Rulebook Test - Fi 2020

The suspension system in a vehicle is responsible for absorbing the vibrations and impact forces that occur as the vehicle travels over uneven road surfaces. This is important for providing a smooth and comfortable ride for the occupants of the vehicle. By absorbing these forces, the suspension system helps to protect the vehicle's components from damage and prevents excessive wear and tear. Additionally, a properly functioning suspension system ensures that the tires maintain contact with the road surface, improving traction and overall vehicle stability.

Commercial liquid fuels, such as gasoline, diesel, and jet fuel, are indeed derived from natural petroleum or crude oil. Crude oil is processed in refineries through various methods, such as distillation and cracking, to separate and refine different components, which are then used as fuels. These fuels play a crucial role in transportation, power generation, and industrial processes. Therefore, the statement is true.

The minimum angle between the main hoop and the main hoop braces should be 30 degrees. This angle is necessary to provide sufficient support and stability to the structure. A smaller angle may result in a weaker connection and increased risk of collapse or failure.

The vehicle must be equipped with a fully operational suspension system in order to ensure a smooth and comfortable ride. The minimum wheel travel required for this is 50 mm. This means that the wheels should be able to move up and down by at least 50 mm to absorb any shocks or bumps on the road. This will help in maintaining stability, improving traction, and reducing the impact on the vehicle and its occupants.

The maximum allowable steering system free play is 7 degrees. This means that there should be no more than 7 degrees of movement or play in the steering system before it begins to respond and turn the wheels. This is important for maintaining control and responsiveness in the steering system, as excessive free play can lead to a delay in steering response and potentially unsafe driving conditions.

When the top of the wheel is tilted outward, it is called positive camber. This means that the top of the wheel is positioned farther away from the vehicle's centerline than the bottom of the wheel. Positive camber can be beneficial in certain situations, such as improving stability during cornering or providing better grip in off-road conditions. However, excessive positive camber can lead to uneven tire wear and reduced handling performance.

A brake pedal should be able to withstand a significant amount of force without any failure in order to effectively stop a vehicle. 2000 N is the highest value among the given options, indicating that it is the most appropriate answer. This force is necessary to ensure that the brake pedal can handle the pressure exerted on it during emergency braking situations or when a vehicle is traveling at high speeds.

The correct answer is "All of the above". This means that the Impact Attenuator must meet all the given conditions: it must be installed forward of the Front Bulkhead and designed with a closed front section, it must be at least 200 mm long with its length oriented along the fore/aft axis of the Frame, and it must not be able to penetrate the Front Bulkhead in the event of an impact.

The minimum static ground clearance of any portion of the vehicle must be 30 mm. This means that the distance between the lowest point of the vehicle and the ground should be at least 30 mm. This is important to ensure that the vehicle can safely pass over bumps, speed bumps, and other obstacles without causing damage to the undercarriage or other parts of the vehicle. A higher ground clearance is generally preferred for off-road vehicles or in areas with rough terrain.

The minimum width of the scatter shield must be three times the width of the chain. This is because the scatter shield is designed to provide protection and prevent any debris or particles from scattering outwards. By having a width that is three times the width of the chain, it ensures that there is enough coverage to effectively contain any potential scattering.

The color of the jack point should be orange. This is because the question is asking for the color of the jack point based on the color of the vehicle. Out of the given options, orange is the only color mentioned that could potentially match the color of the vehicle. Therefore, orange is the correct answer.

It is not permissible to fabricate the Front Hoop from more than one piece of tubing.

The correct answer is "opens at 20° before T.D.C. and closes at 35° after B.D.C." In a four-stroke Diesel engine, the intake valve opens before the piston reaches top dead center (T.D.C.) to allow air or fuel-air mixture to enter the combustion chamber. It closes after the piston reaches bottom dead center (B.D.C.) to seal the combustion chamber and allow compression to occur. This timing ensures efficient intake and compression strokes for proper engine operation.

The gap between restraint and the back of the driver's helmet must be 25 mm. This is important for ensuring the safety of the driver by providing adequate space between the restraint and the helmet. A larger gap could result in the helmet being pushed forward during an impact, potentially causing injury to the driver's head and neck. Conversely, a smaller gap may not provide enough space for the helmet to move freely and absorb the impact effectively. Therefore, a 25 mm gap is the optimal requirement for maintaining driver safety.

The minimum wall thickness for Front and Main Roll Hoops, Shoulder Harness Mounting Bar must be 2.0 mm. This is the specified measurement that ensures the necessary strength and durability for these components. A wall thickness of 2.0 mm is deemed sufficient to withstand the required loads and provide adequate protection and support.

The front hoop must not be more than 250 mm forward of the steering wheel in order to ensure proper safety and functionality. This distance is carefully determined to maintain the structural integrity of the vehicle and protect the driver in the event of a collision or rollover. If the front hoop is positioned too far forward, it could compromise the effectiveness of the safety measures and increase the risk of injury. Therefore, it is crucial to adhere to this limit to ensure the overall safety of the vehicle.

The restrictor must be circular with a maximum diameter of 20 mm because it is the size that meets the requirements. A diameter of 19 mm would be too small, 25 mm would exceed the maximum limit, and 9 mm is not mentioned as an option. Therefore, the correct answer is 20 mm.

The correct answer is Steel because it is a commonly used material for manufacturing roll hoops in vehicles. Steel is known for its strength and durability, making it suitable for providing the necessary protection in case of a rollover accident. It is also more cost-effective compared to other options like carbon fiber. While other materials like aluminum and carbon fiber can also be used, steel is often preferred due to its favorable combination of strength, cost, and availability.

The minimum gap between the helmet and the straight bar should be 2 inches. This is important for safety reasons, as it allows for proper clearance and reduces the risk of injury in case of impact or sudden movements. A larger gap could result in the helmet hitting the bar, potentially causing harm to the wearer. Therefore, a minimum gap of 2 inches is necessary to ensure adequate protection.

The question asks for the minimum shining surface of the brake light, but none of the given options provide a suitable answer. Therefore, the correct answer is "none of the above."

The maximum volume of the fuel tank should be 7 liters.

The power actually developed inside the engine cylinder is called indicated power. This term refers to the power output of the engine as measured by an indicator device, which records the pressure inside the cylinder throughout the engine's operating cycle. Indicated power is an important measurement in evaluating the performance and efficiency of an engine. Brake power, on the other hand, refers to the power output of the engine at the crankshaft, after accounting for mechanical losses. Frictional power represents the power lost due to friction within the engine components. None of these options accurately describe the power developed inside the engine cylinder.

A cycle consisting of one constant pressure, one constant volume, and two isentropic processes is known as the diesel cycle. In this cycle, the air is compressed adiabatically, followed by the injection of fuel and combustion at constant pressure. The expansion of the combustion gases occurs adiabatically, followed by the exhaust stroke at constant volume. This cycle is commonly used in diesel engines, where the combustion of fuel occurs at constant pressure, resulting in higher efficiency compared to other cycles.

The minimum length of the jack point should be 300 mm (12 inches). This length is necessary to ensure that the jack can properly support and lift the vehicle without causing any damage or instability. A shorter length may not provide enough stability and could potentially lead to accidents or damage to the vehicle.

The correct answer for this question is 50 points. This suggests that in the context of DFMEA (Design Failure Mode and Effects Analysis), 50 points are assigned to define points. However, without further information, it is unclear what specifically these points represent or how they are used in the DFMEA process.