Quiz Preparation

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

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

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

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

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

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

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

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

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

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

2.

The Electrical System Officer must: (Multiple Choice)

3. Can a team be eliminated from the Engineering Design Event by the judges, if every document of theirs was accepted and they are present at the Engineering Design Event?

4. 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.

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

6. For the rain test: (Multiple Choice)

7. 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.

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

9. 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.

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

11. To build your race car you need a part what can be bought on the public market for 400 EUR per piece. Your plan is to sell 950 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 70 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

12. 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.

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

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

15. Which statements are correct? (multiple choice)

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

17. Your Team Sponsor offers you a Driver’s Harness. After examining the harness and the rules, an engineer in your team reports that the attachment of the harness can not be welded to the chassis structure. Furthermore, the engineer makes 4 statements. Which of these statements is true?

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

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

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

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

2. Which statements about the travel of the driving pedal is correct

3. 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.

4. 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.

5. 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

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

7. 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

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

9. 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

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

1. 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.

2. 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.

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

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

5. Calculate the Normal force on the rear left tyre during the first skidpad lap. You can assume, that your vehicle is in a steady-state condition and that there is no longitudinal acceleration. Further it can be assumed, that all 4 wheels have a lateral grip coefficient of 1.4. You can use the centerline radius stated in the rules. Following information regarding the vehicle are given. Give answer to nearest whole number in Newtons.

m = 220 kg

Cl = 3.8

A = 1 m^2

Rho = 1.1 kg/m^3

Wheelbase: L = 1.53

Trackwidth:t = 1.2 m

Height of CG: h = 0.2 m

Weight distribution/COP: 50%

6. 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

7. 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.

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

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

10. A team is in the process of validating the compliance of the shoulder harness bar used in their car. Choose the part in which their configuration is incompliant: