Quiz Preparation

1. Which of these is/are not a penalty during autocross? (Multiple choice)

2. What is the minimum diameter of the shutdown button in the cockpit?

3. What is the penatly for driving off course during endurance?

4. What are not the diameter of the skidpad circles? (Multiple choice)

5. What does a black flag mean?

6. How many points are assigned for the BOM discussion in the Cost and Manufacturing Event?

7. Each team must have two 0.8kg fire extinguishers.

8. Are teams allowed to decide whether they drive on rain tires or slicks by themselves?

9.

10. What is the minimum number of points a team recieves for finishing an autocross run?

1. How far is the car tipped during the tilt test?

2. What is not a ’system‘ in the Cost Reports Bill of Material?

3. What is the diameter of the outside skidpad circle?

4. Your team completes their best manual acceleration run in 6.0 secs. The fastest team overall completed their run in 3.9 secs. How many points did your team recieve for acceleration? Round to one decimal place.

5.

The Electrical System Officer must: (Multiple Choice)

6. Which of these is/are not a penalty during autocross? (Multiple choice)

7.

The Electrical System Officer must: (Multiple Choice)

8. What is the maximum duration of the Business Plan Presentation?

9. You want to use this shutdown button left and right between the main hoop and the main hoop bracings. Is this application rules compliant?

10. Each team must have two 0.8kg fire extinguishers.

11. To build your race car you need a part what can be bought on the public market for 400 EUR per piece. Your plan is to sell 950 race cars the next five years. If you will manufacture the part by yourself, you need an investment of 400.000 EUR for the installation. Furthermore, you need to pay 20.000 EUR per year for the machine operator. The material costs are 70 EUR per piece. The machine cannot be sold after the usage. What is the cost of one piece of the own manufactured parts? Give answer as one whole number

12. What does the red flag mean during the driving disciplines?

13. What is the penatly for hitting over a cone during skidpad?

14.

Assuming the skid pad event has only two participants, both EV without driverless. Team A and Team B: calculate the score rounded to two decimals for the team scoring the lower amount of points using the following data. (FS2025 Rules)

15.

The following parts are part of the Shutdown Circuit (Multiple choice)

16. Your team completes their best manual skidpad run in 4.0 secs but knocks down 11 cones. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for skidpad? Round to one decimal place.

17. What is the area of the cockpit opening template (including the area allowed for the steering) in square inches rounded to one decimal place?

18. Your team completes their best manual skidpad run in 6.1 secs. The fastest team overall completed their run in 4.9 secs. How many points did your team recieve for skidpad? Round to one decimal place.

19. What are not the diameter of the skidpad circles? (Multiple choice)

20. Can a team be eliminated from the Engineering Design Event by the judges, if every document of theirs was accepted and they are present at the Engineering Design Event?

1. Which of these HV- and LV-components have to be fire-retardant? (Multiple Choice)

2. Which of the following statements about the Tractive System Accumulator are wrong? (Multiple choice)

3. You have an electric car with these specifications:

• ten 12V batteries
• constant velocity of 80 km/h
• flat road (friction 1.2kN -> aerodynamic load included)
• load for battery 160 Ah
• efficiency of 80% (Motor)

How far can you drive with one load? Give answer to nearest whol number in km.

4. Your head of powertrain has found a battery cell with excellent specifications and yet cheap. He decides upon a 142s2p accumulator configuration using the cells with a capacity of 5.8 Ah. The manufacturer specifies an internal impedance of 1.5 mOhm. However, after a while you notice the cells are of horrible quality and their real capacity varies significantly leading to an unbalanced accumulator.

He performed experiements to find an approximation of the cells SoC relation to their open-circuit voltage (EMF) as shown in the following figure:

Assume due to imbalance, exactly half of the accumulators cells are at 40% SoC and half at 80% SoC. What current will be drawn at the maximum allowed power usage? Give answer in Amps to nearest whole number

5. How long will it take to discharge C1 below 60V using the following constant current sink if it is initially charged at 565V? (MOSFET’s VGSth: 4V) Give answer to two decimal places in secs.

6. Which of the following statements is false regarding the difference between Lead-based batteries, Nickel-based batteries and Lithium-based batteries?

7. Your team is considering two languages, Verilog and VHDL, for programming an FPGA. Which languages could be used?

8. For this Wheatstone Bridge based NTC temperature measurement circuit, which is the lowest voltage measurement (VAB) that is possible to obtain at 60ºC? (NTC B: 3435 +/-1%) Give answer in Volts rounded to two decimal points.

9. Which of the following statements about LV battery packs with lithium based chemistry other than LiFePo4 is not true?

10. A capacitor with a capacitance of 100 μF is currently charged to a voltage of 199.8V. How much additional energy is needed to charge it to a voltage of 301.4V. Give answer to 4 significant figures in Joules

1. Calculate the gravitational potential energy of a 4 kg object at 15 m above Earth’s surface with gravitational field strength of 9.81 N/kg. Give answer to three significant figures in J.

2. Calculate the pull force on the plate in Newton. Round to 2 numbers seperated by a point (exanple: 9.13)

3. A team is in the process of validating the compliance of the shoulder harness bar used in their car. Choose the part in which their configuration is incompliant:

4. Calculate delta_h1 and delta_h2 in mm (integers), seprate the value with a comma, no space in between, delta_h1 is the first value (exp.: 126,4)

5. For a horizontally positioned, non-insulated steam pipe with a length of l=3 m and a diameter of d_a=0.1 the convective heat loss Q_point is to be calculated. The temperature of the surrounding air is θ_f=30∘C and that of the outer wall surface is θ_w=170∘C.

Input the result in kW and round to two decimal numbers seperated by a point without thr unit (example: 145.35)

6. Three inductors are connected as shown in the following figure:

Given that L1 = 2L2, find L1 and L2 such that the equivalence inductance is L = 0.7 H.
Give your answers in Henry, rounded to three decimal places separated by a comma (L1, L2)

7.

8. The Wet Skid Pad World Record was set at FSN2019 by TU Delft. They managed to set a time of 4.901 for the left circle and a time of 5.031 for the right circle. Assume the run was completed perfectly along the center line of the circles. What was their average speed during this record run? Give answer to two decimal places in mph.

9. The previous season you could recuperate only 25% of your initially stored energy, but this season a big improvement in your drivetrain allows you to recuperate 63% of the initially stored energy.  Knowing that you had 9.6 kWh of energy in your accumulator during the last season, how much energy must your new accumulator have, if you assume, that it’s the same length and speed? Give answer in kWh to one decimal place.

10. How much current flows when 99 C passes down a wire in 11 s? Give answer in amps as a whole number.