Quiz Preparation

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

2. What is the minimum height of the university name on both sides of the car?

3.

Which of the following parts are not part of the Shutdown Circuit? (Multiple choice)

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

5.

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.

6. How long is water sprayed on the car during the rain test?

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

8. How many pages of text are allowed in the Engineering Design Report? (Multiple choice)

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

10. 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. A team missed the intial deadline for a document and submitted this 24 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

2.

The Electrical System Officer must: (Multiple Choice)

3. For the rain test: (Multiple Choice)

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

5. Your team recieves 23.9 points for their autocross run. The fastest time overall was 82.3 secs. How long was your team’s fastest run? Round to one decimal place.

6. Ten pages of text are allowed in the Engineering Design Report

7. 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 1300 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 25.000 EUR per year for the machine operator. The material costs are 75 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

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

9.

A team can register up to how many Electrical System Officers?

10.

The Electrical System Officer must: (Multiple Choice)

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

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

13. What does a black flag mean?

14. The team at an event with the highest points in the Buisness Plan Presentation but not reaching the finals has 65 points. Your team received 61 points but your team missed their timeslot for BPP. What is your Business Plan Presentation Score? Round to one decimal place

15. The team at an event with the highest points in the Buisness Plan Presentation but not reaching the finals has 69 points. Your team received 33 points. What is your Business Plan Presentation Score? Round to one decimal place & don’t forget to use a point instead of comma

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

18. An EV team without driverless components have 9 parts of scrutineering to pass before being allowed to compete on track.

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

20. How many points are assigned for the pitch video in the Business Plan Presentation Event?

1. A horizontal pipe increases from cross-section 1 with A1 = 2.55 cm2 to cross-section 2 with A2 = 7.1 cm2. In cross-section 1 there is a pressure of p1 = 1.2 bar and a flow rate of v1 = 5 m/s. The density of water is 997 kg/m3.
Calculate the pressure in bar in cross-section 2 for the flowing water. Round to two decimals.

2.

The figure shows a block diagram of a dynamic system.
What is the overall transfer function of the system?
Mark the correct answer.

3. Given is a parallel-plate capacitor with area A, separated by a uniform gap of thickness d1 filled with a dielectric with permittivity ε. At time t1, the voltage of the capacitor is V1. The capacitor is not connected to any electrical network.
How much energy is needed to change the plate spacing to d2 = 4 × d1?

4. Which of the following statements regarding the rules are correct (2024)?
Mark all correct answers.

5.

The figure shows internal single walls of the TSAC and their cutouts.
Which of these walls are rules compliant? Mark all correct answers.

6. Your vehicle has its right-hand base coordinate frame defined with the x-axis pointing forward into the driving direction and the z-axis upwards.
A camera is positioned on the vehicle as follows, in the vehicle coordinate frame:
x = 500 mm, y = 160 mm, z = 1140 mm
and the Euler angles ZY′X′′
roll = 100°, pitch = 0°, yaw = 90°
Assume the camera has no distortion, a resolution of 1280 px × 1080 px, and the principal point (cx and cy) and the focal lengths (fx and fy) are given by:
cx = 636 px, cy = 548 px, fx = 241 px, fy = 238 px
The point (u, v)0 is defined to be (u, v)0 = (-cx, -cy) as commonly used.
Within the camera image plane, z-axis in viewing direction, an object center is detected at pixel:
u = 795 px, v = 467 px
Another sensor determines the euclidian distance of the object to the camera frame as:
d = 2.7 m
Calculate the 3D position of the object in the vehicle coordinate frame in meter. Round to three decimals. Give the solution in the following format: x, y, z, e.g. 1.234, 5.678, 9.012

7. Coco, the three-legged cat with a mass of 3.5 kg, is standing still on a horizontal frictionless surface. While playing with a ball of yarn, having a mass of 0.05 kg, Coco kicks it backwards with one of her three legs so hard that the ball of yarn reaches a speed of 2.3 m/s.
The resulting speed of Coco is:

8. In the following there are multiple statements abount the rules. Which statements are correct?

9. The truss structure shown in the figure is loaded with the forces F1, F2 and F3. The truss structure is supported in points A and B, as shown. Each segment of the truss structure is assumed to have no mass and infinite stiffness.
Identify the zero-force members in the structure under the given load and indicate them by placing a check mark.
You may select one or more answers.

10. You want to use a photo from media.formulastudent.de.
Mark the correct answer.

1. In which cases will team members be denied their on-site member pass?
Mark all correct answers!

2. In the following there are multiple statements abount the rules. Which statements are correct?

3. According to the FS Rules and the competition handbook: Which statements are true?

4. Mark all true statements according to the FS Rules

1. Which of the following requirements of the brake light assembly must be met to be rules compliant? (multiple choice)

2. Which statements about the travel of the driving pedal is correct

3. You want to drive with a Lithium Polymer Cell with 3.2 Ah and weighing 70 g. Which of the following configurations would be allowed by the rules? Hint: Unorm = 3.7 V, Umax = 4.2 V

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

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

7. 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.

8. 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

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

10. 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.

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

2. Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

3. You would like to drink a cup of very hot coffee with milk early in the morning, but you
are in a hurry and have only 5 minutes until you have to leave for work. At which time
after brewing should you add the cold milk to the coffee and stir in order to decrease the
temperature of the mixture as much as possible:
a) 0 minutes (immediately),
b) 2 minutes, or
c) 4 minutes?
Suppose that the stirring can be done instantaneously and that you need the last one
minute for drinking.

brew temperature C = 80 ◦C, temperature of milk = M = 10 ◦C, room temperature
0 = 20 ◦C, volume of coffee VC = 300 ml, volume of milk VM = 100 ml, specific heat
capacity of coffee cC = 4180 J/(kgK), specific heat capacity of milk cM = 3500 J/(kgK).

Please enter only the letter of the corresponding answer

4. 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.

5. 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 = 300 km/h, μF = 0.15, g = 9.81 m/s2.
Give your answer in meters, rounded to four significant places.

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. 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.

8. The given gearbox consists of two gear sets with wheels 1, 2 and 3, 4 respectively. The wheels are fixed to their shafts. Calculate the drive speed (in rpm) of wheel 4?

Given: n1=600 rpm, z1=18, z2=90, z3=24, z4=120

9. A helicopter of mass 4200 kg is carrying a crate using a light extensible rope. The crate has a total mass of 800 kg, including its contents. The helicopter and crate are accelerating upwards at 2.0 ms^-2. What is the tension in the rope? Use gravititational field strength g is 9,81 N/kg. Air resistance can be ignored. Give answer to nearest whole number in Newtons

10. Before the endurance you pump nitorgen in your tires at a temperature of 20°C and 0.7 bar relative pressure. Knowing, that during the endurance the maximal tyre temperature will be around 60°C, what will be the maximal relative pressure of the tyre? Give answer in bar to two decimal places.