Quiz Preparation

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

2. How many numbers of skidpad runs does a team have?

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

4. In which currency must the costs be displayed in the CBOM?

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

6. Which of the following certifications for helmets is not allowed?

7. What does a black flag mean?

8. What is true about the Cones & Markings for Autonomous Running?

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

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

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

2. 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

3. What does the yellow and red striped flag mean during Endurance and Autocross Event?

4. 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.

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

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 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.

8. What is the diameter of the inside skidpad circle?

9. 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.

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

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

12. Suppose that 28 teams particpate in the CV category and your team is one of them, there are 6 Busniess Finalist teams among them. The team with the highest points not reaching the finals has 67 points, your team recieved 59 points. What is your Business Plan Presentation Score? Give answer to one decimal place

13. Your team reiceves 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.

14. 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)

15. How far is the car tipped during the tilt test?

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

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

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

19. Teams who remove their vehicle from the event site after
the event has begun will be disqualified from the event.

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

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

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

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

5. 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

6. 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

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

8. 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)

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

10. 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.

1. 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

2. 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.

3. 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)

4. 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.

5. 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.

6. 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.

7. 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.

8. Calculate the pull force on the plate in Newton. Round to 2 numbers seperated by a point (exanple: 9.13)

9. Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

10. in m, to decimal numbers seperated by a point (example: 150.00), no unit requirment for the solution