Quiz Preparation

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

2. How many sets of dry tyres are allowed to be used during one event?

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

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

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

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

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

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

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

1. Your team completes their best manual skidpad run in 5.1 secs but goes off course. The fastest team overall completed their run in 4.6 secs. How many points did your team recieve for skidpad? Round to one decimal place.

2.

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.

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

4. Which of the following requirements is a must for all types of vehicles, when moving the vehicle on the competition site?

5. 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.

6. Your team recieves 59.3 points for their autocross run. The fastest time overall was 71.9 secs. How long was your team’s fastest run? Round to one decimal place.

7. To build your race car you need a part what can be bought on the public market for 450 EUR per piece. Your plan is to sell 1200 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 50 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. 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

9. 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 (?, ?).

10. Your team completes their best manual skidpad run in 4.3 secs but knocks down 5 cones. 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.

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

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

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

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

15. What does a black flag mean?

16. The team at an event with the highest points in the Buisness Plan Presentation but not reaching the finals has 67 points. Your team received 29 points but the topic of your team’s BPP didn’t meet the requirements defined in the rules. What is your Business Plan Presentation Score? Round to one decimal place

17. Your team completes their best manual acceleration run in 4.1 secs. The fastest team overall completed their run in 3.2 secs. How many points did your team recieve for acceleration? Round to one decimal place.

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

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

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

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

2. 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:

3. The sequence x[n]=(-1)^n is obtained by sampling the continuouse-time sinusoidal signal x(t)= cos(w0t) at 1-ms intervals, i.e.,

Determine the three smallest distinct possible values of w0 as a multiple of nx10^3 in the following format: w0 1, w0 2, w0 3, e.g 1, 2, 3

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

5. The TS of an EV can be simplified to be
an ideal TS energy storage and
an unshielded TS cable running through free air.

The ideal TS energy storage consists of the following parts:
an ideal voltage source V0 supplying 600 V DC at any load
an ideal resistor Ri of 28.5 mΩ which combines all resistances in the high current path of the TS energy storage, such as the cell, contact, busbar, wiring, fuse, and outlet connector resistances
an ideal circuit-breaker as the main fuse having an appropriate DC voltage rating and a characteristic such that the instantaneous tripping current is 10 times the rated current

The TS cable has the following properties:
the cross-section A is 2×6 mm2
the length l is 10 m
the specific conductivity κ is 56 m/(Ω*mm2)
a 30 % increase in the wire’s resistance covers the thermal behavior and all other effects during a short-circuit event
Select the rated current In and breaking capability Icn of the TS energy storage circuit-breaker, such that
a short circuit event at any point of the TS wire triggers instantaneous tripping
a short circuit event at any point of the TS wire can be interrupted
the maximum possible rated current is chosen, although the value might be well above the typical continuous current rating of the cable
available values for the rated current In have a step of 10 A (e.g. 10 A, 20 A, 30 A)
the minimum possible breaking capability is chosen
available values of the breaking capability Icn have a step of 10 kA (e.g. 40 kA, 50 kA, 60 kA)
Give the rated current In in A and the breaking capability Icn in kA in the following format: In, Icn e.g. 123, 456

6. Fred, the racing alpaca, challenges Coco, the 3-leged cat, to an acceleration event according to D 5.1.1. Being very confident, Fred gives Coco a head start h of 14 m infront of the start line. Both start the same time t=0 s having an initial speed V0 of 0m/s as shown in the figure. Coco accelerates with 6m/s^2. Assume that both are not limited by speed and have a constant acceleraton over the full acceleration event.

Calculate the minimum acceleration Fred needs to achieve to reach the finish line at the same time as Coco. Round to one decimal.

7. A single-cylinder four-stroke engine with a total displacement of 623.7 cm3 has the following theoretical design: piston stroke s = 52 mm, connecting rod length l = 66 mm, piston diameter d = 38 mm. The ignition timing point is given as Sk = 2.0 mm before TDC.
Calculate the ignition timing point in ° crankshaft before TDC. Round to one decimal.

8.

The figure shows the output voltage Vout versus the input voltage Vin as the transfer function of 74LVC1G34, a non-inverting LVTTL buffer.
The non-inverting LVTTL buffer obeys the following static discipline:

Does the given tranfer curve satisfy the static discipline? Mark all correct answers.

9. Fred, the racing alpaca, has made a New Year’s resolution to lose weight to improve his time in Acceleration. Assume that the traction force remains the same, is constant over the entire Acceleration, and that drag or other resistances can be neglected.
How much weight must he lose at least to improve his time by 13 %? Answer in % and round to the nearest one.

10. Given is the three-dimensional circuit as shown. It consists of three resistors, each 4.7 kOhm, six capacitors, each 470 nF, and three inductors, each 4.7 μH.
Calculate the magnitude of the impedance |z| in kOhm between the input and output marked in red for a sinusoidal voltage of 12V and 50 Hz between the input and output. Round to two decimals.

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

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

3. Mark all true statements according to the FS Rules

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

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

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

3. 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

4. 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

5. 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.

6. 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.

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

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

9. 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

10. 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)

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 lorry contains an engine with a power of 0.255 W. The lorry drives for 51 s. Calculate the energy transferred in Joules and round to one decimal places.

3. If the density of aluminium is 2.71 kg/m^3, find the volume of a 0.888 kg of aluminium. Give answer in m^3 with two decimal places.

4. Calculate the maximum possible cornering speed (in kph) for the following FSAE car when going through a 20 m radius corner.

m = 260kg; cl *A * Rho = -6 kg/m; Tyre coefficient of friction = 1.5; g = 9.81 m/s^2.

The vehicle can be treated as a point mass, driving resistances neglected. Round to 1 decimal

5. 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)

6. 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

7. 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

8. 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

9. The kinetic energy of a 8 lbs 4 oz box as it was dropped reaching ground is 10125J. Determine the speed as it lands. Give answer to one decimal place in m/s.

10. Calculate the cornering speed during Skidpad (you can use the centerline radius in the rules) using following information:

μ_y = 1.4,  m = 240 kg,  c_L = 3.2,  A = 1 m^2,  ρ = 1.1  kg/m^3

It is assumed, that there is no weight transfer and all 4 tires are at the optimal grip level. Answer in m/s rounded to one decimal place.