Quiz Preparation

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

2. What is the minimum allowed static ground clearance, including driver?

3. How many dynamic events can one team compete in during a competition?

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

5.

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

6. What is the minimum tread depth of the wet tires?

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

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

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

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

1. You want to use this shutdown button left and right between the main hoop and the main hoop bracings. Is this application rules compliant? (Multiple Choice)

2. 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.

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

4. What does a black flag mean?

5. Your team completes their best autocross run in 84.9 secs and that was the fastest overall time. How many points did your team recieve for autocross? Round to one decimal place.

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

7. What is the maximum number of drivers allowed to compete at an event?

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

9. Which of the following documents is directly evaluated during Engineering Design Event?

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

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

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

13.

The Electrical System Officer must: (Multiple Choice)

14.

The Electrical System Officer must: (Multiple Choice)

15. Your team completes their best manual acceleration run in 4.2 secs. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for acceleration? Round to one decimal place.

16. 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.

17. Which of the following statements are correct? (Multiple Choice)

18. Your team completes their best autocross run in 84.0 secs but knocks down five cones. The fastest team overall completed their run in 1 min 13 secs but knocked down three cones. How many points did your team recieve for autocross? Round to one decimal place.

19.

How many teams can be registered per university? (Multiple Choice)

20. 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.

1.

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

2. 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.
a = 2 m, F1 = 6 kN, F2 = 13 kN, F3 = 13 kN
Calculate the force in A and B in y-direction in kN. Enter the higher value. Round to one decimal.
(answer can be positiv or negativ but only negativ answers will be accepted)

3. Consider a digital LVTTL signal from your pedalbox to your main control unit. The length / of the cable inbetween is 5m. Your motor controllers introduce a noise of 0.15 V per meter cable. To correct for that noise, you introduce 74LVC1G34, non-inverting buffers into the cable.
The purpose of the buffer is to take a signal, to which a certain amount of noise has been added so that it would no longer meet the input specification of the static discipline, and clean it up so that it once again meets the output specification of the static discipline.
The non-inverting LVTTL buffers, as well as the gates shown, obey the following static discipline:

What is the minimum number of non-inverting LVTTL buffers required to connect inbetween in oder to ensure correct operation?

4.

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

5. 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

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

7. 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?

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

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

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

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

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. 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

2. 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

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

4. Which of the following statements regarding the Brake System is false?

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

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. 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

8. 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.

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

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

1. 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.

2. 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)

3. Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

4. 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.

5. 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.

6. 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

7. A lorry contains an engine with a power of 2.78 J/s. The lorry drives for 36 mins. Calculate the energy transferred in kJ rounded to three decimal places.

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. 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