Quiz Preparation

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

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

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

4. What is allowed regarding telemetry during a run?

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

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

7.

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

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

9. What is BOM short for?

10. What penalty is given for a doo in Skidpad?

1. Which statement about the Ready-To-Drive sound is correct?

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

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

4. 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.

5. 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

6. How many percentage of points is the Cost Understanding in the Overall Cost and Manufacturing Event?

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

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

9. How many percentage of points are the Finances in the Business Plan Presentation Event?

10. 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

11. Your team completes their best manual acceleration run in 3.3 secs, but at the end of the run knocks over one cone. 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.

12.

The Electrical System Officer must: (Multiple Choice)

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

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

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

16.

The Electrical System Officer must: (Multiple Choice)

17. What is the minimum tread depth of the rain tires?

18. What is the maximum length of time allowed for the driver change in endurance, in order to recieve no penatly?

19. What is the minimum diameter of a shutdown button placed on the side of the vehicle behind the driver’s compartment?

20. 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)

1. 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

2. 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.

3. Your BSPD has been triggered although the driver did not touch the driving pedal. What could have gone wrong? (multiple choice)

4. 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

5. 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.

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

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

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

1. The magnitude of the manifold reaction force FK is to be determined. In Newton, integer, no unit in the answer

2. In a gas pipe, the gas pressure pG is measured using a U-tube manometer connected at the bottom. Above the meniscus of the measuring liquid (mercury with density ρQ) on the gas side, there is a column of water with height h₂ and density ρW.
Question:
What negative pressure △pU (vacuum) exists in the pipe compared to the external pressure p₀?

Result in Pa, two decimal numbers seperated by a point (exp. 15.3). Do not put the Unit in the field below.

3. in cm^3, round to decimal numbers sperated by point (13.5) no unit int the answer

4. 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.

5.

6. A hall with a floor area of 500 m² is to be equipped with underfloor heating, which will be operated at an average temperature of 33°C.

What percentage of the floor area must be used as heating surface in order to ensure an indoor temperature of 18°C when the outside temperature is -15°C?

Result in m^2 as an integer

7. 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.

8. Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

9. Unit: kg/(m^3), to decimal number seperated by: . (exp. 15.3), write only the number in the field below

10. 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