Quiz Preparation

1. What is the maximum duration of the Business Plan Presentation?

2. What is IMD short for ?

3. What is the minimum height of the university name on both sides of the car?

4. Situation during the Endurance: A driver spins with the car and is driving in reverse to get back on track. What is wrong in this situation?

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

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

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

8. Which of the following must be included in the Bill of Material (BOM)?

9. What is the length of the acceleration track?

10.

Which of the following parts are not part of the Shutdown Circuit? (Multiple choice)

1. What is the minium number of points your team can get when participating in th BPP finals?

2. For the rain test: (Multiple Choice)

3.

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

4. 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.

5. 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 (?, ?).

6. What does the red flag mean during the driving disciplines?

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

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

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

10. What is the penatly for driving off course during acceleration?

11.

The Electrical System Officer must: (Multiple Choice)

12.

The Electrical System Officer must: (Multiple Choice)

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

14. 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.

15.

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

16. 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

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

18. 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

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

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

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

2. 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

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

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

5. 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

6. 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

7. 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.

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

9. 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

10. 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.

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

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

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

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

5. 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

6. 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.

7. 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.

8. Using an indicator, the cylinder pressure can be plotted as a curve over the piston stroke. The curve recorded for the compression stroke of an internal combustion engine can be approximated by the relationship p⋅V^n=const..
What is the amount of work done by the volume change if the following values are given?

given: V_1=10^-3 m^3; p_1=0.1 MPa; p_2=3 MPa; n=1.3

Round to one decimal number seperated by a point. Input in Joul without writing the unit in the field below (example: 152.9).

9. A lorry contains an engine with a power of 0.255 W. The lorry drives for 51 s. Calculate the energy transferred in Joules and round to one decimal places.

10. Before the endurance you pump nitorgen in your tires at a temperature of 20°C and 0.7 bar relative pressure. Knowing, that during the endurance the maximal tyre temperature will be around 60°C, what will be the maximal relative pressure of the tyre? Give answer in bar to two decimal places.