Quiz Preparation

1.

A team can register up to how many Electrical System Officers?

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

3. What is the minimum height of the characters of the car number?

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

5. How many sets of dry tyres are allowed to be used in the manual dynamic disciplines during one event?

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

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

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

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

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

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

2. Your team completes their best autocross run in 71.9 secs but goes off course once and knocks over two cones. The fastest team overall completed their run in 73.2 secs. How many points did your team recieve for autocross? Round to one decimal place.

3. 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.

4. What is the minimum height of the characters of the car number?

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

6. 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.

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

8. To build your race car you need a part what can be bought on the public market for 250 EUR per piece. Your plan is to sell 1000 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

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

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

11. Your team completes their best autocross run in 84.0 secs but knocks down five cones. The fastest team overall completed their run in 1 min 13 secs. How many points did your team recieve for autocross? Round to one decimal place.

12. 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 1300 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 25.000 EUR per year for the machine operator. The material costs are 75 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

13.

The following items have to be on or attached to the push bar, if you are an EV team. (multiple choice)

14. Which of the following statements are wrong? (Multipel Choice)

15. 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

16. 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.

17. 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 (?, ?).

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

19. 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.

20. A team missed the intial deadline for a document and submitted this 24 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

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. 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

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

5. A thin circular, isolated wire made of copper with radius R lies on a table with its ends
connected to a Volt meter. Another, straight wire lies exactly along a diameter of the
circular wire, connected to an alternate current source i(t) = I0 sin(wt).
The experimental setup is shown in the following Figure:

Which effective voltage Ueff does the Volt meter display?
R = 10 cm, maximum current I0 = 1 A, f = 50 Hz.
Give your answer in Volts with three decimal places

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

7. 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

8. 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

9. 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.

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

1. 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)

2.

3. 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.

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. 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:

6.

7. 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.

8. For a horizontally positioned, non-insulated steam pipe with a length of l=3 m and a diameter of d_a=0.1 the convective heat loss Q_point is to be calculated. The temperature of the surrounding air is θ_f=30∘C and that of the outer wall surface is θ_w=170∘C.

Input the result in kW and round to two decimal numbers seperated by a point without thr unit (example: 145.35)

9. 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.

10. 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