Hvc Pre-virtual: Set A

Titanium and magnesium based materials are not commonly used for attaching brackets on primary structures. Instead, materials like aluminum or steel are typically used for this purpose due to their strength and durability. Therefore, the given statement is false.

The statement is false because once a vehicle has been approved, the wing location cannot be adjusted.

The number 15 in the given tyre nomenclature P 200/65 R 15 85 N represents the rim diameter. The rim diameter refers to the size of the wheel that the tyre is designed to fit. In this case, the tyre is intended for a wheel with a diameter of 15 inches.

The smaller track width of the vehicle (front or rear) should not be less than 75% of the larger track. This is important for maintaining stability and balance while driving. If the smaller track width is too narrow compared to the larger track, it can lead to issues such as poor handling, increased risk of tipping over, and uneven weight distribution. Therefore, it is crucial to ensure that the smaller track width is at least 75% of the larger track to ensure safe and stable driving conditions.

The rule used for the driver's restraint system is the 95th percentile male. This means that the design and specifications of the restraint system are based on the body dimensions and characteristics of the 95th percentile male, which represents a larger and heavier individual. By using this percentile, the restraint system can accommodate a wide range of body sizes and provide optimal safety and comfort for the majority of male drivers.

The correct answer is excluding the weight of the driver because the given statement clearly states that the weight of the vehicle should not exceed more than 250 kg. This implies that the weight limit does not include the weight of the driver. Therefore, the weight of the driver should be excluded when determining if the vehicle meets the weight requirement.

The upper portion of the main hoop and main hoop bracing are considered to be part of the major structure of the frame. This means that they play a significant role in providing strength and stability to the frame. Therefore, the statement is true.

The minimum ground clearance refers to the distance between the lowest point of the vehicle and the ground. In this case, the correct answer is 50.8 mm, indicating that the vehicle has a ground clearance of 50.8 millimeters. This means that the lowest point of the vehicle is 50.8 mm above the ground, providing a certain level of protection against obstacles and uneven terrain.

The correct answer is 30 degrees because it is the minimum angle required for the included angle formed by the Main Hoop and the Main Hoop braces. This angle is important as it determines the stability and strength of the structure. If the angle is less than 30 degrees, it may compromise the integrity of the Main Hoop and the Main Hoop braces, leading to potential structural failure. Therefore, 30 degrees is the minimum angle necessary to ensure the safety and effectiveness of the Main Hoop and its braces.

This statement is true because it is important for the driver compartment to be completely sealed off from the front of the vehicle to ensure the safety of the driver. Openings in the bodywork could allow debris or objects to enter the driver compartment, potentially causing injury or distraction to the driver. The roll bar main hoop and firewall act as barriers to prevent any openings and maintain the integrity of the driver compartment.

The side impact zone extends 350 mm above the ground. This means that the area on the side of the vehicle that is designed to absorb impact in the event of a side collision extends 350 mm vertically from the top of the floor. This height is important for ensuring the safety of occupants by providing sufficient protection in the event of a side impact.

The front bulkhead must contain a support system because it is responsible for maintaining the structural integrity of the front section of a vehicle or a building. Without a support system, the front bulkhead would be weak and prone to collapsing or failing under pressure or stress. Therefore, it is necessary to have a support system in place to ensure the stability and safety of the front bulkhead.

The statement "The roll hoops must be braced" is true. Roll hoops are structural components in vehicles that provide protection in the event of a rollover. Bracing the roll hoops ensures that they are reinforced and can effectively withstand the forces exerted during a rollover. Without proper bracing, the roll hoops may not be able to provide adequate protection, potentially compromising the safety of the vehicle occupants. Therefore, it is essential to brace the roll hoops to ensure their effectiveness in preventing injuries during rollover accidents.

The letter "N" in the given tyre nomenclature stands for the speed index. The speed index indicates the maximum speed at which the tyre can safely operate. Each letter corresponds to a specific speed rating, with "N" typically representing a speed rating of up to 87 mph.

Suspension travel refers to the distance that a suspension system can move between its topmost and bottommost positions. It measures the range of motion that the suspension can provide, allowing the wheels to move up and down to absorb bumps and maintain contact with the road surface. This range of travel is important for ensuring a smooth and controlled ride, as well as for maintaining traction and stability.

The correct answer is b. Open wheel and open cockpit. This means that the vehicle has exposed wheels and an open cockpit, indicating that it is likely a formula racing car or a similar type of vehicle.

The correct answer is "Time taken by driver to get out of the vehicle from seating position." This option accurately describes egress time as the time it takes for the driver to exit the vehicle starting from their seating position. The other options are not relevant to the concept of egress time as they refer to different actions or positions within the vehicle.

The statement is false because the topmost surface of the Front Hoop does not need to be lower than the top of the steering wheel in any angular position. This means that the steering wheel can be higher than the Front Hoop in certain positions and it would still be acceptable.

The minimum wheel base allowed is 1525 mm. This means that any vehicle must have a distance of at least 1525 mm between the centers of its front and rear wheels. This measurement is important for determining the stability and handling of a vehicle, as a longer wheel base generally provides better stability and a smoother ride.

The portion of the Main Roll Hoop that lies above its attachment point to the Major Structure of the Frame must be within 10 degrees of the vertical. This means that the angle between the Main Roll Hoop and the vertical line should not exceed 10 degrees.

The correct answer is 300 mm to 350 mm. This range ensures that the side impact members are at an appropriate height when the driver is seated. This is important for the safety of the driver in the event of a side impact collision. The range allows for variations in driver height and seating position, while still providing effective protection.

The correct answer is Maximum 5 sec because the egress time refers to the time it takes for someone to exit a particular area or location. In this case, the maximum allowable time for egress is 5 seconds, meaning that individuals should be able to exit the area within this time frame. This requirement may be in place for safety reasons, such as in emergency situations where a quick evacuation is necessary.

Heat insulation is provided to prevent the driver from coming into contact with any component that has a temperature greater than 60°C. This is important because temperatures above 60°C can cause burns or discomfort to the driver. By insulating these components, the heat is contained and does not affect the driver, ensuring their safety and comfort while operating the vehicle.

The allowed suspension travel refers to the maximum distance that the suspension system of a vehicle can move up and down. In this case, the correct answer is 2 inches, indicating that the suspension system is designed to allow a maximum vertical movement of 2 inches. This measurement is important as it determines the ability of the suspension to absorb shocks and maintain stability while driving over uneven terrain.

The keep out zone extends 68.6 mm in front and 68.6 mm behind the outer diameter.

The statement is false because when the braces are not welded, they should be securely attached to the frame using a 10 mm Metric grade 8.8 strong bolt.

"Anti-intrusion plates" should be made up of both solid steel and solid aluminum. This means that the plates should be composed of both materials, combining the strength and durability of steel with the lightweight and corrosion-resistant properties of aluminum. Using both materials in the construction of the plates would provide a balanced combination of strength and functionality, making them effective in preventing intrusions.

The firewall material must be rigid and non-permeable in order to effectively prevent the spread of fire and smoke between different areas or compartments. Rigidity ensures that the material maintains its structural integrity even under high temperatures, while non-permeability ensures that no gases or liquids can pass through the material. This combination of properties allows the firewall to act as a barrier, containing the fire and preventing it from spreading to other parts of a building or structure.

The use of gussets or triangulations allows for more impact zone members because they provide additional support and reinforcement to the structure. By adding these elements, the load is distributed more evenly across the members, reducing the stress on each individual member and allowing for a greater number of members to be included in the impact zone. This helps to increase the overall strength and stability of the structure, making it more resistant to impact or external forces.

The correct answer is both (a) and (b) because non-permanent joints for roll hoop bracing can be made using either a double lug joint or a sleeved butt joint. Both types of joints provide the necessary strength and stability for the roll hoop bracing, allowing for easy assembly and disassembly when needed.

The visibility angle allowed is 200 degrees. This means that the person or object can be seen within a range of 200 degrees. It is the maximum angle within which visibility is allowed, indicating that anything outside this angle may not be visible.

Multiple panels can be used to form the firewall. This means that instead of using a single panel, multiple panels can be joined together to create a firewall. This allows for flexibility in terms of size and shape, as well as ease of installation and maintenance. It also provides better protection against fire hazards by creating a stronger barrier. Therefore, the statement "True" is the correct answer.

Teams have the option to use aluminium alloys, titanium alloys, or composite materials for the main roll hoop. This means that the statement is true, as it provides a range of choices for the material used in the construction of the main roll hoop.

Steel is an alloy primarily composed of iron and carbon. The minimum carbon percentage required for steel material is 0.1%. This is because carbon plays a crucial role in the strength and hardness of steel. It helps to enhance the steel's ability to be heat-treated and provides it with the desired mechanical properties. A carbon percentage below 0.1% would result in a material that is not considered steel. Therefore, 0.1% is the minimum requirement for carbon content in steel.

When the driver's vision is obscured, it is crucial for them to be able to quickly hit the kill switch to shut off the engine and prevent any potential accidents or further damage. The correct answer of 2 seconds indicates that the driver should be able to react and locate the kill switch within this short time frame, ensuring their safety and the safety of others on the road.

Once a vehicle is approved for the dynamic round, adjustments of brake bias, substitutions of head restraints or seat inserts, and adjustments of belts, chains, and clutches are allowed. However, adjustment of secondary members is not allowed.

All forward-facing edges on the bodywork should have forward-facing radii of at least 38 mm. This means that the edges should have a smooth curve with a minimum radius of 38 mm when viewed from the front. This is important for safety reasons as sharp edges can cause injury in case of a collision. Additionally, a larger radius helps in reducing aerodynamic drag and improving the overall performance of the vehicle.

The upper side impact structural member should be attached to both the main hoop and the front hoop. This is because the main hoop provides support and stability to the rear of the vehicle, while the front hoop provides support and protection to the front of the vehicle. By attaching the upper side impact structural member to both hoops, it ensures that the vehicle is properly reinforced and protected in the event of a side impact.

The impact attenuator length should be 200 mm because it is the correct measurement specified for this particular scenario or requirement.

The given answer "None" suggests that there is no ingress time limit. In other words, there is no maximum time limit for entering or accessing a particular area or location. This means that individuals can enter or access the area without any time restrictions or limitations.

A seat that is removable can be detached or taken out easily from its position. This feature can be beneficial in various scenarios, such as when cleaning the area or when additional space is needed. It allows for flexibility and convenience as the seat can be temporarily removed and reinstalled as required. This option provides versatility and adaptability to the seating arrangement.

For panels used for floor close out, the maximum allowable gap should be 3mm. This means that the panels should be installed tightly together, with no more than a 3mm space between them. This ensures a secure and stable floor surface, preventing any potential hazards or damage that could occur from larger gaps.

The front hoop must not be more than 250 mm forward of the steering wheel. This means that the distance between the front hoop and the steering wheel cannot exceed 250 mm. This requirement is likely in place to ensure the safety and structural integrity of the vehicle, as having the front hoop too far forward could potentially compromise the stability and protection provided by the hoop in the event of a collision or rollover.

The front hoop must be supported by two braces. This means that there are two supports that hold the front hoop in place. Having two braces ensures stability and prevents the front hoop from collapsing or bending under pressure. It is important to have the appropriate number of braces to maintain the structural integrity of the front hoop.

Aspect ratio in terms of tyre nomenclature refers to the ratio of the height of the tyre's side wall to the width of the tread. This ratio is expressed as a percentage and helps determine the tyre's profile and overall performance characteristics. A higher aspect ratio indicates a taller side wall, which can provide a more comfortable ride and better shock absorption. Conversely, a lower aspect ratio indicates a shorter side wall, which can enhance handling and responsiveness.

The side impact structures should consist of a minimum of three members. This is because having three members provides better structural integrity and stability during a side impact collision. With three members, the impact forces can be distributed more evenly, reducing the risk of intrusion into the passenger compartment and minimizing the potential for injuries. Having fewer than three members would compromise the effectiveness of the side impact structures in protecting the occupants of the vehicle.

After a vehicle has been approved, teams are allowed to make changes to the springs, sway bars, and shims. This suggests that the statement is true.

The correct answer is 1.5 mm because the thickness of a firewall must be sufficient to provide adequate protection against the spread of fire. A firewall is a barrier designed to prevent the spread of flames and smoke from one area to another in case of a fire. A thickness of 1.5 mm would provide a suitable level of fire resistance, ensuring that the firewall can effectively contain the fire and protect adjacent areas.

The height of the firewall must be determined by the lowest point of the tallest driver's helmet. This ensures that there is enough clearance for the driver's head and helmet, providing adequate safety measures. By using the lowest point of the tallest driver's helmet as the reference point, it guarantees that all drivers, regardless of their height, will have sufficient space within the vehicle.

The number 200 in the given tyre nomenclature P 200/65 R 15 85 N stands for the tread width. The tread width is the measurement of the width of the tire's tread, which is the portion that comes into contact with the road. In this case, the tread width is 200, indicating that the tire has a tread width of 200 millimeters.