Formula Student Germany 2017

A driver may drive in two events during a competition. This suggests that there are a limited number of events that a driver can participate in, and they are restricted to only two events.

Nylon is not considered to be suitable for a driver's suit because it is not fire-resistant. Driver's suits are designed to protect drivers from fire hazards, and materials like PBI, Indura, and Proban are known for their fire-resistant properties. Nylon, on the other hand, is a synthetic material that is highly flammable and can melt when exposed to heat, making it unsuitable for use in driver's suits.

The correct answer is ISO 7010-W012. This specification refers to the HV sticker required to be pasted on the accumulator. ISO 7010 is a standard that provides safety symbols and signs for use in workplaces. The "W012" part of the specification likely refers to the specific design or layout of the HV sticker.

When the 75kg driver is seated in the race car, the center of gravity (CoG) shifts 144mm forward. This means that more weight is now distributed towards the front of the car. Since the original weight distribution was 64% rear, the remaining 36% was distributed towards the front. When the CoG shifts forward, some of the weight from the rear is transferred to the front. Therefore, the weight distribution with the driver is 36% rear and 64% front. Simplifying this, we get 44% front and 56% rear. Therefore, the correct answer is 44% front.

The High Voltage Disconnect (HVD) is not necessary for the charging process in the designated area. The HVD is typically used to disconnect the high voltage system in case of emergencies or maintenance. However, during the charging process, the HVD is not directly involved and is not required for the charging to take place. The other options mentioned, such as the Shutdown button, Tractive System Measuring points, and AMS, IMD (functional), are all important components or systems that are necessary for the charging process in the designated area.

In an endurance event, violations of the driver's change procedure do not result in a time penalty of up to 5 minutes. This statement is not true because in an endurance event, violations of the driver's change procedure typically result in disqualification or a more severe penalty than just a time penalty.

The statement "The camera mount must withstand a 20g impact in longitudinal direction. This must be proven in the SES." is correct. It is important for camera mounts to be able to withstand impacts to ensure the safety and security of the camera. This requirement is typically tested and proven in the SES (Safety and Endurance Test).

Statement 1 is correct because the radial acceleration before detachment of the stone can be calculated using the formula a = v^2/r, where v is the velocity and r is the string length.

Statement 3 is correct because both stones will land in their hands respectively. Since Boy 1's stone detaches vertically upwards relative to the Segway, it will eventually come back down and land in Boy 1's hand. Similarly, Boy 2 throws his stone upwards, so it will also come back down and land in his hand.

The distance between the edge of the vehicle numbers and the edge of the background can be 30mm. This means that there should be a gap of 30mm between the numbers on the vehicle and the background surrounding it. This distance is important to ensure that the numbers are clearly visible and easily readable, without any overlap or confusion with the background.

The head restraint should be 20 mm away from the back of the driver's helmet when the driver is in their normal driving position. This distance is important to ensure that the head restraint can effectively support the driver's head and neck in the event of a collision or sudden stop, reducing the risk of whiplash or other injuries. A closer distance could potentially cause discomfort or restrict the driver's movement, while a greater distance may not provide adequate support.

Fuses are designed to protect electrical circuits from overcurrent. When a current exceeds the rated value of a fuse, it causes the fuse to heat up and eventually melt, breaking the circuit. In AC circuits, the current alternates direction, which means that when it crosses zero, the arc that forms when the fuse melts is extinguished. This allows the fuse to interrupt the current flow more easily. In DC circuits, however, the current flows in one direction only, causing a one-sided strain on the fuse. As a result, fuses have lower ratings for DC compared to AC.

The minimum value of the resistance between HV ground and LV ground is 250.0 kOhms. This value is determined by the maximum tractive system voltage of 315 V. The resistance is necessary to ensure proper grounding and to prevent excessive current flow between the high voltage and low voltage grounds. A higher resistance value is required to handle the higher voltage, hence the correct answer is 250.0 kOhms.

If the lap belts and anti-submarine belts are attached to the same point, it means that they are sharing the load. The load that the point must support is the sum of the loads supported by the lap belts and the anti-submarine belts. Since the answer is 19.1 kN, it implies that the lap belts support a load of 19.1 kN and the anti-submarine belts also support a load of 19.1 kN, resulting in a total load of 38.2 kN on the point of attachment.

The correct answer is "Only I". This means that the statement "They can be of solid-state type" is not true about AIRs. This suggests that AIRs cannot be of solid-state type.

According to the rule book, the parts that need to be grounded to the chassis are the HV cable sheath, LV negative, and external, uninsulated heat sinks. This means that only options I, II, and IV are correct. Option III, which states that the negative terminal of the battery pack needs to be grounded to the chassis, is incorrect. Therefore, the correct answer is Only I, II, IV.