used to diagnose any issues with the wheel speed sensor.