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Quiz Preparation

36

Quiz „Basics“

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

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

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

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

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5. What must the Technical Vehicle System Documentation include?

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

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

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

9 / 10

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

10 / 10

10. How many points are assigned for the BOM discussion in the Cost and Manufacturing Event?

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49

Quiz „Intermediate“

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

2 / 20

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

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

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4. 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.

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

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

7 / 20

7. What are requirements of using a standard Impact Attenuator?

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

See FSG Rules 2023 A1.2.7

9 / 20

9. 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?

10 / 20

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

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11. Your team completes their best autocross run in 71.2 secs. The fastest team overall completed their run in 71 secs. How many points did your team recieve for autocross? Round to one decimal place.

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12.

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

13 / 20

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

  • installation cost: 400.000 EUR
  • machine cost: 25.000 EUR x 5 years = 125.000 EUR
  • material cost: 75 EUR x 1300 cars = 97.500 EUR
  • Total cost: 622.500 EUR
  • Cost per car: 622.500 EUR /1300 = 479 EUR

14 / 20

14. 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

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15. 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.

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16. How long is water sprayed on the car during the rain test?

17 / 20

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

18 / 20

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

19 / 20

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

20 / 20

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

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4

Quiz „Electrical“

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1. 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

2 / 10

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

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

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4. 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)

5 / 10

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

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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 / 10

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

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8. 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.

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9. 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

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

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Quiz „General Engineering“

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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 = 300 km/h, μF = 0.15, g = 9.81 m/s2.
Give your answer in meters, rounded to four significant places.

2 / 10

2. Frage

Strömungslehre Aufgabensammlung

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3. You would like to drink a cup of very hot coffee with milk early in the morning, but you
are in a hurry and have only 5 minutes until you have to leave for work. At which time
after brewing should you add the cold milk to the coffee and stir in order to decrease the
temperature of the mixture as much as possible:
a) 0 minutes (immediately),
b) 2 minutes, or
c) 4 minutes?
Suppose that the stirring can be done instantaneously and that you need the last one
minute for drinking.

brew temperature C = 80 ◦C, temperature of milk = M = 10 ◦C, room temperature
0 = 20 ◦C, volume of coffee VC = 300 ml, volume of milk VM = 100 ml, specific heat
capacity of coffee cC = 4180 J/(kgK), specific heat capacity of milk cM = 3500 J/(kgK).

Please enter only the letter of the corresponding answer

4 / 10

4.

An air stream dot{M}_L = 5.5  kg/s, cp_L=1 kJ/(kgK) is to be heated in a plate heat exchanger from θ_L′=20∘C ′ to θ_L′′=150∘C. For this purpose, a flue gas stream dot{M}_R = 7.22, cp_R=1.1 kJ/(kgK) with a temperature of θ_R′=300∘C is available. The overall heat transfer coefficient is k=15 W/(m^2*K).
What is the required heating surface AAA if the fluid streams are arranged in counterflow?

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5. 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.

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6.

What temperature would occur at the stagnation point of an aircraft flying at a speed of , assuming that the air behaves as an ideal gas under these conditions? The temperature of the undisturbed air is theta_1 = -30°C.

7 / 10

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.

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8.

In a cylinder, air is compressed isothermally at ambient temperature (θ_U=20∘C) to .
Calculate the change in the specific entropy of the air in the cylinder.
Round to two decimal numbers sperated by a point. Input in J/(kgK). (Example -365.26)

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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.

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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

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