Quiz Preparation

1. How many different tyre sizes can be used on a car during an Autocross run?

2. What is the minimum height of the university name and the car number added together?

3. What is the minimum allowed ground clearance, excluding driver?

4. What is BSPD short for?

5. Which of the following is true about presenting the vehicle for static judging?

6. What does the yellow flag mean during the driving disciplines?

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

8.

In the event of unsportsmanlike conduct, 25 penalty points will be deducted from the team’s overall score. A second violation will result in an additional 100 penalty points deducted from the team’s overall score.

9. The car is tipped to 60° during the tilt test?

10. What is the minimum score for the third place in the Business Plan finals (with three finalists)?

1. What is the minimum height of the characters of the car number?

2. Your team recieves 14.7 points for their autocross run. The fastest time overall was 69.1 secs. How long was your team’s fastest run? Round to one decimal place.

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

4. An official has the right to remove the scrutineering sticker from the car, if the car is no longer rule compliant.

5. The length of the acceleration track is 75m. Hypothetically the acceleration of the cars is constant, and linear, without slip. The vehicle starts from the starting line of the Acceleration track and then covers 75m. At the finish line, the speed of the racing car is 108 km/h.

How much time (in secs) is needed for the car complete the Acceleration Event and what was the acceleration of the car ( in m/s^2)? Give the answers as whole numbers sparated by a comma (?, ?).

6. As a DV-EV Team not competing in DC, what is your maximum total score of Busniess Plan Presentation, Cost and Manufacturing, Skid Pad, Acceleration and Efficiency together?

7. Your team completes their best manual acceleration run in 5.3 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.

8. Which of the following requirements are a must for all non DV electric cars with wings, when moving the vehicle on the competition site? (Multiple choice)

9. What is the minimum score for the third place in the Business Plan finals (with three finalists)? (?? points)

10. What is the maximum amount of points a EV team can recieve at an event?

11.

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)

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

13. What is the volume of the smallest allowed head restraint? Give answer to two decimal places in m^3

14.

The Electrical System Officer must: (Multiple Choice)

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

16. A team missed the intial deadline for a document and submitted this 49 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

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

18. 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.

19. How many points are assigned for the Overall Vehicle Concept in the Engineering Design Event? (Multiple choice)

20. How many events may a driver drive during a competition?

1. The following processes have to be measured by the AMS. (Multiple choice)

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

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

4. 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

5. 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

6. 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.

7. 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.

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

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

10. The previous season you could recuperate only 27% of your initially stored energy, but this season a big improvement in your drivetrain allows you to recuperate 69% of the initially stored energy.  Knowing that you had 6.3 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

1. A refrigeration unit cools water of mass 3 kg by 33 °C. Find the thermal energy removed from the water. The specific heat capacity of water is 4186 J/kg celsius. Give answer to three significant figures in kJ.

2. A racing car rolls to a stop on a horizontal course with an initial speed of v. It decelerates
only by friction with a rolling resistance of μF, which is supposed to be independent of
the current velocity.
What is the distance s the car needs to stop?
v = 230mph, μF = 0.17, g = 9.81 m/s2.
Give your answer in meters, rounded to four significant places.

3. During last year acceleration a top speed of 100 km/h was reached. Due to big improvements in the new drivetrain, the new vehicle reaches a top speed of 120 km/h. The aerodynamics chief has some worries about the stability of the rear wing bracing due to the higher aerodynamics load. Given the geometry below, by how much % does the bearing force in point A change in comparison to last year? (The aerodynamic package did not change and therefore some values can be assumed for both vehicles). Give answer rounded to one decimal place.

CL=3.8     CD=1.2     A=1 m²     rho=1.1 kg/m³     L1=50 mm     L2= 100 mm     H1= 125 mm     H2= 165mm

4. An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 9.6 m/s. On the way up, what is the height of the object above the ground when it has a speed of 1.9 m/s. At what time does it reach this height on the way down? Give both answers separated by a comma to one decimal place.

5. Calculate the Normal force on the rear left tyre during the first skidpad lap. You can assume, that your vehicle is in a steady-state condition and that there is no longitudinal acceleration. Further it can be assumed, that all 4 wheels have a lateral grip coefficient of 1.4. You can use the centerline radius stated in the rules. Following information regarding the vehicle are given. Give answer to nearest whole number in Newtons.

m = 220 kg

Cl = 3.8

A = 1 m^2

Rho = 1.1 kg/m^3

Wheelbase: L = 1.53

Trackwidth:t = 1.2 m

Height of CG: h = 0.2 m

Weight distribution/COP: 50%

6. Calculate the force Fc working at point C. Give answer in kN rounded to one decimal place.

Forces at point A: Rax = 3kN, Ray = 9kN, Ma = 10kN/m

7. Your team is the first car at the design event during FSN2022 and it’s quite cold for this time of the year, 12 degrees C. To impress the judges, you decide to make some tea for them. What is the minimum required time to prepare the tea, knowing that you have to boil 4 tea cups of 370ml each and you have an electrical heater with a power of 500W. Give your answer to the nearest whole number in secs.

8. A water tank under a pressure of p = 117.72 kPa has three pipes connected to it, which are sealed 5 meters below the water surface by three plates with areas A₁, A₂, and A₃.
Task:
Sort the pressures p₁, p₂, and p₃ according to their magnitude.

9. A spring in a car’s suspension has elastic potential energy store 226 J. If the spring constant is 8.1N/mm, find the extension. Give answer in meters to three significant figures.

10. 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.