Quiz Preparation

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

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

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

4. During the BPP, who is allowed to answer questions from the judges?

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

6. Which of the following is true about presenting the vehicle for static judging?

7. What is the minimum height of the university name and the car number added together?

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

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

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

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

2. What is the total surface area of percy (including connection pieces)? Persume the connection pieces have a width of 20mm. Give answer in miles to one decimal place

3. Your team completes their best manual skidpad run in 6.1 secs. 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.

4.

The Electrical System Officer must: (Multiple Choice)

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

6. What is the diameter of the outside skidpad circle?

7.

The Electrical System Officer must: (Multiple Choice)

8. What is not a ’system‘ in the Cost Reports Bill of Material?

9. 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.

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

11. 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.

12. 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.

13. What is the minimum height of the university name and the car number added together?

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

15. 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.

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

17. 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.

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

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

20. 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.

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

2. 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

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

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

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

6. 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

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

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

9. 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.

10. 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

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

2. 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.

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

4. A spring in a church clock has a spring constant of 10 N/m. What is its elastic potential energy store if it is stretched 8 m? Give answer in Joules to three significant figures.

5.

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

8. An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 9.6 m/s. On the way up, what is the height of the object above the ground when it has a speed of 1.9 m/s. At what time does it reach this height on the way down? Give both answers separated by a comma to one decimal place.

9. An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 8.0 m/s. On the way up, what is the height of the object above the ground when it has a speed of 2.0 m/s. At what time does it reach this height on the way down? Give both answers separated by a comma to one decimal place.

10. 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